This guide will walk you through the process of developing an Actions project that incorporates transactions for physical goods using payment methods managed by your site.

> [!WARNING]
> **Warning:** As of August 7th 2019, we deprecated the previous version of the Orders API that handles the physical transaction backend and replaced it with the Orders API version 3. If you've built an Action that handles physical transactions prior to this date, follow the [migration guide](https://developers.google.com/assistant/df-asdk/transactions/reference/physical/migrationv1v2/physical_migration_v3.md.txt) to update your Action.

## Transaction flow

When your Actions project handles physical transactions using merchant-managed payments, it
uses the following flow:

1. **Gather information (optional)** - Depending on the nature of your transaction, you may want to gather the following information from the user at the start of the conversation:
   1. **Validate transaction requirements** - Use the transactions requirements helper at the start of the conversation to make sure the user's payment information is properly configured and available before the user builds their cart.
   2. **Request a delivery address** - If your transaction requires a delivery address, request fulfillment of the delivery address helper intent to gather one from the user.
2. **Build the order** - Walk the user through a "cart assembly" where they pick which items they want to purchase.
3. **Perform Account Linking** - In order for the user to use a payment method they've saved with your service, use Account Linking to associate their Google account with their account on your service.
4. **Propose the order** - Once the cart is complete, propose the order to the user so they can confirm it's correct. If the order is confirmed, you'll receive a response with order details and a payment token.
5. **Finalize the order and send a receipt** - With the order confirmed, update your inventory tracking or other fulfillment services then send a receipt to the user.
6. **Send order updates** - Over the course of the order fulfillment's lifespan, give the user order updates by sending PATCH requests to the Orders API.

## Restrictions and review guidelines

Keep in mind that additional policies apply to Actions with transactions. It can take us up to six weeks to review Actions with transactions, so factor that time in when planning your release schedule. To ease the review process, make sure you comply with the [policies and guidelines for transactions](https://developers.google.com/assistant/console/policies/general-policies.md.txt#transactions) before submitting your Action for review.

You can only deploy Actions that sell physical goods in the following countries:

|---|---|---|
| Australia Brazil Canada Indonesia | Japan Mexico Qatar Russia | Singapore Switzerland Thailand Turkey United Kingdom United States |

> [!NOTE]
> **Note:** During the review process, you may see transactions performed by unknown users. These users are associated with Google as part of the transactions Action review process. Your Action won't be available to the general public until it's fully reviewed and published.

## Build your project

For extensive examples of transactional conversations, view our transactions samples in [Node.js](https://github.com/actions-on-google/dialogflow-transactions-nodejs) and [Java](https://github.com/actions-on-google/dialogflow-transactions-java).

### Project setup

When creating your Action, you must specify that you want to perform transactions
in the [Actions console](https://console.actions.google.com). Also, if you're
using the Node.JS client library, set up your fulfillment to use the latest
version of the Orders API.

> [!IMPORTANT]
> **Key Term:** The **Orders API** defines a suite of object types for processing transactions (like payment information and cart contents) and a dedicated API endpoint for sending order updates to a customer.

To set up your project and fulfillment, do the following:

1. Create a new project or import an existing project.
2. Navigate to **Deploy \> Directory information**.
3. Under **Additional information \> Transactions** \> check the box that says "Do your Actions
   use the Transactions API to perform transactions of physical goods?".

   > [!NOTE]
   > **Note:** We recommend using Dialogflow to make it much easier to build a high-quality conversational experience.

4. If you're using the Node.JS client library to build your Action's fulfillment,
   open your fulfillment code and update your app delcaration to set the
   `ordersv3` flag to `true`. The following code snippet shows an example app
   declaration for Orders version 3.

### Node.js

```javascript
const {dialogflow} = require('actions-on-google');
let app = dialogflow({
  clientId, // If using account linking
  debug: true,
  ordersv3: true,
});
```

### Node.js

```javascript
const {actionssdk} = require('actions-on-google');
let app = actionssdk({
  clientId, // If using account linking
  debug: true,
  ordersv3: true,
});
```

### Sign-in setup

When using your own payment method to charge the user, we recommend
linking their Google account with an account they have with your own service to
retrieve, present, and charge payment methods stored there.

We provide [OAuth 2.0 account linking](https://developers.google.com/assistant/df-asdk/identity.md.txt)
to satisfy this
requirement. We highly recommend enabling the OAuth 2.0 Assertion flow as it
enables a very streamlined user experience.

We provide the `actions.intent.SIGN_IN` intent which allows you to request that
a user link accounts mid-conversation. You must
[enable account linking](https://developers.google.com/assistant/df-asdk/identity/google-sign-in.md.txt#dialogflow-java)
in the [Actions Console](https://console.actions.google.com/) to use the
`actions.intent.SIGN_IN` intent.

You should use this intent if you are unable to find an `accessToken` in the
`User` object in the webhook request. This means that the user has not yet
linked their account.

After requesting the `actions.intent.SIGN_IN` intent, you will receive an
`Argument` containing a `SignInStatus` with a value of either `"OK"`,
`"CANCELLED"`, or `"ERROR"`. If the status is `"OK"` you should be able to find
an `accessToken` in the `User` object.

#### Fulfillment

##### Request sign in

### Node.js

```javascript
app.intent('Sign In', (conv) => {
  conv.ask(new SignIn('To get your account details'));
});
```

### Node.js

```javascript
conv.ask(new SignIn('To get your account details'));
```

### Java

```java
@ForIntent("Sign In")
public ActionResponse signIn(ActionRequest request) {
  return getResponseBuilder(request).add(
      new SignIn()
          .setContext("To get your account details"))
      .build();
}
```

### Java

```java
return getResponseBuilder(request).add(
    new SignIn()
        .setContext("To get your account details"))
    .build();
```

### JSON

```
{
    "payload": {
      "google": {
        "expectUserResponse": true,
        "systemIntent": {
          "intent": "actions.intent.SIGN_IN",
          "data": {
            "@type": "type.googleapis.com/google.actions.v2.SignInValueSpec",
            "optContext": "To get your account details"
          }
        }
      }
    }
  }
```

### JSON

```
{
  "expectUserResponse": true,
  "expectedInputs": [
    {
      "possibleIntents": [
        {
          "intent": "actions.intent.SIGN_IN",
          "inputValueData": {
            "@type": "type.googleapis.com/google.actions.v2.SignInValueSpec",
            "optContext": "To get your account details"
          }
        }
      ]
    }
  ],
  "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
}
```

##### Receive the sign in result

### Node.js

```javascript
app.intent('Sign In Complete', (conv, params, signin) => {
  if (signin.status !== 'OK') {
    conv.ask('You need to sign in before making a transaction.');
  } else {
    const accessToken = conv.user.access.token;
    // possibly do something with access token
    conv.ask('You must meet all the requirements necessary ' +
      'to make a transaction. Try saying ' +
      '"check transaction requirements".');
      conv.ask(new Suggestions(`check requirements`));
  }
});
```

### Node.js

```javascript
app.intent('actions.intent.SIGN_IN', (conv, params, signin) => {
  if (signin.status !== 'OK') {
    conv.ask('You need to sign in before making a transaction.');
  } else {
    const accessToken = conv.user.access.token;
    // possibly do something with access token
    conv.ask('You must meet all the requirements necessary ' +
      'to make a transaction. Try saying ' +
      '"check transaction requirements".');
      conv.ask(new Suggestions(`check requirements`));
  }
});
```

### Java

```java
@ForIntent("Sign In Complete")
public ActionResponse signInComplete(ActionRequest request) {
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (request.isSignInGranted()) {
    responseBuilder
        .add("You must meet all the requirements necessary to make a " +
            "transaction. Try saying \"check transaction requirements\".")
        .addSuggestions(new String[] {
            "check requirements"
        });
  } else {
    responseBuilder.add("You need to sign in before making a transaction.");
  }
  return responseBuilder.build();
}
```

### Java

```java
@ForIntent("actions.intent.SIGN_IN")
public ActionResponse signInComplete(ActionRequest request) {
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (request.isSignInGranted()) {
    responseBuilder
        .add("You must meet all the requirements necessary to make a " +
            "transaction. Try saying \"check transaction requirements\".")
        .addSuggestions(new String[] {
            "check requirements"
        });
  } else {
    responseBuilder.add("You need to sign in before making a transaction.");
  }
  return responseBuilder.build();
}
```

### JSON

```
{
    "responseId": "d2123d8d-3f00-466e-b5a9-1a4ed53a7cb7-594de0a7",
    "queryResult": {
      "queryText": "actions_intent_SIGN_IN",
      "parameters": {},
      "allRequiredParamsPresent": true,
      "fulfillmentMessages": [
        {
          "text": {
            "text": [
              ""
            ]
          }
        }
      ],
      "outputContexts": [
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/merchant_payment",
          "lifespanCount": 2
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_web_browser"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_screen_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_account_linking"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_media_response_audio"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_audio_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/google_assistant_input_type_keyboard"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_intent_sign_in",
          "parameters": {
            "SIGN_IN": {
              "@type": "type.googleapis.com/google.actions.v2.SignInValue",
              "status": "OK"
            },
            "text": ""
          }
        }
      ],
      "intent": {
        "name": "projects/df-transactions/agent/intents/105b925b-b186-4f5d-8bde-a9a782a0fa9f",
        "displayName": "Sign In Complete"
      },
      "intentDetectionConfidence": 1,
      "languageCode": "en"
    },
    "originalDetectIntentRequest": {
      "source": "google",
      "version": "2",
      "payload": {
        "user": {
          "locale": "en-US",
          "lastSeen": "2019-09-23T19:49:18Z",
          "userVerificationStatus": "VERIFIED"
        },
        "conversation": {
          "conversationId": "ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy",
          "type": "ACTIVE",
          "conversationToken": "[]"
        },
        "inputs": [
          {
            "intent": "actions.intent.SIGN_IN",
            "rawInputs": [
              {
                "inputType": "KEYBOARD"
              }
            ],
            "arguments": [
              {
                "name": "SIGN_IN",
                "extension": {
                  "@type": "type.googleapis.com/google.actions.v2.SignInValue",
                  "status": "OK"
                }
              },
              {
                "name": "text"
              }
            ]
          }
        ],
        "surface": {
          "capabilities": [
            {
              "name": "actions.capability.WEB_BROWSER"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.ACCOUNT_LINKING"
            },
            {
              "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
            },
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            }
          ]
        },
        "availableSurfaces": [
          {
            "capabilities": [
              {
                "name": "actions.capability.WEB_BROWSER"
              },
              {
                "name": "actions.capability.AUDIO_OUTPUT"
              },
              {
                "name": "actions.capability.SCREEN_OUTPUT"
              }
            ]
          }
        ]
      }
    },
    "session": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy"
  }
```

### JSON

```
{
  "user": {
    "locale": "en-US",
    "lastSeen": "2019-11-11T23:55:52Z",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHGFwStZlYaQ9YT8rg9t_idVsxZrku1pUDrEbGSJmSUMatVdPwPEEQSCe1IwIBoN4sS4Weyn9pmgetEgbsWgw3JSvQmw",
    "type": "ACTIVE",
    "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
  },
  "inputs": [
    {
      "intent": "actions.intent.SIGN_IN",
      "rawInputs": [
        {}
      ],
      "arguments": [
        {
          "name": "SIGN_IN",
          "extension": {
            "@type": "type.googleapis.com/google.actions.v2.SignInValue",
            "status": "OK"
          }
        },
        {
          "name": "text"
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      },
      {
        "name": "actions.capability.SCREEN_OUTPUT"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      }
    ]
  },
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        },
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        },
        {
          "name": "actions.capability.WEB_BROWSER"
        }
      ]
    }
  ]
}
```

### 1. Gather information *(optional)*

#### 1a. Validate transaction requirements *(optional)*

##### User experience

Trigger the `actions.intent.TRANSACTION_REQUIREMENTS_CHECK` intent to
quickly check whether or not users will be able to perform a transaction. This
step will ensure users can proceed and give them an opportunity to fix any settings
preventing them from fulfilling a transaction.

For example, when invoked, your Action might ask,
"would you like to order shoes, or check your account balance?" If the user says
"order shoes", you should request this intent right away, which will ensure
they can proceed and give them an opportunity to fix any settings
preventing them from continuing with the transaction.

Requesting the transactions
requirements check intent will result in one of the following outcomes:

- If the requirements are met, the intent will be sent back to your fulfillment with a success condition and you can proceed with building the user's order.
- If one or more of the requirements cannot be met, the intent will be sent back to your fulfillment with a failure condition. In this case, you should pivot the conversation away from the transactional experience, or end the conversation.
  - If any errors resulting in the failure state can be fixed by the user, they will be prompted to resolve those issues on their device. If the conversation is taking place on an voice-only surface, a handoff will be initiated to the user's phone.

##### Fulfillment

To ensure that a user meets
transaction requirements, request fulfillment of the
`actions.intent.TRANSACTION_REQUIREMENTS_CHECK` intent with a
[TransactionRequirementsCheckSpec](https://developers.google.com/assistant/conversational/webhook/reference/rest/Shared.Types/TransactionRequirementsCheckSpec) object.

> [!NOTE]
> **Note:** The fulfillment of this intent is also silently requested during fulfillment of `actions.intent.TRANSACTION_DECISION`.

###### Check requirements

You can check to see if a user satisfies transactions requirements by using the
client library:

### Node.js

```javascript
conv.ask(new TransactionRequirements());
```

### Node.js

```javascript
conv.ask(new TransactionRequirements());
```

### Java

```java
return getResponseBuilder(request)
    .add(new TransactionRequirements())
    .build();
```

### Java

```java
return getResponseBuilder(request)
    .add(new TransactionRequirements())
    .build();
```

### JSON

```
{
    "payload": {
      "google": {
        "expectUserResponse": true,
        "systemIntent": {
          "intent": "actions.intent.TRANSACTION_REQUIREMENTS_CHECK",
          "data": {
            "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionRequirementsCheckSpec"
          }
        }
      }
    }
  }
```

### JSON

```
{
  "expectUserResponse": true,
  "expectedInputs": [
    {
      "possibleIntents": [
        {
          "intent": "actions.intent.TEXT"
        }
      ],
      "inputPrompt": {
        "richInitialPrompt": {
          "items": [
            {
              "simpleResponse": {
                "textToSpeech": "Looks like you're good to go! Next I'll need your delivery address.Try saying \"get delivery address\"."
              }
            }
          ],
          "suggestions": [
            {
              "title": "get delivery address"
            }
          ]
        }
      }
    }
  ],
  "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
}
```

###### Receive the result of a requirements check

After the Assistant fulfills the intent, it sends your fulfillment a request
with the `actions.intent.TRANSACTION_REQUIREMENTS_CHECK` intent with the result
of the check. To properly handle this request, declare a Dialogflow intent
that's triggered by the `actions_intent_TRANSACTION_REQUIREMENTS_CHECK` event. When triggered,
handle it in your fulfillment using the client library:

### Node.js

```javascript
app.intent('Transaction Check Complete', (conv) => {
  const arg = conv.arguments.get('TRANSACTION_REQUIREMENTS_CHECK_RESULT');
  if (arg && arg.resultType === 'CAN_TRANSACT') {
    // Normally take the user through cart building flow
    conv.ask(`Looks like you're good to go! ` +
      `Next I'll need your delivery address.` +
      `Try saying "get delivery address".`);
    conv.ask(new Suggestions('get delivery address'));
  } else {
    // Exit conversation
    conv.close('Transaction failed.');
  }
});
```

### Node.js

```javascript
app.intent('actions.intent.TRANSACTION_REQUIREMENTS_CHECK', (conv) => {
  const arg = conv.arguments.get('TRANSACTION_REQUIREMENTS_CHECK_RESULT');
  if (arg && arg.resultType === 'CAN_TRANSACT') {
    // Normally take the user through cart building flow
    conv.ask(`Looks like you're good to go! ` +
      `Next I'll need your delivery address.` +
      `Try saying "get delivery address".`);
    conv.ask(new Suggestions('get delivery address'));
  } else {
    // Exit conversation
    conv.close('Transaction failed.');
  }
});
```

### Java

```java
@ForIntent("Transaction Check Complete")
public ActionResponse transactionCheckComplete(ActionRequest request) {
  LOGGER.info("Checking Transaction Requirements Result.");

  // Check result of transaction requirements check
  Argument transactionCheckResult = request
      .getArgument("TRANSACTION_REQUIREMENTS_CHECK_RESULT");
  boolean result = false;
  if (transactionCheckResult != null) {
    Map<String, Object> map = transactionCheckResult.getExtension();
    if (map != null) {
      String resultType = (String) map.get("resultType");
      result = resultType != null && resultType.equals("CAN_TRANSACT");
    }
  }

  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (result) {
    // Normally take the user through cart building flow
    responseBuilder
        .add("Looks like you're good to go! Next " +
            "I'll need your delivery address. Try saying " +
            "\"get delivery address\".")
        .addSuggestions(new String[]{"get delivery address"});
  } else {
    // Exit conversation
    responseBuilder.add("Transaction failed.");
  }
  return responseBuilder.build();
}
```

### Java

```java
@ForIntent("actions.intent.TRANSACTION_REQUIREMENTS_CHECK")
public ActionResponse transactionCheckComplete(ActionRequest request) {
  LOGGER.info("Checking Transaction Requirements Result.");

  // Check result of transaction requirements check
  Argument transactionCheckResult = request
      .getArgument("TRANSACTION_REQUIREMENTS_CHECK_RESULT");
  boolean result = false;
  if (transactionCheckResult != null) {
    Map<String, Object> map = transactionCheckResult.getExtension();
    if (map != null) {
      String resultType = (String) map.get("resultType");
      result = resultType != null && resultType.equals("CAN_TRANSACT");
    }
  }

  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (result) {
    // Normally take the user through cart building flow
    responseBuilder
        .add("Looks like you're good to go! Next " +
            "I'll need your delivery address. Try saying " +
            "\"get delivery address\".")
        .addSuggestions(new String[]{"get delivery address"});
  } else {
    // Exit conversation
    responseBuilder.add("Transaction failed.");
  }
  return responseBuilder.build();
}
```

### JSON

```
{
    "responseId": "db1a333c-2781-41e3-84b1-cc0cc37643d7-594de0a7",
    "queryResult": {
      "queryText": "actions_intent_TRANSACTION_REQUIREMENTS_CHECK",
      "action": "transaction.check.complete",
      "parameters": {},
      "allRequiredParamsPresent": true,
      "fulfillmentText": "Failed to get transaction check results",
      "fulfillmentMessages": [
        {
          "text": {
            "text": [
              "Failed to get transaction check results"
            ]
          }
        }
      ],
      "outputContexts": [
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_media_response_audio"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_audio_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_account_linking"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_screen_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_web_browser"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/google_assistant_input_type_keyboard"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/merchant_payment",
          "lifespanCount": 1
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_intent_transaction_requirements_check",
          "parameters": {
            "TRANSACTION_REQUIREMENTS_CHECK_RESULT": {
              "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionRequirementsCheckResult",
              "resultType": "CAN_TRANSACT"
            },
            "text": ""
          }
        }
      ],
      "intent": {
        "name": "projects/df-transactions/agent/intents/fd16d86b-60db-4d19-a683-5b52a22f4795",
        "displayName": "Transaction Check Complete"
      },
      "intentDetectionConfidence": 1,
      "languageCode": "en"
    },
    "originalDetectIntentRequest": {
      "source": "google",
      "version": "2",
      "payload": {
        "user": {
          "locale": "en-US",
          "lastSeen": "2019-09-23T19:49:32Z",
          "userVerificationStatus": "VERIFIED"
        },
        "conversation": {
          "conversationId": "ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy",
          "type": "ACTIVE",
          "conversationToken": "[\"merchant_payment\"]"
        },
        "inputs": [
          {
            "intent": "actions.intent.TRANSACTION_REQUIREMENTS_CHECK",
            "rawInputs": [
              {
                "inputType": "KEYBOARD"
              }
            ],
            "arguments": [
              {
                "name": "TRANSACTION_REQUIREMENTS_CHECK_RESULT",
                "extension": {
                  "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionRequirementsCheckResult",
                  "resultType": "CAN_TRANSACT"
                }
              },
              {
                "name": "text"
              }
            ]
          }
        ],
        "surface": {
          "capabilities": [
            {
              "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
            },
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            },
            {
              "name": "actions.capability.ACCOUNT_LINKING"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.WEB_BROWSER"
            }
          ]
        },
        "availableSurfaces": [
          {
            "capabilities": [
              {
                "name": "actions.capability.WEB_BROWSER"
              },
              {
                "name": "actions.capability.AUDIO_OUTPUT"
              },
              {
                "name": "actions.capability.SCREEN_OUTPUT"
              }
            ]
          }
        ]
      }
    },
    "session": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy"
  }
```

### JSON

```
{
  "user": {
    "locale": "en-US",
    "lastSeen": "2019-11-11T23:56:03Z",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHGFwStZlYaQ9YT8rg9t_idVsxZrku1pUDrEbGSJmSUMatVdPwPEEQSCe1IwIBoN4sS4Weyn9pmgetEgbsWgw3JSvQmw",
    "type": "ACTIVE",
    "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
  },
  "inputs": [
    {
      "intent": "actions.intent.TRANSACTION_REQUIREMENTS_CHECK",
      "rawInputs": [
        {}
      ],
      "arguments": [
        {
          "name": "TRANSACTION_REQUIREMENTS_CHECK_RESULT",
          "extension": {
            "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionRequirementsCheckResult",
            "resultType": "CAN_TRANSACT"
          }
        },
        {
          "name": "text"
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      },
      {
        "name": "actions.capability.SCREEN_OUTPUT"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      }
    ]
  },
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        },
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        },
        {
          "name": "actions.capability.WEB_BROWSER"
        }
      ]
    }
  ]
}
```

#### 1b. Request a delivery address *(optional)*

If your transaction requires a user's delivery address, you can request
fulfillment of the `actions.intent.DELIVERY_ADDRESS` intent. This might be
useful for determining the total price, delivery/pickup location, or for
ensuring the user is within your service region.

When requesting this intent to be fulfilled, you pass in a `reason` option that
allows you to preface the Assistant's request to obtain an address with a string.
For example, if you specify "to know where to send the order", the Assistant
might ask the user:

*"To know where to send the order, I'll need to get your delivery address"*

##### User experience

On surfaces with a screen, the user will choose which address they want to use
for the transaction. If they haven't previously given an address, they'll be
able to enter a new address.

On voice-only surfaces, the Assistant will ask the user for permission to share
their default address for the transaction. If they haven't previously given an
address, the conversation will be handed off to a phone for entry.

##### Request the address

### Node.js

```javascript
app.intent('Delivery Address', (conv) => {
  conv.ask(new DeliveryAddress({
    addressOptions: {
      reason: 'To know where to send the order',
    },
  }));
});
```

### Node.js

```javascript
conv.ask(new DeliveryAddress({
  addressOptions: {
    reason: 'To know where to send the order',
  },
}));
```

### Java

```java
@ForIntent("Delivery Address")
public ActionResponse deliveryAddress(ActionRequest request) {
  DeliveryAddressValueSpecAddressOptions addressOptions =
      new DeliveryAddressValueSpecAddressOptions()
          .setReason("To know where to send the order");
  return getResponseBuilder(request)
      .add(new DeliveryAddress()
          .setAddressOptions(addressOptions))
      .build();
}
```

### Java

```java
DeliveryAddressValueSpecAddressOptions addressOptions =
    new DeliveryAddressValueSpecAddressOptions()
        .setReason("To know where to send the order");
return getResponseBuilder(request)
    .add(new DeliveryAddress()
        .setAddressOptions(addressOptions))
    .build();
```

### JSON

```
{
    "payload": {
      "google": {
        "expectUserResponse": true,
        "systemIntent": {
          "intent": "actions.intent.DELIVERY_ADDRESS",
          "data": {
            "@type": "type.googleapis.com/google.actions.v2.DeliveryAddressValueSpec",
            "addressOptions": {
              "reason": "To know where to send the order"
            }
          }
        }
      }
    }
  }
```

### JSON

```
{
  "expectUserResponse": true,
  "expectedInputs": [
    {
      "possibleIntents": [
        {
          "intent": "actions.intent.DELIVERY_ADDRESS",
          "inputValueData": {
            "@type": "type.googleapis.com/google.actions.v2.DeliveryAddressValueSpec",
            "addressOptions": {
              "reason": "To know where to send the order"
            }
          }
        }
      ]
    }
  ],
  "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
}
```

##### Receive the address

After the Assistant fulfills the intent, it sends your fulfillment a request
with the `actions.intent.DELIVERY_ADDRESS` intent.

To properly handle this request, declare a Dialogflow intent that's triggered by
the `actions_intent_DELIVERY_ADDRESS`event. When triggered, handle it in your
fulfillment using the client library:

### Node.js

```javascript
app.intent('Delivery Address Complete', (conv) => {
  const arg = conv.arguments.get('DELIVERY_ADDRESS_VALUE');
  if (arg && arg.userDecision ==='ACCEPTED') {
    conv.data.location = arg.location;
    conv.ask('Great, got your address! Now say "confirm transaction".');
    conv.ask(new Suggestions('confirm transaction'));
  } else {
    conv.close('Transaction failed.');
  }
});
```

### Node.js

```javascript
app.intent('actions.intent.DELIVERY_ADDRESS', (conv) => {
  const arg = conv.arguments.get('DELIVERY_ADDRESS_VALUE');
  if (arg && arg.userDecision ==='ACCEPTED') {
    conv.data.location = arg.location;
    conv.ask('Great, got your address! Now say "confirm transaction".');
    conv.ask(new Suggestions('confirm transaction'));
  } else {
    conv.close('Transaction failed.');
  }
});
```

### Java

```java
@ForIntent("Delivery Address Complete")
public ActionResponse deliveryAddressComplete(ActionRequest request) {
  Argument deliveryAddressValue = request.getArgument("DELIVERY_ADDRESS_VALUE");
  Location deliveryAddress = null;
  if (deliveryAddressValue != null) {
    Map<String, Object> map = deliveryAddressValue.getExtension();
    if (map != null) {
      String userDecision = (String) map.get("userDecision");
      Location location = (Location) map.get("location");
      deliveryAddress = userDecision != null && userDecision.equals("ACCEPTED") ? location : null;
    }
  }
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (deliveryAddress != null) {
    // Cache delivery address in conversation data for later use
    Map<String, Object> conversationData = request.getConversationData();
    conversationData.put("location",
        GSON_BUILDER.create().toJson(deliveryAddress, Location.class));
    responseBuilder
        .add("Great, got your address! Now say \"confirm transaction\".")
        .addSuggestions(new String[] {
            "confirm transaction"
        });
  } else {
    responseBuilder.add("Transaction failed.").endConversation();
  }
  return responseBuilder.build();
}
```

### Java

```java
@ForIntent("actions.intent.DELIVERY_ADDRESS")
public ActionResponse deliveryAddressComplete(ActionRequest request) {
  Argument deliveryAddressValue = request.getArgument("DELIVERY_ADDRESS_VALUE");
  Location deliveryAddress = null;
  if (deliveryAddressValue != null) {
    Map<String, Object> map = deliveryAddressValue.getExtension();
    if (map != null) {
      String userDecision = (String) map.get("userDecision");
      Location location = (Location) map.get("location");
      deliveryAddress = userDecision != null && userDecision.equals("ACCEPTED") ? location : null;
    }
  }
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (deliveryAddress != null) {
    // Cache delivery address in conversation data for later use
    Map<String, Object> conversationData = request.getConversationData();
    conversationData.put("location",
        GSON_BUILDER.create().toJson(deliveryAddress, Location.class));
    responseBuilder
        .add("Great, got your address! Now say \"confirm transaction\".")
        .addSuggestions(new String[] {
            "confirm transaction"
        });
  } else {
    responseBuilder.add("Transaction failed.").endConversation();
  }
  return responseBuilder.build();
}
```

### JSON

```
{
    "responseId": "58b0c305-b437-47ac-8593-4fb0122a19e6-594de0a7",
    "queryResult": {
      "queryText": "actions_intent_DELIVERY_ADDRESS",
      "parameters": {},
      "allRequiredParamsPresent": true,
      "fulfillmentMessages": [
        {
          "text": {
            "text": [
              ""
            ]
          }
        }
      ],
      "outputContexts": [
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_media_response_audio"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_audio_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_account_linking"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_screen_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_web_browser"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_intent_delivery_address",
          "parameters": {
            "DELIVERY_ADDRESS_VALUE": {
              "@type": "type.googleapis.com/google.actions.v2.DeliveryAddressValue",
              "userDecision": "ACCEPTED",
              "location": {
                "coordinates": {
                  "latitude": 37.432524,
                  "longitude": -122.098545
                },
                "zipCode": "94043-1351",
                "city": "MOUNTAIN VIEW",
                "postalAddress": {
                  "regionCode": "US",
                  "postalCode": "94043-1351",
                  "administrativeArea": "CA",
                  "locality": "MOUNTAIN VIEW",
                  "addressLines": [
                    "1600 AMPHITHEATRE PKWY"
                  ],
                  "recipients": [
                    "John Doe"
                  ]
                },
                "phoneNumber": "+1 123-456-7890"
              }
            },
            "text": "1600 AMPHITHEATRE PKWY"
          }
        }
      ],
      "intent": {
        "name": "projects/df-transactions/agent/intents/0be5d130-1760-4355-85e9-4dc01da8bf3c",
        "displayName": "Delivery Address Complete"
      },
      "intentDetectionConfidence": 1,
      "languageCode": "en"
    },
    "originalDetectIntentRequest": {
      "source": "google",
      "version": "2",
      "payload": {
        "user": {
          "locale": "en-US",
          "lastSeen": "2019-09-23T19:49:55Z",
          "userVerificationStatus": "VERIFIED"
        },
        "conversation": {
          "conversationId": "ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy",
          "type": "ACTIVE",
          "conversationToken": "[]"
        },
        "inputs": [
          {
            "intent": "actions.intent.DELIVERY_ADDRESS",
            "rawInputs": [
              {
                "query": "1600 AMPHITHEATRE PKWY"
              }
            ],
            "arguments": [
              {
                "name": "DELIVERY_ADDRESS_VALUE",
                "extension": {
                  "@type": "type.googleapis.com/google.actions.v2.DeliveryAddressValue",
                  "userDecision": "ACCEPTED",
                  "location": {
                    "coordinates": {
                      "latitude": 37.432524,
                      "longitude": -122.098545
                    },
                    "zipCode": "94043-1351",
                    "city": "MOUNTAIN VIEW",
                    "postalAddress": {
                      "regionCode": "US",
                      "postalCode": "94043-1351",
                      "administrativeArea": "CA",
                      "locality": "MOUNTAIN VIEW",
                      "addressLines": [
                        "1600 AMPHITHEATRE PKWY"
                      ],
                      "recipients": [
                        "John Doe"
                      ]
                    },
                    "phoneNumber": "+1 123-456-7890"
                  }
                }
              }
            ]
          }
        ],
        "surface": {
          "capabilities": [
            {
              "name": "actions.capability.WEB_BROWSER"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.ACCOUNT_LINKING"
            },
            {
              "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
            },
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            }
          ]
        },
        "availableSurfaces": [
          {
            "capabilities": [
              {
                "name": "actions.capability.WEB_BROWSER"
              },
              {
                "name": "actions.capability.AUDIO_OUTPUT"
              },
              {
                "name": "actions.capability.SCREEN_OUTPUT"
              }
            ]
          }
        ]
      }
    },
    "session": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy"
  }
```

### JSON

```
{
  "user": {
    "locale": "en-US",
    "lastSeen": "2019-11-11T23:57:20Z",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHGFwStZlYaQ9YT8rg9t_idVsxZrku1pUDrEbGSJmSUMatVdPwPEEQSCe1IwIBoN4sS4Weyn9pmgetEgbsWgw3JSvQmw",
    "type": "ACTIVE",
    "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
  },
  "inputs": [
    {
      "intent": "actions.intent.DELIVERY_ADDRESS",
      "rawInputs": [
        {
          "inputType": "VOICE",
          "query": "1600 AMPHITHEATRE PKWY"
        }
      ],
      "arguments": [
        {
          "name": "DELIVERY_ADDRESS_VALUE",
          "extension": {
            "@type": "type.googleapis.com/google.actions.v2.DeliveryAddressValue",
            "userDecision": "ACCEPTED",
            "location": {
              "coordinates": {
                "latitude": 37.421578499999995,
                "longitude": -122.0837816
              },
              "zipCode": "94043-1351",
              "city": "MOUNTAIN VIEW",
              "postalAddress": {
                "regionCode": "US",
                "postalCode": "94043-1351",
                "administrativeArea": "CA",
                "locality": "MOUNTAIN VIEW",
                "addressLines": [
                  "1600 AMPHITHEATRE PKWY"
                ],
                "recipients": [
                  "John Doe"
                ]
              },
              "phoneNumber": "+1 123-456-7890"
            }
          }
        },
        {
          "name": "text",
          "rawText": "1600 AMPHITHEATRE PKWY",
          "textValue": "1600 AMPHITHEATRE PKWY"
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.SCREEN_OUTPUT"
      },
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      }
    ]
  },
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        },
        {
          "name": "actions.capability.WEB_BROWSER"
        },
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        }
      ]
    }
  ]
}
```

### 2. Build the order

#### User experience

Once you have the user information you need, you build a "cart
assembly" experience that guides the user to build an order. Every Action will
have a slightly different cart assembly flow as appropriate for their
product or service.

The most basic cart assembly experience has a user pick items from a list to add
to their order, though you can design the conversation to simplify the
user experience. You could build a cart assembly experience that enables the
user to re-order their most recent purchase via a simple yes or no question.
You could also present the user a carousel or list card of the top "featured" or
"recommended" items.

We recommend using [rich
responses](https://developers.google.com/assistant/df-asdk/conversational/rich-responses) to present the user's options
visually, but also design the conversation such that the user can build their
cart using only their voice. For some best practices and examples of
high-quality cart assembly experiences, see the
[Transactions Design Guidelines](https://developers.google.com/assistant/df-asdk/transactions/physical/design.md.txt).

#### Fulfillment

Throughout your conversation, you'll need to gather the items that a user wants
to purchase and then construct an [`Order`](https://developers.google.com/assistant/df-asdk/transactions/reference/physical/rest/v3/Order.md.txt) object.

At minimum, your `Order` must contain the following:

- `buyerInfo` - Information about the user making the purchase.
- `transactionMerchant` - Information about the merchant that facilitated the order.
- `contents` - The actual contents of the order listed as `lineItems`.
- `priceAttributes` - Pricing details about the order, including the total cost of the order with discounts and taxes.

> [!NOTE]
> **Note:** Additional information is automatically added to the `Order` object throughout the transaction. For more information about the possible contents of an order, refer to the [reference documentation](https://developers.google.com/assistant/df-asdk/transactions/reference/physical.md.txt).

Refer to the [`Order`](https://developers.google.com/assistant/df-asdk/transactions/reference/physical/rest/v3/Order.md.txt) response documentation
to construct your cart. Note that you may need to include different fields
depending on the order.

The sample code below shows a complete order, including optional fields:

### Node.js

```javascript
const order = {
  createTime: '2019-09-24T18:00:00.877Z',
  lastUpdateTime: '2019-09-24T18:00:00.877Z',
  merchantOrderId: orderId, // A unique ID String for the order
  userVisibleOrderId: orderId,
  transactionMerchant: {
    id: 'http://www.example.com',
    name: 'Example Merchant',
  },
  contents: {
    lineItems: [
      {
        id: 'LINE_ITEM_ID',
        name: 'Pizza',
        description: 'A four cheese pizza.',
        priceAttributes: [
          {
            type: 'REGULAR',
            name: 'Item Price',
            state: 'ACTUAL',
            amount: {
              currencyCode: 'USD',
              amountInMicros: 8990000,
            },
            taxIncluded: true,
          },
          {
            type: 'TOTAL',
            name: 'Total Price',
            state: 'ACTUAL',
            amount: {
              currencyCode: 'USD',
              amountInMicros: 9990000,
            },
            taxIncluded: true,
          },
        ],
        notes: [
          'Extra cheese.',
        ],
        purchase: {
          quantity: 1,
          unitMeasure: {
            measure: 1,
            unit: 'POUND',
          },
          itemOptions: [
            {
              id: 'ITEM_OPTION_ID',
              name: 'Pepperoni',
              prices: [
                {
                  type: 'REGULAR',
                  state: 'ACTUAL',
                  name: 'Item Price',
                  amount: {
                    currencyCode: 'USD',
                    amountInMicros: 1000000,
                  },
                  taxIncluded: true,
                },
                {
                  type: 'TOTAL',
                  name: 'Total Price',
                  state: 'ACTUAL',
                  amount: {
                    currencyCode: 'USD',
                    amountInMicros: 1000000,
                  },
                  taxIncluded: true,
                },
              ],
              note: 'Extra pepperoni',
              quantity: 1,
              subOptions: [],
            },
          ],
        },
      },
    ],
  },
  buyerInfo: {
    email: 'janedoe@gmail.com',
    firstName: 'Jane',
    lastName: 'Doe',
    displayName: 'Jane Doe',
  },
  priceAttributes: [
    {
      type: 'SUBTOTAL',
      name: 'Subtotal',
      state: 'ESTIMATE',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 9990000,
      },
      taxIncluded: true,
    },
    {
      type: 'DELIVERY',
      name: 'Delivery',
      state: 'ACTUAL',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 2000000,
      },
      taxIncluded: true,
    },
    {
      type: 'TAX',
      name: 'Tax',
      state: 'ESTIMATE',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 3780000,
      },
      taxIncluded: true,
    },
    {
      type: 'TOTAL',
      name: 'Total Price',
      state: 'ESTIMATE',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 15770000,
      },
      taxIncluded: true,
    },
  ],
  followUpActions: [
    {
      type: 'VIEW_DETAILS',
      title: 'View details',
      openUrlAction: {
        url: 'http://example.com',
      },
    },
    {
      type: 'CALL',
      title: 'Call us',
      openUrlAction: {
        url: 'tel:+16501112222',
      },
    },
    {
      type: 'EMAIL',
      title: 'Email us',
      openUrlAction: {
        url: 'mailto:person@example.com',
      },
    },
  ],
  termsOfServiceUrl: 'http://www.example.com',
  note: 'Sale event',
  promotions: [
    {
      coupon: 'COUPON_CODE',
    },
  ],
  purchase: {
    status: 'CREATED',
    userVisibleStatusLabel: 'CREATED',
    type: 'FOOD',
    returnsInfo: {
      isReturnable: false,
      daysToReturn: 1,
      policyUrl: 'http://www.example.com',
    },
    fulfillmentInfo: {
      id: 'FULFILLMENT_SERVICE_ID',
      fulfillmentType: 'DELIVERY',
      expectedFulfillmentTime: {
        timeIso8601: '2019-09-25T18:00:00.877Z',
      },
      location: location,
      price: {
        type: 'REGULAR',
        name: 'Delivery Price',
        state: 'ACTUAL',
        amount: {
          currencyCode: 'USD',
          amountInMicros: 2000000,
        },
        taxIncluded: true,
      },
      fulfillmentContact: {
        email: 'johnjohnson@gmail.com',
        firstName: 'John',
        lastName: 'Johnson',
        displayName: 'John Johnson',
      },
    },
    purchaseLocationType: 'ONLINE_PURCHASE',
  },
};
```

### Node.js

```javascript
const order = {
  createTime: '2019-09-24T18:00:00.877Z',
  lastUpdateTime: '2019-09-24T18:00:00.877Z',
  merchantOrderId: orderId, // A unique ID String for the order
  userVisibleOrderId: orderId,
  transactionMerchant: {
    id: 'http://www.example.com',
    name: 'Example Merchant',
  },
  contents: {
    lineItems: [
      {
        id: 'LINE_ITEM_ID',
        name: 'Pizza',
        description: 'A four cheese pizza.',
        priceAttributes: [
          {
            type: 'REGULAR',
            name: 'Item Price',
            state: 'ACTUAL',
            amount: {
              currencyCode: 'USD',
              amountInMicros: 8990000,
            },
            taxIncluded: true,
          },
          {
            type: 'TOTAL',
            name: 'Total Price',
            state: 'ACTUAL',
            amount: {
              currencyCode: 'USD',
              amountInMicros: 9990000,
            },
            taxIncluded: true,
          },
        ],
        notes: [
          'Extra cheese.',
        ],
        purchase: {
          quantity: 1,
          unitMeasure: {
            measure: 1,
            unit: 'POUND',
          },
          itemOptions: [
            {
              id: 'ITEM_OPTION_ID',
              name: 'Pepperoni',
              prices: [
                {
                  type: 'REGULAR',
                  state: 'ACTUAL',
                  name: 'Item Price',
                  amount: {
                    currencyCode: 'USD',
                    amountInMicros: 1000000,
                  },
                  taxIncluded: true,
                },
                {
                  type: 'TOTAL',
                  name: 'Total Price',
                  state: 'ACTUAL',
                  amount: {
                    currencyCode: 'USD',
                    amountInMicros: 1000000,
                  },
                  taxIncluded: true,
                },
              ],
              note: 'Extra pepperoni',
              quantity: 1,
              subOptions: [],
            },
          ],
        },
      },
    ],
  },
  buyerInfo: {
    email: 'janedoe@gmail.com',
    firstName: 'Jane',
    lastName: 'Doe',
    displayName: 'Jane Doe',
  },
  priceAttributes: [
    {
      type: 'SUBTOTAL',
      name: 'Subtotal',
      state: 'ESTIMATE',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 9990000,
      },
      taxIncluded: true,
    },
    {
      type: 'DELIVERY',
      name: 'Delivery',
      state: 'ACTUAL',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 2000000,
      },
      taxIncluded: true,
    },
    {
      type: 'TAX',
      name: 'Tax',
      state: 'ESTIMATE',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 3780000,
      },
      taxIncluded: true,
    },
    {
      type: 'TOTAL',
      name: 'Total Price',
      state: 'ESTIMATE',
      amount: {
        currencyCode: 'USD',
        amountInMicros: 15770000,
      },
      taxIncluded: true,
    },
  ],
  followUpActions: [
    {
      type: 'VIEW_DETAILS',
      title: 'View details',
      openUrlAction: {
        url: 'http://example.com',
      },
    },
    {
      type: 'CALL',
      title: 'Call us',
      openUrlAction: {
        url: 'tel:+16501112222',
      },
    },
    {
      type: 'EMAIL',
      title: 'Email us',
      openUrlAction: {
        url: 'mailto:person@example.com',
      },
    },
  ],
  termsOfServiceUrl: 'http://www.example.com',
  note: 'Sale event',
  promotions: [
    {
      coupon: 'COUPON_CODE',
    },
  ],
  purchase: {
    status: 'CREATED',
    userVisibleStatusLabel: 'CREATED',
    type: 'FOOD',
    returnsInfo: {
      isReturnable: false,
      daysToReturn: 1,
      policyUrl: 'http://www.example.com',
    },
    fulfillmentInfo: {
      id: 'FULFILLMENT_SERVICE_ID',
      fulfillmentType: 'DELIVERY',
      expectedFulfillmentTime: {
        timeIso8601: '2019-09-25T18:00:00.877Z',
      },
      location: location,
      price: {
        type: 'REGULAR',
        name: 'Delivery Price',
        state: 'ACTUAL',
        amount: {
          currencyCode: 'USD',
          amountInMicros: 2000000,
        },
        taxIncluded: true,
      },
      fulfillmentContact: {
        email: 'johnjohnson@gmail.com',
        firstName: 'John',
        lastName: 'Johnson',
        displayName: 'John Johnson',
      },
    },
    purchaseLocationType: 'ONLINE_PURCHASE',
  },
};
```

### Java

```java
// Transaction Merchant
MerchantV3 transactionMerchant = new MerchantV3()
    .setId("http://www.example.com")
    .setName("Example Merchant");

// Line Item
PriceAttribute itemPrice = new PriceAttribute()
    .setType("REGULAR")
    .setName("Item Price")
    .setState("ACTUAL")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(8990000L)
    )
    .setTaxIncluded(true);

PriceAttribute totalItemPrice = new PriceAttribute()
    .setType("TOTAL")
    .setName("Total Price")
    .setState("ACTUAL")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(9990000L)
    )
    .setTaxIncluded(true);

// Purchase Item Extension
PurchaseItemExtension purchaseItemExtension = new PurchaseItemExtension()
    .setQuantity(1)
    .setUnitMeasure(new MerchantUnitMeasure()
        .setMeasure(1.0)
        .setUnit("POUND"))
    .setItemOptions(Arrays.asList(new PurchaseItemExtensionItemOption()
        .setId("ITEM_OPTION_ID")
        .setName("Pepperoni")
        .setPrices(Arrays.asList(
            new PriceAttribute()
              .setType("REGULAR")
              .setState("ACTUAL")
              .setName("Item Price")
              .setAmount(new MoneyV3()
                  .setCurrencyCode("USD")
                  .setAmountInMicros(1000000L))
              .setTaxIncluded(true),
            new PriceAttribute()
                .setType("TOTAL")
                .setState("ACTUAL")
                .setName("Total Price")
                .setAmount(new MoneyV3()
                    .setCurrencyCode("USD")
                    .setAmountInMicros(1000000L))
                .setTaxIncluded(true)
            ))
        .setNote("Extra pepperoni")
        .setQuantity(1)));

LineItemV3 lineItem = new LineItemV3()
    .setId("LINE_ITEM_ID")
    .setName("Pizza")
    .setDescription("A four cheese pizza.")
    .setPriceAttributes(Arrays.asList(itemPrice, totalItemPrice))
    .setNotes(Collections.singletonList("Extra cheese."))
    .setPurchase(purchaseItemExtension);

// Order Contents
OrderContents contents = new OrderContents()
    .setLineItems(Collections.singletonList(lineItem));

// User Info
UserInfo buyerInfo = new UserInfo()
    .setEmail("janedoe@gmail.com")
    .setFirstName("Jane")
    .setLastName("Doe")
    .setDisplayName("Jane Doe");

// Price Attributes
PriceAttribute subTotal = new PriceAttribute()
    .setType("SUBTOTAL")
    .setName("Subtotal")
    .setState("ESTIMATE")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(9990000L)
    )
    .setTaxIncluded(true);
PriceAttribute deliveryFee = new PriceAttribute()
    .setType("DELIVERY")
    .setName("Delivery")
    .setState("ACTUAL")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(2000000L)
    )
    .setTaxIncluded(true);
PriceAttribute tax = new PriceAttribute()
    .setType("TAX")
    .setName("Tax")
    .setState("ESTIMATE")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(3780000L)
    )
    .setTaxIncluded(true);
PriceAttribute totalPrice = new PriceAttribute()
    .setType("TOTAL")
    .setName("Total Price")
    .setState("ESTIMATE")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(15770000L)
    )
    .setTaxIncluded(true);

// Follow up actions
Action viewDetails = new Action()
    .setType("VIEW_DETAILS")
    .setTitle("View details")
    .setOpenUrlAction(new OpenUrlAction()
        .setUrl("https://example.com"));
Action call = new Action()
    .setType("CALL")
    .setTitle("Call us")
    .setOpenUrlAction(new OpenUrlAction()
        .setUrl("tel:+16501112222"));
Action email = new Action()
    .setType("EMAIL")
    .setTitle("Email us")
    .setOpenUrlAction(new OpenUrlAction()
        .setUrl("mailto:person@example.com"));

// Terms of service and order note
String termsOfServiceUrl = "http://example.com";
String orderNote = "Sale event";

// Promotions
PromotionV3 promotion = new PromotionV3()
    .setCoupon("COUPON_CODE");

// Purchase Order Extension
Location location = GSON_BUILDER.create().fromJson(
    (String) conversationData.get("location"), Location.class);

PurchaseOrderExtension purchaseOrderExtension = new PurchaseOrderExtension()
    .setStatus("CREATED")
    .setUserVisibleStatusLabel("CREATED")
    .setType("FOOD")
    .setReturnsInfo(new PurchaseReturnsInfo()
        .setIsReturnable(false)
        .setDaysToReturn(1)
        .setPolicyUrl("https://example.com"))
    .setFulfillmentInfo(new PurchaseFulfillmentInfo()
        .setId("FULFILLMENT_SERVICE_ID")
        .setFulfillmentType("DELIVERY")
        .setExpectedFulfillmentTime(new TimeV3()
            .setTimeIso8601("2019-09-25T18:00:00.877Z"))
        .setLocation(location)
        .setPrice(new PriceAttribute()
            .setType("REGULAR")
            .setName("Delivery price")
            .setState("ACTUAL")
            .setAmount(new MoneyV3()
                .setCurrencyCode("USD")
                .setAmountInMicros(2000000L))
            .setTaxIncluded(true))
        .setFulfillmentContact(new UserInfo()
            .setEmail("johnjohnson@gmail.com")
            .setFirstName("John")
            .setLastName("Johnson")
            .setDisplayName("John Johnson")))
    .setPurchaseLocationType("ONLINE_PURCHASE");

OrderV3 order = new OrderV3()
    .setCreateTime("2019-09-24T18:00:00.877Z")
    .setLastUpdateTime("2019-09-24T18:00:00.877Z")
    .setMerchantOrderId(orderId)
    .setUserVisibleOrderId(orderId)
    .setTransactionMerchant(transactionMerchant)
    .setContents(contents)
    .setBuyerInfo(buyerInfo)
    .setPriceAttributes(Arrays.asList(
        subTotal,
        deliveryFee,
        tax,
        totalPrice
    ))
    .setFollowUpActions(Arrays.asList(
        viewDetails,
        call,
        email
    ))
    .setTermsOfServiceUrl(termsOfServiceUrl)
    .setNote(orderNote)
    .setPromotions(Collections.singletonList(promotion))
    .setPurchase(purchaseOrderExtension);
```

### Java

```java
// Transaction Merchant
MerchantV3 transactionMerchant = new MerchantV3()
    .setId("http://www.example.com")
    .setName("Example Merchant");

// Line Item
PriceAttribute itemPrice = new PriceAttribute()
    .setType("REGULAR")
    .setName("Item Price")
    .setState("ACTUAL")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(8990000L)
    )
    .setTaxIncluded(true);

PriceAttribute totalItemPrice = new PriceAttribute()
    .setType("TOTAL")
    .setName("Total Price")
    .setState("ACTUAL")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(9990000L)
    )
    .setTaxIncluded(true);

// Purchase Item Extension
PurchaseItemExtension purchaseItemExtension = new PurchaseItemExtension()
    .setUnitMeasure(new MerchantUnitMeasure()
        .setMeasure(1.0)
        .setUnit("POUND"))
    .setItemOptions(Arrays.asList(new PurchaseItemExtensionItemOption()
        .setId("ITEM_OPTION_ID")
        .setName("Pepperoni")
        .setPrices(Arrays.asList(
            new PriceAttribute()
              .setType("REGULAR")
              .setState("ACTUAL")
              .setName("Item Price")
              .setAmount(new MoneyV3()
                  .setCurrencyCode("USD")
                  .setAmountInMicros(1000000L))
              .setTaxIncluded(true),
            new PriceAttribute()
                .setType("TOTAL")
                .setState("ACTUAL")
                .setName("Total Price")
                .setAmount(new MoneyV3()
                    .setCurrencyCode("USD")
                    .setAmountInMicros(1000000L))
                .setTaxIncluded(true)
            ))
        .setNote("Extra pepperoni")));

LineItemV3 lineItem = new LineItemV3()
    .setId("LINE_ITEM_ID")
    .setName("Pizza")
    .setDescription("A four cheese pizza.")
    .setPriceAttributes(Arrays.asList(itemPrice, totalItemPrice))
    .setNotes(Collections.singletonList("Extra cheese."))
    .setPurchase(purchaseItemExtension);

// Order Contents
OrderContents contents = new OrderContents()
    .setLineItems(Collections.singletonList(lineItem));

// User Info
UserInfo buyerInfo = new UserInfo()
    .setEmail("janedoe@gmail.com")
    .setFirstName("Jane")
    .setLastName("Doe")
    .setDisplayName("Jane Doe");

// Price Attributes
PriceAttribute subTotal = new PriceAttribute()
    .setType("SUBTOTAL")
    .setName("Subtotal")
    .setState("ESTIMATE")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(9990000L)
    )
    .setTaxIncluded(true);
PriceAttribute deliveryFee = new PriceAttribute()
    .setType("DELIVERY")
    .setName("Delivery")
    .setState("ACTUAL")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(2000000L)
    )
    .setTaxIncluded(true);
PriceAttribute tax = new PriceAttribute()
    .setType("TAX")
    .setName("Tax")
    .setState("ESTIMATE")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(3780000L)
    )
    .setTaxIncluded(true);
PriceAttribute totalPrice = new PriceAttribute()
    .setType("TOTAL")
    .setName("Total Price")
    .setState("ESTIMATE")
    .setAmount(new MoneyV3()
        .setCurrencyCode("USD")
        .setAmountInMicros(15770000L)
    )
    .setTaxIncluded(true);

// Follow up actions
Action viewDetails = new Action()
    .setType("VIEW_DETAILS")
    .setTitle("View details")
    .setOpenUrlAction(new OpenUrlAction()
        .setUrl("https://example.com"));
Action call = new Action()
    .setType("CALL")
    .setTitle("Call us")
    .setOpenUrlAction(new OpenUrlAction()
        .setUrl("tel:+16501112222"));
Action email = new Action()
    .setType("EMAIL")
    .setTitle("Email us")
    .setOpenUrlAction(new OpenUrlAction()
        .setUrl("mailto:person@example.com"));

// Terms of service and order note
String termsOfServiceUrl = "http://example.com";
String orderNote = "Sale event";

// Promotions
PromotionV3 promotion = new PromotionV3()
    .setCoupon("COUPON_CODE");

// Purchase Order Extension
Location location = GSON_BUILDER.create().fromJson(
    (String) conversationData.get("location"), Location.class);

PurchaseOrderExtension purchaseOrderExtension = new PurchaseOrderExtension()
    .setStatus("CREATED")
    .setUserVisibleStatusLabel("CREATED")
    .setType("FOOD")
    .setReturnsInfo(new PurchaseReturnsInfo()
        .setIsReturnable(false)
        .setDaysToReturn(1)
        .setPolicyUrl("https://example.com"))
    .setFulfillmentInfo(new PurchaseFulfillmentInfo()
        .setId("FULFILLMENT_SERVICE_ID")
        .setFulfillmentType("DELIVERY")
        .setExpectedFulfillmentTime(new TimeV3()
            .setTimeIso8601("2019-09-25T18:00:00.877Z"))
        .setLocation(location)
        .setPrice(new PriceAttribute()
            .setType("REGULAR")
            .setName("Delivery price")
            .setState("ACTUAL")
            .setAmount(new MoneyV3()
                .setCurrencyCode("USD")
                .setAmountInMicros(2000000L))
            .setTaxIncluded(true))
        .setFulfillmentContact(new UserInfo()
            .setEmail("johnjohnson@gmail.com")
            .setFirstName("John")
            .setLastName("Johnson")
            .setDisplayName("John Johnson")))
    .setPurchaseLocationType("ONLINE_PURCHASE");

OrderV3 order = new OrderV3()
    .setCreateTime("2019-09-24T18:00:00.877Z")
    .setLastUpdateTime("2019-09-24T18:00:00.877Z")
    .setMerchantOrderId(orderId)
    .setUserVisibleOrderId(orderId)
    .setTransactionMerchant(transactionMerchant)
    .setContents(contents)
    .setBuyerInfo(buyerInfo)
    .setPriceAttributes(Arrays.asList(
        subTotal,
        deliveryFee,
        tax,
        totalPrice
    ))
    .setFollowUpActions(Arrays.asList(
        viewDetails,
        call,
        email
    ))
    .setTermsOfServiceUrl(termsOfServiceUrl)
    .setNote(orderNote)
    .setPromotions(Collections.singletonList(promotion))
    .setPurchase(purchaseOrderExtension);
```

### 3. Perform Account Linking

When using your own payment method to charge the user, we recommend
linking their Google account with an account they have with your own service to
retrieve, present, and charge payment methods stored there.

We provide [OAuth 2.0 account linking](https://developers.google.com/assistant/df-asdk/identity.md.txt)
to satisfy this
requirement. We highly recommend enabling the OAuth 2.0 Assertion flow as it
enables a very streamlined user experience.

We provide the `actions.intent.SIGN_IN` intent which allows you to request that
a user link accounts mid-conversation. You must
[enable account linking](https://developers.google.com/assistant/df-asdk/identity/google-sign-in.md.txt#dialogflow-java)
in the [Actions Console](https://console.actions.google.com/) to use the
`actions.intent.SIGN_IN` intent.

You should use this intent if you are unable to find an `accessToken` in the
`User` object in the webhook request. This means that the user has not yet
linked their account.

After requesting the `actions.intent.SIGN_IN` intent, you will receive an
`Argument` containing a `SignInStatus` with a value of either `"OK"`,
`"CANCELLED"`, or `"ERROR"`. If the status is `"OK"` you should be able to find
an `accessToken` in the `User` object.

#### Fulfillment

##### Request sign in

### Node.js

```javascript
app.intent('Sign In', (conv) => {
  conv.ask(new SignIn('To get your account details'));
});
```

### Node.js

```javascript
conv.ask(new SignIn('To get your account details'));
```

### Java

```java
@ForIntent("Sign In")
public ActionResponse signIn(ActionRequest request) {
  return getResponseBuilder(request).add(
      new SignIn()
          .setContext("To get your account details"))
      .build();
}
```

### Java

```java
return getResponseBuilder(request).add(
    new SignIn()
        .setContext("To get your account details"))
    .build();
```

### JSON

```
{
    "payload": {
      "google": {
        "expectUserResponse": true,
        "systemIntent": {
          "intent": "actions.intent.SIGN_IN",
          "data": {
            "@type": "type.googleapis.com/google.actions.v2.SignInValueSpec",
            "optContext": "To get your account details"
          }
        }
      }
    }
  }
```

### JSON

```
{
  "expectUserResponse": true,
  "expectedInputs": [
    {
      "possibleIntents": [
        {
          "intent": "actions.intent.SIGN_IN",
          "inputValueData": {
            "@type": "type.googleapis.com/google.actions.v2.SignInValueSpec",
            "optContext": "To get your account details"
          }
        }
      ]
    }
  ],
  "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
}
```

##### Receive the sign in result

### Node.js

```javascript
app.intent('Sign In Complete', (conv, params, signin) => {
  if (signin.status !== 'OK') {
    conv.ask('You need to sign in before making a transaction.');
  } else {
    const accessToken = conv.user.access.token;
    // possibly do something with access token
    conv.ask('You must meet all the requirements necessary ' +
      'to make a transaction. Try saying ' +
      '"check transaction requirements".');
      conv.ask(new Suggestions(`check requirements`));
  }
});
```

### Node.js

```javascript
app.intent('actions.intent.SIGN_IN', (conv, params, signin) => {
  if (signin.status !== 'OK') {
    conv.ask('You need to sign in before making a transaction.');
  } else {
    const accessToken = conv.user.access.token;
    // possibly do something with access token
    conv.ask('You must meet all the requirements necessary ' +
      'to make a transaction. Try saying ' +
      '"check transaction requirements".');
      conv.ask(new Suggestions(`check requirements`));
  }
});
```

### Java

```java
@ForIntent("Sign In Complete")
public ActionResponse signInComplete(ActionRequest request) {
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (request.isSignInGranted()) {
    responseBuilder
        .add("You must meet all the requirements necessary to make a " +
            "transaction. Try saying \"check transaction requirements\".")
        .addSuggestions(new String[] {
            "check requirements"
        });
  } else {
    responseBuilder.add("You need to sign in before making a transaction.");
  }
  return responseBuilder.build();
}
```

### Java

```java
@ForIntent("actions.intent.SIGN_IN")
public ActionResponse signInComplete(ActionRequest request) {
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (request.isSignInGranted()) {
    responseBuilder
        .add("You must meet all the requirements necessary to make a " +
            "transaction. Try saying \"check transaction requirements\".")
        .addSuggestions(new String[] {
            "check requirements"
        });
  } else {
    responseBuilder.add("You need to sign in before making a transaction.");
  }
  return responseBuilder.build();
}
```

### JSON

```
{
    "responseId": "d2123d8d-3f00-466e-b5a9-1a4ed53a7cb7-594de0a7",
    "queryResult": {
      "queryText": "actions_intent_SIGN_IN",
      "parameters": {},
      "allRequiredParamsPresent": true,
      "fulfillmentMessages": [
        {
          "text": {
            "text": [
              ""
            ]
          }
        }
      ],
      "outputContexts": [
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/merchant_payment",
          "lifespanCount": 2
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_web_browser"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_screen_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_account_linking"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_media_response_audio"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_audio_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/google_assistant_input_type_keyboard"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_intent_sign_in",
          "parameters": {
            "SIGN_IN": {
              "@type": "type.googleapis.com/google.actions.v2.SignInValue",
              "status": "OK"
            },
            "text": ""
          }
        }
      ],
      "intent": {
        "name": "projects/df-transactions/agent/intents/105b925b-b186-4f5d-8bde-a9a782a0fa9f",
        "displayName": "Sign In Complete"
      },
      "intentDetectionConfidence": 1,
      "languageCode": "en"
    },
    "originalDetectIntentRequest": {
      "source": "google",
      "version": "2",
      "payload": {
        "user": {
          "locale": "en-US",
          "lastSeen": "2019-09-23T19:49:18Z",
          "userVerificationStatus": "VERIFIED"
        },
        "conversation": {
          "conversationId": "ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy",
          "type": "ACTIVE",
          "conversationToken": "[]"
        },
        "inputs": [
          {
            "intent": "actions.intent.SIGN_IN",
            "rawInputs": [
              {
                "inputType": "KEYBOARD"
              }
            ],
            "arguments": [
              {
                "name": "SIGN_IN",
                "extension": {
                  "@type": "type.googleapis.com/google.actions.v2.SignInValue",
                  "status": "OK"
                }
              },
              {
                "name": "text"
              }
            ]
          }
        ],
        "surface": {
          "capabilities": [
            {
              "name": "actions.capability.WEB_BROWSER"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.ACCOUNT_LINKING"
            },
            {
              "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
            },
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            }
          ]
        },
        "availableSurfaces": [
          {
            "capabilities": [
              {
                "name": "actions.capability.WEB_BROWSER"
              },
              {
                "name": "actions.capability.AUDIO_OUTPUT"
              },
              {
                "name": "actions.capability.SCREEN_OUTPUT"
              }
            ]
          }
        ]
      }
    },
    "session": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy"
  }
```

### JSON

```
{
  "user": {
    "locale": "en-US",
    "lastSeen": "2019-11-11T23:55:52Z",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHGFwStZlYaQ9YT8rg9t_idVsxZrku1pUDrEbGSJmSUMatVdPwPEEQSCe1IwIBoN4sS4Weyn9pmgetEgbsWgw3JSvQmw",
    "type": "ACTIVE",
    "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\"}}"
  },
  "inputs": [
    {
      "intent": "actions.intent.SIGN_IN",
      "rawInputs": [
        {}
      ],
      "arguments": [
        {
          "name": "SIGN_IN",
          "extension": {
            "@type": "type.googleapis.com/google.actions.v2.SignInValue",
            "status": "OK"
          }
        },
        {
          "name": "text"
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      },
      {
        "name": "actions.capability.SCREEN_OUTPUT"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      }
    ]
  },
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        },
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        },
        {
          "name": "actions.capability.WEB_BROWSER"
        }
      ]
    }
  ]
}
```

### 4. Propose the order

Once you've built an order, you must present it to the user to confirm or
reject. Request the `actions.intent.TRANSACTION_DECISION`
intent and provide the order that you built with the user's stored payment
information.

> [!NOTE]
> **Note:** The data presented in the "cart preview card" is rendered as-is according to your `Order`. Our policy requires that the data presented is itemized, accurate, and consistent with what the user requested during their dialog. Please note that Google does not calculate fields like taxes, fees, and others, but rather takes them directly from what you pass into the `actions.intent.TRANSACTION_DECISION` intent.

#### User Experience

When you request the `actions.intent.TRANSACTION_DECISION` intent, the Assistant
initiates a built-in experience in which the `Order` you passed is
rendered directly onto a "cart preview card". The user can say "place order",
decline the transaction, change a payment option like the credit card or
address, or request to change the order's contents.

The user may also request changes to the order at this point. In this case,
you should make sure your fulfillment can handle order change requests after
finishing the cart assembly experience.

#### Fulfillment

When you request the
`actions.intent.TRANSACTION_DECISION` intent, you'll create a
`TransactionDecision` that contains the `Order`
as well as `orderOptions` and `paymentParameters`. Your `paymentParameters`
object includes a `merchantPaymentOption` with fields that describe the user's
payment method.

The following code shows an example `TransactionsDecision` for an order, paid
using a Visa credit card:

### Node.js

```javascript
conv.ask(new TransactionDecision({
  orderOptions: {
    userInfoOptions: {
      userInfoProperties: [
        'EMAIL',
      ],
    },
  },
  paymentParameters: {
    merchantPaymentOption: {
      defaultMerchantPaymentMethodId: '12345678',
      managePaymentMethodUrl: 'https://example.com/managePayment',
      merchantPaymentMethod: [
        {
          paymentMethodDisplayInfo: {
            paymentMethodDisplayName: 'VISA **** 1234',
            paymentType: 'PAYMENT_CARD',
          },
          paymentMethodGroup: 'Payment method group',
          paymentMethodId: '12345678',
          paymentMethodStatus: {
            status: 'STATUS_OK',
            statusMessage: 'Status message',
          },
        },
      ],
    },
  },
  presentationOptions: {
    actionDisplayName: 'PLACE_ORDER',
  },
  order: order,
}));
```

### Node.js

```javascript
conv.ask(new TransactionDecision({
  orderOptions: {
    userInfoOptions: {
      userInfoProperties: [
        'EMAIL',
      ],
    },
  },
  paymentParameters: {
    merchantPaymentOption: {
      defaultMerchantPaymentMethodId: '12345678',
      managePaymentMethodUrl: 'https://example.com/managePayment',
      merchantPaymentMethod: [
        {
          paymentMethodDisplayInfo: {
            paymentMethodDisplayName: 'VISA **** 1234',
            paymentType: 'PAYMENT_CARD',
          },
          paymentMethodGroup: 'Payment method group',
          paymentMethodId: '12345678',
          paymentMethodStatus: {
            status: 'STATUS_OK',
            statusMessage: 'Status message',
          },
        },
      ],
    },
  },
  presentationOptions: {
    actionDisplayName: 'PLACE_ORDER',
  },
  order: order,
}));
```

### Java

```java
// Create order options
OrderOptionsV3 orderOptions = new OrderOptionsV3()
    .setUserInfoOptions(new UserInfoOptions()
        .setUserInfoProperties(Collections.singletonList("EMAIL")));

// Create presentation options
PresentationOptionsV3 presentationOptions = new PresentationOptionsV3()
    .setActionDisplayName("PLACE_ORDER");

// Create payment parameters
MerchantPaymentMethod merchantPaymentMethod = new MerchantPaymentMethod()
    .setPaymentMethodDisplayInfo(new PaymentMethodDisplayInfo()
        .setPaymentMethodDisplayName("VISA **** 1234")
        .setPaymentType("PAYMENT_CARD"))
    .setPaymentMethodGroup("Payment method group")
    .setPaymentMethodId("12345678")
    .setPaymentMethodStatus(new PaymentMethodStatus()
        .setStatus("STATUS_OK")
        .setStatusMessage("Status message"));

MerchantPaymentOption merchantPaymentOption = new MerchantPaymentOption()
    .setDefaultMerchantPaymentMethodId("12345678")
    .setManagePaymentMethodUrl("https://example.com/managePayment")
    .setMerchantPaymentMethod(Collections.singletonList(merchantPaymentMethod));

paymentParameters.setMerchantPaymentOption(merchantPaymentOption);

return getResponseBuilder(request)
    .add(new TransactionDecision()
        .setOrder(order)
        .setOrderOptions(orderOptions)
        .setPresentationOptions(presentationOptions)
        .setPaymentParameters(paymentParameters)
    )
    .build();
```

### Java

```java
// Create order options
OrderOptionsV3 orderOptions = new OrderOptionsV3()
    .setUserInfoOptions(new UserInfoOptions()
        .setUserInfoProperties(Collections.singletonList("EMAIL")));

// Create presentation options
PresentationOptionsV3 presentationOptions = new PresentationOptionsV3()
    .setActionDisplayName("PLACE_ORDER");

// Create payment parameters
MerchantPaymentMethod merchantPaymentMethod = new MerchantPaymentMethod()
    .setPaymentMethodDisplayInfo(new PaymentMethodDisplayInfo()
        .setPaymentMethodDisplayName("VISA **** 1234")
        .setPaymentType("PAYMENT_CARD"))
    .setPaymentMethodGroup("Payment method group")
    .setPaymentMethodId("12345678")
    .setPaymentMethodStatus(new PaymentMethodStatus()
        .setStatus("STATUS_OK")
        .setStatusMessage("Status message"));

MerchantPaymentOption merchantPaymentOption = new MerchantPaymentOption()
    .setDefaultMerchantPaymentMethodId("12345678")
    .setManagePaymentMethodUrl("https://example.com/managePayment")
    .setMerchantPaymentMethod(Collections.singletonList(merchantPaymentMethod));

paymentParameters.setMerchantPaymentOption(merchantPaymentOption);

return getResponseBuilder(request)
    .add(new TransactionDecision()
        .setOrder(order)
        .setOrderOptions(orderOptions)
        .setPresentationOptions(presentationOptions)
        .setPaymentParameters(paymentParameters)
    )
    .build();
```

### JSON

```
{
    "payload": {
      "google": {
        "expectUserResponse": true,
        "richResponse": {
          "items": [
            {
              "simpleResponse": {
                "textToSpeech": "Transaction Decision Placeholder."
              }
            }
          ]
        },
        "systemIntent": {
          "intent": "actions.intent.TRANSACTION_DECISION",
          "data": {
            "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionDecisionValueSpec",
            "orderOptions": {
              "userInfoOptions": {
                "userInfoProperties": [
                  "EMAIL"
                ]
              }
            },
            "paymentParameters": {
              "merchantPaymentOption": {
                "defaultMerchantPaymentMethodId": "12345678",
                "managePaymentMethodUrl": "https://example.com/managePayment",
                "merchantPaymentMethod": [
                  {
                    "paymentMethodDisplayInfo": {
                      "paymentMethodDisplayName": "VISA **** 1234",
                      "paymentType": "PAYMENT_CARD"
                    },
                    "paymentMethodGroup": "Payment method group",
                    "paymentMethodId": "12345678",
                    "paymentMethodStatus": {
                      "status": "STATUS_OK",
                      "statusMessage": "Status message"
                    }
                  }
                ]
              }
            },
            "presentationOptions": {
              "actionDisplayName": "PLACE_ORDER"
            },
            "order": {
              "createTime": "2019-09-24T18:00:00.877Z",
              "lastUpdateTime": "2019-09-24T18:00:00.877Z",
              "merchantOrderId": "ORDER_ID",
              "userVisibleOrderId": "ORDER_ID",
              "transactionMerchant": {
                "id": "http://www.example.com",
                "name": "Example Merchant"
              },
              "contents": {
                "lineItems": [
                  {
                    "id": "LINE_ITEM_ID",
                    "name": "Pizza",
                    "description": "A four cheese pizza.",
                    "priceAttributes": [
                      {
                        "type": "REGULAR",
                        "name": "Item Price",
                        "state": "ACTUAL",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 8990000
                        },
                        "taxIncluded": true
                      },
                      {
                        "type": "TOTAL",
                        "name": "Total Price",
                        "state": "ACTUAL",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 9990000
                        },
                        "taxIncluded": true
                      }
                    ],
                    "notes": [
                      "Extra cheese."
                    ],
                    "purchase": {
                      "quantity": 1,
                      "unitMeasure": {
                        "measure": 1,
                        "unit": "POUND"
                      },
                      "itemOptions": [
                        {
                          "id": "ITEM_OPTION_ID",
                          "name": "Pepperoni",
                          "prices": [
                            {
                              "type": "REGULAR",
                              "state": "ACTUAL",
                              "name": "Item Price",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": 1000000
                              },
                              "taxIncluded": true
                            },
                            {
                              "type": "TOTAL",
                              "name": "Total Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": 1000000
                              },
                              "taxIncluded": true
                            }
                          ],
                          "note": "Extra pepperoni",
                          "quantity": 1,
                          "subOptions": []
                        }
                      ]
                    }
                  }
                ]
              },
              "buyerInfo": {
                "email": "janedoe@gmail.com",
                "firstName": "Jane",
                "lastName": "Doe",
                "displayName": "Jane Doe"
              },
              "priceAttributes": [
                {
                  "type": "SUBTOTAL",
                  "name": "Subtotal",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 9990000
                  },
                  "taxIncluded": true
                },
                {
                  "type": "DELIVERY",
                  "name": "Delivery",
                  "state": "ACTUAL",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 2000000
                  },
                  "taxIncluded": true
                },
                {
                  "type": "TAX",
                  "name": "Tax",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 3780000
                  },
                  "taxIncluded": true
                },
                {
                  "type": "TOTAL",
                  "name": "Total Price",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 15770000
                  },
                  "taxIncluded": true
                }
              ],
              "followUpActions": [
                {
                  "type": "VIEW_DETAILS",
                  "title": "View details",
                  "openUrlAction": {
                    "url": "http://example.com"
                  }
                },
                {
                  "type": "CALL",
                  "title": "Call us",
                  "openUrlAction": {
                    "url": "tel:+16501112222"
                  }
                },
                {
                  "type": "EMAIL",
                  "title": "Email us",
                  "openUrlAction": {
                    "url": "mailto:person@example.com"
                  }
                }
              ],
              "termsOfServiceUrl": "http://www.example.com",
              "note": "Sale event",
              "promotions": [
                {
                  "coupon": "COUPON_CODE"
                }
              ],
              "purchase": {
                "status": "CREATED",
                "userVisibleStatusLabel": "CREATED",
                "type": "FOOD",
                "returnsInfo": {
                  "isReturnable": false,
                  "daysToReturn": 1,
                  "policyUrl": "http://www.example.com"
                },
                "fulfillmentInfo": {
                  "id": "FULFILLMENT_SERVICE_ID",
                  "fulfillmentType": "DELIVERY",
                  "expectedFulfillmentTime": {
                    "timeIso8601": "2019-09-25T18:00:00.877Z"
                  },
                  "location": {
                    "city": "MOUNTAIN VIEW",
                    "coordinates": {
                      "latitude": 37.432524,
                      "longitude": -122.098545
                    },
                    "phoneNumber": "+1 123-456-7890",
                    "postalAddress": {
                      "addressLines": [
                        "1600 AMPHITHEATRE PKWY"
                      ],
                      "administrativeArea": "CA",
                      "locality": "MOUNTAIN VIEW",
                      "postalCode": "94043-1351",
                      "recipients": [
                        "John Doe"
                      ],
                      "regionCode": "US"
                    },
                    "zipCode": "94043-1351"
                  },
                  "price": {
                    "type": "REGULAR",
                    "name": "Delivery Price",
                    "state": "ACTUAL",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": 2000000
                    },
                    "taxIncluded": true
                  },
                  "fulfillmentContact": {
                    "email": "johnjohnson@gmail.com",
                    "firstName": "John",
                    "lastName": "Johnson",
                    "displayName": "John Johnson"
                  }
                },
                "purchaseLocationType": "ONLINE_PURCHASE"
              }
            }
          }
        }
      }
    },
    "outputContexts": [
      {
        "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/_actions_on_google",
        "lifespanCount": 99,
        "parameters": {
          "data": "{\"location\":{\"coordinates\":{\"latitude\":37.432524,\"longitude\":-122.098545},\"zipCode\":\"94043-1351\",\"city\":\"MOUNTAIN VIEW\",\"postalAddress\":{\"regionCode\":\"US\",\"postalCode\":\"94043-1351\",\"administrativeArea\":\"CA\",\"locality\":\"MOUNTAIN VIEW\",\"addressLines\":[\"1600 AMPHITHEATRE PKWY\"],\"recipients\":[\"John Doe\"]},\"phoneNumber\":\"+1 123-456-7890\"},\"latestOrderId\":\"ORDER_ID\"}"
        }
      }
    ]
  }
```

### JSON

```
{
  "expectUserResponse": true,
  "expectedInputs": [
    {
      "possibleIntents": [
        {
          "intent": "actions.intent.TRANSACTION_DECISION",
          "inputValueData": {
            "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionDecisionValueSpec",
            "orderOptions": {
              "userInfoOptions": {
                "userInfoProperties": [
                  "EMAIL"
                ]
              }
            },
            "paymentParameters": {
              "merchantPaymentOption": {
                "defaultMerchantPaymentMethodId": "12345678",
                "managePaymentMethodUrl": "https://example.com/managePayment",
                "merchantPaymentMethod": [
                  {
                    "paymentMethodDisplayInfo": {
                      "paymentMethodDisplayName": "VISA **** 1234",
                      "paymentType": "PAYMENT_CARD"
                    },
                    "paymentMethodGroup": "Payment method group",
                    "paymentMethodId": "12345678",
                    "paymentMethodStatus": {
                      "status": "STATUS_OK",
                      "statusMessage": "Status message"
                    }
                  }
                ]
              }
            },
            "presentationOptions": {
              "actionDisplayName": "PLACE_ORDER"
            },
            "order": {
              "createTime": "2019-09-24T18:00:00.877Z",
              "lastUpdateTime": "2019-09-24T18:00:00.877Z",
              "merchantOrderId": "ORDER_ID",
              "userVisibleOrderId": "ORDER_ID",
              "transactionMerchant": {
                "id": "http://www.example.com",
                "name": "Example Merchant"
              },
              "contents": {
                "lineItems": [
                  {
                    "id": "LINE_ITEM_ID",
                    "name": "Pizza",
                    "description": "A four cheese pizza.",
                    "priceAttributes": [
                      {
                        "type": "REGULAR",
                        "name": "Item Price",
                        "state": "ACTUAL",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 8990000
                        },
                        "taxIncluded": true
                      },
                      {
                        "type": "TOTAL",
                        "name": "Total Price",
                        "state": "ACTUAL",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 9990000
                        },
                        "taxIncluded": true
                      }
                    ],
                    "notes": [
                      "Extra cheese."
                    ],
                    "purchase": {
                      "quantity": 1,
                      "unitMeasure": {
                        "measure": 1,
                        "unit": "POUND"
                      },
                      "itemOptions": [
                        {
                          "id": "ITEM_OPTION_ID",
                          "name": "Pepperoni",
                          "prices": [
                            {
                              "type": "REGULAR",
                              "state": "ACTUAL",
                              "name": "Item Price",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": 1000000
                              },
                              "taxIncluded": true
                            },
                            {
                              "type": "TOTAL",
                              "name": "Total Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": 1000000
                              },
                              "taxIncluded": true
                            }
                          ],
                          "note": "Extra pepperoni",
                          "quantity": 1,
                          "subOptions": []
                        }
                      ]
                    }
                  }
                ]
              },
              "buyerInfo": {
                "email": "janedoe@gmail.com",
                "firstName": "Jane",
                "lastName": "Doe",
                "displayName": "Jane Doe"
              },
              "priceAttributes": [
                {
                  "type": "SUBTOTAL",
                  "name": "Subtotal",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 9990000
                  },
                  "taxIncluded": true
                },
                {
                  "type": "DELIVERY",
                  "name": "Delivery",
                  "state": "ACTUAL",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 2000000
                  },
                  "taxIncluded": true
                },
                {
                  "type": "TAX",
                  "name": "Tax",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 3780000
                  },
                  "taxIncluded": true
                },
                {
                  "type": "TOTAL",
                  "name": "Total Price",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": 15770000
                  },
                  "taxIncluded": true
                }
              ],
              "followUpActions": [
                {
                  "type": "VIEW_DETAILS",
                  "title": "View details",
                  "openUrlAction": {
                    "url": "http://example.com"
                  }
                },
                {
                  "type": "CALL",
                  "title": "Call us",
                  "openUrlAction": {
                    "url": "tel:+16501112222"
                  }
                },
                {
                  "type": "EMAIL",
                  "title": "Email us",
                  "openUrlAction": {
                    "url": "mailto:person@example.com"
                  }
                }
              ],
              "termsOfServiceUrl": "http://www.example.com",
              "note": "Sale event",
              "promotions": [
                {
                  "coupon": "COUPON_CODE"
                }
              ],
              "purchase": {
                "status": "CREATED",
                "userVisibleStatusLabel": "CREATED",
                "type": "FOOD",
                "returnsInfo": {
                  "isReturnable": false,
                  "daysToReturn": 1,
                  "policyUrl": "http://www.example.com"
                },
                "fulfillmentInfo": {
                  "id": "FULFILLMENT_SERVICE_ID",
                  "fulfillmentType": "DELIVERY",
                  "expectedFulfillmentTime": {
                    "timeIso8601": "2019-09-25T18:00:00.877Z"
                  },
                  "location": {
                    "coordinates": {
                      "latitude": 37.421578499999995,
                      "longitude": -122.0837816
                    },
                    "zipCode": "94043-1351",
                    "city": "MOUNTAIN VIEW",
                    "postalAddress": {
                      "regionCode": "US",
                      "postalCode": "94043-1351",
                      "administrativeArea": "CA",
                      "locality": "MOUNTAIN VIEW",
                      "addressLines": [
                        "1600 AMPHITHEATRE PKWY"
                      ],
                      "recipients": [
                        "John Doe"
                      ]
                    },
                    "phoneNumber": "+1 123-456-7890"
                  },
                  "price": {
                    "type": "REGULAR",
                    "name": "Delivery Price",
                    "state": "ACTUAL",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": 2000000
                    },
                    "taxIncluded": true
                  },
                  "fulfillmentContact": {
                    "email": "johnjohnson@gmail.com",
                    "firstName": "John",
                    "lastName": "Johnson",
                    "displayName": "John Johnson"
                  }
                },
                "purchaseLocationType": "ONLINE_PURCHASE"
              }
            }
          }
        }
      ],
      "inputPrompt": {
        "richInitialPrompt": {
          "items": [
            {
              "simpleResponse": {
                "textToSpeech": "Transaction Decision Placeholder."
              }
            }
          ]
        }
      }
    }
  ],
  "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\",\"location\":{\"coordinates\":{\"latitude\":37.421578499999995,\"longitude\":-122.0837816},\"zipCode\":\"94043-1351\",\"city\":\"MOUNTAIN VIEW\",\"postalAddress\":{\"regionCode\":\"US\",\"postalCode\":\"94043-1351\",\"administrativeArea\":\"CA\",\"locality\":\"MOUNTAIN VIEW\",\"addressLines\":[\"1600 AMPHITHEATRE PKWY\"],\"recipients\":[\"John Doe\"]},\"phoneNumber\":\"+1 123-456-7890\"},\"latestOrderId\":\"ORDER_ID\"}}"
}
```

#### Handle the user's decision

After the Assistant fulfills the intent, it sends your fulfillment a request
with the `actions_intent_TRANSACTION_DECISION` intent with the user's answer to
the transaction decision. You will receive an
`Argument` containing a TransactionDecisionValue. This value will contain the following:

- `transactionDecision` - The user's decision regarding the proposed order. The possible values are `ORDER_ACCEPTED`, `ORDER_REJECTED`, `DELIVERY_ADDRESS_UPDATED`, `CART_CHANGE_REQUESTED`, and `USER_CANNOT_TRANSACT`.
- `deliveryAddress` - An updated delivery address, in the event that the user changed their delivery address. In this case, the value of `transactionDecision` will be `DELIVERY_ADDRESS_UPDATED`.

To properly handle this request, declare a Dialogflow intent that's triggered by
the `actions_intent_TRANSACTION_DECISION` event. When triggered, handle it in
your fulfillment:

### Node.js

```javascript
const arg = conv.arguments.get('TRANSACTION_DECISION_VALUE');
if (arg && arg.transactionDecision === 'ORDER_ACCEPTED') {
  console.log('Order accepted.');
  const order = arg.order;
}
```

### Node.js

```javascript
const arg = conv.arguments.get('TRANSACTION_DECISION_VALUE');
if (arg && arg.transactionDecision === 'ORDER_ACCEPTED') {
  console.log('Order accepted.');
  const order = arg.order;
}
```

### Java

```java
// Check transaction decision value
Argument transactionDecisionValue = request
    .getArgument("TRANSACTION_DECISION_VALUE");
Map<String, Object> extension = null;
if (transactionDecisionValue != null) {
  extension = transactionDecisionValue.getExtension();
}

String transactionDecision = null;
if (extension != null) {
  transactionDecision = (String) extension.get("transactionDecision");
}
ResponseBuilder responseBuilder = getResponseBuilder(request);
if ((transactionDecision != null && transactionDecision.equals("ORDER_ACCEPTED"))) {
  OrderV3 order = ((OrderV3) extension.get("order"));
}
```

### Java

```java
// Check transaction decision value
Argument transactionDecisionValue = request
    .getArgument("TRANSACTION_DECISION_VALUE");
Map<String, Object> extension = null;
if (transactionDecisionValue != null) {
  extension = transactionDecisionValue.getExtension();
}

String transactionDecision = null;
if (extension != null) {
  transactionDecision = (String) extension.get("transactionDecision");
}
ResponseBuilder responseBuilder = getResponseBuilder(request);
if ((transactionDecision != null && transactionDecision.equals("ORDER_ACCEPTED"))) {
  OrderV3 order = ((OrderV3) extension.get("order"));
}
```

### JSON

```
{
    "responseId": "aba44717-4236-4602-af55-e5ae1fc2d97a-594de0a7",
    "queryResult": {
      "queryText": "actions_intent_TRANSACTION_DECISION",
      "action": "transaction.decision.complete",
      "parameters": {},
      "allRequiredParamsPresent": true,
      "fulfillmentText": "Failed to get transaction decision",
      "fulfillmentMessages": [
        {
          "text": {
            "text": [
              "Failed to get transaction decision"
            ]
          }
        }
      ],
      "outputContexts": [
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_media_response_audio"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_audio_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_account_linking"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_screen_output"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_capability_web_browser"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/google_assistant_input_type_voice"
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/_actions_on_google",
          "lifespanCount": 97,
          "parameters": {
            "data": "{\"location\":{\"coordinates\":{\"latitude\":37.432524,\"longitude\":-122.098545},\"zipCode\":\"94043-1351\",\"city\":\"MOUNTAIN VIEW\",\"postalAddress\":{\"regionCode\":\"US\",\"postalCode\":\"94043-1351\",\"administrativeArea\":\"CA\",\"locality\":\"MOUNTAIN VIEW\",\"addressLines\":[\"1600 AMPHITHEATRE PKWY\"],\"recipients\":[\"John Doe\"]},\"phoneNumber\":\"+1 123-456-7890\"}}"
          }
        },
        {
          "name": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy/contexts/actions_intent_transaction_decision",
          "parameters": {
            "TRANSACTION_DECISION_VALUE": {
              "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionDecisionValue",
              "transactionDecision": "ORDER_ACCEPTED",
              "order": {
                "createTime": "2019-09-24T18:00:00.877Z",
                "lastUpdateTime": "2019-09-24T18:00:00.877Z",
                "merchantOrderId": "ORDER_ID",
                "userVisibleOrderId": "ORDER_ID",
                "transactionMerchant": {
                  "id": "http://www.example.com",
                  "name": "Example Merchant"
                },
                "contents": {
                  "lineItems": [
                    {
                      "id": "LINE_ITEM_ID",
                      "name": "Pizza",
                      "description": "A four cheese pizza.",
                      "priceAttributes": [
                        {
                          "type": "REGULAR",
                          "name": "Line Item Price",
                          "state": "ACTUAL",
                          "amount": {
                            "currencyCode": "USD",
                            "amountInMicros": 8990000
                          },
                          "taxIncluded": true
                        },
                        {
                          "type": "TOTAL",
                          "name": "Total Price",
                          "state": "ACTUAL",
                          "amount": {
                            "currencyCode": "USD",
                            "amountInMicros": 9990000
                          },
                          "taxIncluded": true
                        }
                      ],
                      "notes": [
                        "Extra cheese."
                      ],
                      "purchase": {
                        "quantity": 1,
                        "unitMeasure": {
                          "measure": 1,
                          "unit": "POUND"
                        },
                        "itemOptions": [
                          {
                            "id": "ITEM_OPTION_ID",
                            "name": "Pepperoni",
                            "prices": [
                              {
                                "type": "REGULAR",
                                "state": "ACTUAL",
                                "name": "Item Price",
                                "amount": {
                                  "currencyCode": "USD",
                                  "amountInMicros": 1000000
                                },
                                "taxIncluded": true
                              },
                              {
                                "type": "TOTAL",
                                "name": "Total Price",
                                "state": "ACTUAL",
                                "amount": {
                                  "currencyCode": "USD",
                                  "amountInMicros": 1000000
                                },
                                "taxIncluded": true
                              }
                            ],
                            "note": "Extra pepperoni",
                            "quantity": 1,
                            "subOptions": []
                          }
                        ]
                      }
                    }
                  ]
                },
                "buyerInfo": {
                  "email": "janedoe@gmail.com",
                  "firstName": "Jane",
                  "lastName": "Doe",
                  "displayName": "Jane Doe"
                },
                "priceAttributes": [
                  {
                    "type": "SUBTOTAL",
                    "name": "Subtotal",
                    "state": "ESTIMATE",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": 9990000
                    },
                    "taxIncluded": true
                  },
                  {
                    "type": "DELIVERY",
                    "name": "Delivery",
                    "state": "ACTUAL",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": 2000000
                    },
                    "taxIncluded": true
                  },
                  {
                    "type": "TAX",
                    "name": "Tax",
                    "state": "ESTIMATE",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": 3780000
                    },
                    "taxIncluded": true
                  },
                  {
                    "type": "TOTAL",
                    "name": "Total Price",
                    "state": "ESTIMATE",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": 15770000
                    },
                    "taxIncluded": true
                  }
                ],
                "followUpActions": [
                  {
                    "type": "VIEW_DETAILS",
                    "title": "View details",
                    "openUrlAction": {
                      "url": "http://example.com"
                    }
                  },
                  {
                    "type": "CALL",
                    "title": "Call us",
                    "openUrlAction": {
                      "url": "tel:+16501112222"
                    }
                  },
                  {
                    "type": "EMAIL",
                    "title": "Email us",
                    "openUrlAction": {
                      "url": "mailto:person@example.com"
                    }
                  }
                ],
                "termsOfServiceUrl": "www.example.com",
                "note": "Sale event",
                "promotions": [
                  {
                    "coupon": "COUPON_CODE"
                  }
                ],
                "purchase": {
                  "status": "CREATED",
                  "userVisibleStatusLabel": "CREATED",
                  "type": "FOOD",
                  "returnsInfo": {
                    "isReturnable": false,
                    "daysToReturn": 1,
                    "policyUrl": "http://www.example.com"
                  },
                  "fulfillmentInfo": {
                    "id": "FULFILLMENT_SERVICE_ID",
                    "fulfillmentType": "DELIVERY",
                    "expectedFulfillmentTime": {
                      "timeIso8601": "2019-09-25T18:00:00.877Z"
                    },
                    "location": {},
                    "price": {
                      "type": "REGULAR",
                      "name": "Delivery Price",
                      "state": "ACTUAL",
                      "amount": {
                        "currencyCode": "USD",
                        "amountInMicros": 2000000
                      },
                      "taxIncluded": true
                    },
                    "fulfillmentContact": {
                      "email": "johnjohnson@gmail.com",
                      "firstName": "John",
                      "lastName": "Johnson",
                      "displayName": "John Johnson"
                    }
                  },
                  "purchaseLocationType": "ONLINE_PURCHASE"
                }
              }
            },
            "text": ""
          }
        }
      ],
      "intent": {
        "name": "projects/df-transactions/agent/intents/fd16d86b-60db-4d19-a683-5b52a22f4795",
        "displayName": "Transaction Decision Complete"
      },
      "intentDetectionConfidence": 1,
      "languageCode": "en"
    },
    "originalDetectIntentRequest": {
      "source": "google",
      "version": "2",
      "payload": {
        "user": {
          "locale": "en-US",
          "lastSeen": "2019-09-23T19:49:32Z",
          "userVerificationStatus": "VERIFIED"
        },
        "conversation": {
          "conversationId": "ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy",
          "type": "ACTIVE",
          "conversationToken": "[\"merchant_payment\"]"
        },
        "inputs": [
          {
            "intent": "actions.intent.TRANSACTION_DECISION",
            "rawInputs": [
              {
                "inputType": "KEYBOARD"
              }
            ],
            "arguments": [
              {
                "name": "TRANSACTION_DECISION_VALUE",
                "extension": {
                  "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionDecisionValue",
                  "transactionDecision": "ORDER_ACCEPTED",
                  "order": {
                    "createTime": "2019-09-24T18:00:00.877Z",
                    "lastUpdateTime": "2019-09-24T19:00:00.877Z",
                    "merchantOrderId": "ORDER_ID",
                    "userVisibleOrderId": "ORDER_ID",
                    "transactionMerchant": {
                      "id": "http://www.example.com",
                      "name": "Example Merchant"
                    },
                    "contents": {
                      "lineItems": [
                        {
                          "id": "LINE_ITEM_ID",
                          "name": "Pizza",
                          "description": "A four cheese pizza.",
                          "priceAttributes": [
                            {
                              "type": "REGULAR",
                              "name": "Line Item Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": 8990000
                              },
                              "taxIncluded": true
                            },
                            {
                              "type": "TOTAL",
                              "name": "Total Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": 9990000
                              },
                              "taxIncluded": true
                            }
                          ],
                          "notes": [
                            "Extra cheese."
                          ],
                          "purchase": {
                            "quantity": 1,
                            "unitMeasure": {
                              "measure": 1,
                              "unit": "POUND"
                            },
                            "itemOptions": [
                              {
                                "id": "ITEM_OPTION_ID",
                                "name": "Pepperoni",
                                "prices": [
                                  {
                                    "type": "REGULAR",
                                    "state": "ACTUAL",
                                    "name": "Item Price",
                                    "amount": {
                                      "currencyCode": "USD",
                                      "amountInMicros": 1000000
                                    },
                                    "taxIncluded": true
                                  },
                                  {
                                    "type": "TOTAL",
                                    "name": "Total Price",
                                    "state": "ACTUAL",
                                    "amount": {
                                      "currencyCode": "USD",
                                      "amountInMicros": 1000000
                                    },
                                    "taxIncluded": true
                                  }
                                ],
                                "note": "Extra pepperoni",
                                "quantity": 1,
                                "subOptions": []
                              }
                            ]
                          }
                        }
                      ]
                    },
                    "buyerInfo": {
                      "email": "janedoe@gmail.com",
                      "firstName": "Jane",
                      "lastName": "Doe",
                      "displayName": "Jane Doe"
                    },
                    "priceAttributes": [
                      {
                        "type": "SUBTOTAL",
                        "name": "Subtotal",
                        "state": "ESTIMATE",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 9990000
                        },
                        "taxIncluded": true
                      },
                      {
                        "type": "DELIVERY",
                        "name": "Delivery",
                        "state": "ACTUAL",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 2000000
                        },
                        "taxIncluded": true
                      },
                      {
                        "type": "TAX",
                        "name": "Tax",
                        "state": "ESTIMATE",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 3780000
                        },
                        "taxIncluded": true
                      },
                      {
                        "type": "TOTAL",
                        "name": "Total Price",
                        "state": "ESTIMATE",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": 15770000
                        },
                        "taxIncluded": true
                      }
                    ],
                    "followUpActions": [
                      {
                        "type": "VIEW_DETAILS",
                        "title": "View details",
                        "openUrlAction": {
                          "url": "http://example.com"
                        }
                      },
                      {
                        "type": "CALL",
                        "title": "Call us",
                        "openUrlAction": {
                          "url": "tel:+16501112222"
                        }
                      },
                      {
                        "type": "EMAIL",
                        "title": "Email us",
                        "openUrlAction": {
                          "url": "mailto:person@example.com"
                        }
                      }
                    ],
                    "termsOfServiceUrl": "www.example.com",
                    "note": "Sale event",
                    "promotions": [
                      {
                        "coupon": "COUPON_CODE"
                      }
                    ],
                    "purchase": {
                      "status": "CREATED",
                      "userVisibleStatusLabel": "CREATED",
                      "type": "FOOD",
                      "returnsInfo": {
                        "isReturnable": false,
                        "daysToReturn": 1,
                        "policyUrl": "http://www.example.com"
                      },
                      "fulfillmentInfo": {
                        "id": "FULFILLMENT_SERVICE_ID",
                        "fulfillmentType": "DELIVERY",
                        "expectedFulfillmentTime": {
                          "timeIso8601": "2019-09-25T18:00:00.877Z"
                        },
                        "location": {},
                        "price": {
                          "type": "REGULAR",
                          "name": "Delivery Price",
                          "state": "ACTUAL",
                          "amount": {
                            "currencyCode": "USD",
                            "amountInMicros": 2000000
                          },
                          "taxIncluded": true
                        },
                        "fulfillmentContact": {
                          "email": "johnjohnson@gmail.com",
                          "firstName": "John",
                          "lastName": "Johnson",
                          "displayName": "John Johnson"
                        }
                      },
                      "purchaseLocationType": "ONLINE_PURCHASE"
                    }
                  }
                }
              },
              {
                "name": "text"
              }
            ]
          }
        ],
        "surface": {
          "capabilities": [
            {
              "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
            },
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            },
            {
              "name": "actions.capability.ACCOUNT_LINKING"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.WEB_BROWSER"
            }
          ]
        },
        "availableSurfaces": [
          {
            "capabilities": [
              {
                "name": "actions.capability.WEB_BROWSER"
              },
              {
                "name": "actions.capability.AUDIO_OUTPUT"
              },
              {
                "name": "actions.capability.SCREEN_OUTPUT"
              }
            ]
          }
        ]
      }
    },
    "session": "projects/df-transactions/agent/sessions/ABwppHGYEP2Fj7tJBxoaKMevL6lZ2rs063lOEWhSW5etZWVOoJe7Dzm_bLejRTYIYXL3D78ER7YvA5aN9Wpy"
  }
```

### JSON

```
{
  "user": {
    "locale": "en-US",
    "lastSeen": "2019-11-11T23:57:31Z",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHGFwStZlYaQ9YT8rg9t_idVsxZrku1pUDrEbGSJmSUMatVdPwPEEQSCe1IwIBoN4sS4Weyn9pmgetEgbsWgw3JSvQmw",
    "type": "ACTIVE",
    "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\",\"location\":{\"coordinates\":{\"latitude\":37.421578499999995,\"longitude\":-122.0837816},\"zipCode\":\"94043-1351\",\"city\":\"MOUNTAIN VIEW\",\"postalAddress\":{\"regionCode\":\"US\",\"postalCode\":\"94043-1351\",\"administrativeArea\":\"CA\",\"locality\":\"MOUNTAIN VIEW\",\"addressLines\":[\"1600 AMPHITHEATRE PKWY\"],\"recipients\":[\"John Doe\"]},\"phoneNumber\":\"+1 123-456-7890\"},\"latestOrderId\":\"ORDER_ID\"}}"
  },
  "inputs": [
    {
      "intent": "actions.intent.TRANSACTION_DECISION",
      "rawInputs": [
        {}
      ],
      "arguments": [
        {
          "name": "TRANSACTION_DECISION_VALUE",
          "extension": {
            "@type": "type.googleapis.com/google.actions.transactions.v3.TransactionDecisionValue",
            "transactionDecision": "ORDER_ACCEPTED",
            "order": {
              "googleOrderId": "05528125187071048269",
              "merchantOrderId": "ORDER_ID",
              "userVisibleOrderId": "ORDER_ID",
              "buyerInfo": {
                "email": "janedoe@example.com",
                "firstName": "Jane",
                "lastName": "Doe",
                "displayName": "Jane Doe"
              },
              "createTime": "2019-09-24T18:00:00.877Z",
              "lastUpdateTime": "2019-09-24T18:00:00.877Z",
              "transactionMerchant": {
                "id": "http://www.example.com",
                "name": "Example Merchant"
              },
              "contents": {
                "lineItems": [
                  {
                    "id": "LINE_ITEM_ID",
                    "name": "Pizza",
                    "priceAttributes": [
                      {
                        "type": "REGULAR",
                        "name": "Item Price",
                        "state": "ACTUAL",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": "8990000"
                        },
                        "taxIncluded": true
                      },
                      {
                        "type": "TOTAL",
                        "name": "Total Price",
                        "state": "ACTUAL",
                        "amount": {
                          "currencyCode": "USD",
                          "amountInMicros": "9990000"
                        },
                        "taxIncluded": true
                      }
                    ],
                    "description": "A four cheese pizza.",
                    "notes": [
                      "Extra cheese."
                    ],
                    "purchase": {
                      "quantity": 1,
                      "itemOptions": [
                        {
                          "id": "ITEM_OPTION_ID",
                          "name": "Pepperoni",
                          "prices": [
                            {
                              "type": "REGULAR",
                              "name": "Item Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": "1000000"
                              },
                              "taxIncluded": true
                            },
                            {
                              "type": "TOTAL",
                              "name": "Total Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": "1000000"
                              },
                              "taxIncluded": true
                            }
                          ],
                          "note": "Extra pepperoni",
                          "quantity": 1
                        }
                      ],
                      "unitMeasure": {
                        "measure": 1,
                        "unit": "POUND"
                      }
                    },
                    "vertical": {
                      "@type": "type.googleapis.com/google.actions.orders.v3.verticals.purchase.PurchaseItemExtension",
                      "quantity": 1,
                      "itemOptions": [
                        {
                          "id": "ITEM_OPTION_ID",
                          "name": "Pepperoni",
                          "prices": [
                            {
                              "type": "REGULAR",
                              "name": "Item Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": "1000000"
                              },
                              "taxIncluded": true
                            },
                            {
                              "type": "TOTAL",
                              "name": "Total Price",
                              "state": "ACTUAL",
                              "amount": {
                                "currencyCode": "USD",
                                "amountInMicros": "1000000"
                              },
                              "taxIncluded": true
                            }
                          ],
                          "note": "Extra pepperoni",
                          "quantity": 1
                        }
                      ],
                      "unitMeasure": {
                        "measure": 1,
                        "unit": "POUND"
                      }
                    }
                  }
                ]
              },
              "priceAttributes": [
                {
                  "type": "SUBTOTAL",
                  "name": "Subtotal",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": "9990000"
                  },
                  "taxIncluded": true
                },
                {
                  "type": "DELIVERY",
                  "name": "Delivery",
                  "state": "ACTUAL",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": "2000000"
                  },
                  "taxIncluded": true
                },
                {
                  "type": "TAX",
                  "name": "Tax",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": "3780000"
                  },
                  "taxIncluded": true
                },
                {
                  "type": "TOTAL",
                  "name": "Total Price",
                  "state": "ESTIMATE",
                  "amount": {
                    "currencyCode": "USD",
                    "amountInMicros": "15770000"
                  },
                  "taxIncluded": true
                }
              ],
              "followUpActions": [
                {
                  "type": "VIEW_DETAILS",
                  "title": "View details",
                  "openUrlAction": {
                    "url": "http://example.com"
                  }
                },
                {
                  "type": "CALL",
                  "title": "Call us",
                  "openUrlAction": {
                    "url": "tel:+16501112222"
                  }
                },
                {
                  "type": "EMAIL",
                  "title": "Email us",
                  "openUrlAction": {
                    "url": "mailto:person@example.com"
                  }
                }
              ],
              "termsOfServiceUrl": "http://www.example.com",
              "note": "Sale event",
              "paymentData": {
                "paymentResult": {
                  "merchantPaymentMethodId": "12345678"
                },
                "paymentInfo": {
                  "paymentMethodDisplayInfo": {
                    "paymentType": "PAYMENT_CARD",
                    "paymentMethodDisplayName": "VISA **** 1234"
                  },
                  "paymentMethodProvenance": "PAYMENT_METHOD_PROVENANCE_MERCHANT"
                }
              },
              "promotions": [
                {
                  "coupon": "COUPON_CODE"
                }
              ],
              "purchase": {
                "status": "CREATED",
                "type": "FOOD",
                "returnsInfo": {
                  "daysToReturn": 1,
                  "policyUrl": "http://www.example.com"
                },
                "fulfillmentInfo": {
                  "id": "FULFILLMENT_SERVICE_ID",
                  "fulfillmentType": "DELIVERY",
                  "expectedFulfillmentTime": {
                    "timeIso8601": "2019-09-25T18:00:00.877Z"
                  },
                  "location": {
                    "coordinates": {
                      "latitude": 37.421578499999995,
                      "longitude": -122.0837816
                    },
                    "zipCode": "94043-1351",
                    "city": "MOUNTAIN VIEW",
                    "postalAddress": {
                      "regionCode": "US",
                      "postalCode": "94043-1351",
                      "administrativeArea": "CA",
                      "locality": "MOUNTAIN VIEW",
                      "addressLines": [
                        "1600 AMPHITHEATRE PKWY"
                      ],
                      "recipients": [
                        "John Doe"
                      ]
                    },
                    "phoneNumber": "+1 123-456-7890"
                  },
                  "price": {
                    "type": "REGULAR",
                    "name": "Delivery Price",
                    "state": "ACTUAL",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": "2000000"
                    },
                    "taxIncluded": true
                  },
                  "fulfillmentContact": {
                    "email": "johnjohnson@gmail.com",
                    "firstName": "John",
                    "lastName": "Johnson",
                    "displayName": "John Johnson"
                  }
                },
                "purchaseLocationType": "ONLINE_PURCHASE",
                "userVisibleStatusLabel": "CREATED"
              },
              "vertical": {
                "@type": "type.googleapis.com/google.actions.orders.v3.verticals.purchase.PurchaseOrderExtension",
                "status": "CREATED",
                "type": "FOOD",
                "returnsInfo": {
                  "daysToReturn": 1,
                  "policyUrl": "http://www.example.com"
                },
                "fulfillmentInfo": {
                  "id": "FULFILLMENT_SERVICE_ID",
                  "fulfillmentType": "DELIVERY",
                  "expectedFulfillmentTime": {
                    "timeIso8601": "2019-09-25T18:00:00.877Z"
                  },
                  "location": {
                    "coordinates": {
                      "latitude": 37.421578499999995,
                      "longitude": -122.0837816
                    },
                    "zipCode": "94043-1351",
                    "city": "MOUNTAIN VIEW",
                    "postalAddress": {
                      "regionCode": "US",
                      "postalCode": "94043-1351",
                      "administrativeArea": "CA",
                      "locality": "MOUNTAIN VIEW",
                      "addressLines": [
                        "1600 AMPHITHEATRE PKWY"
                      ],
                      "recipients": [
                        "John Doe"
                      ]
                    },
                    "phoneNumber": "+1 123-456-7890"
                  },
                  "price": {
                    "type": "REGULAR",
                    "name": "Delivery Price",
                    "state": "ACTUAL",
                    "amount": {
                      "currencyCode": "USD",
                      "amountInMicros": "2000000"
                    },
                    "taxIncluded": true
                  },
                  "fulfillmentContact": {
                    "email": "johnjohnson@gmail.com",
                    "firstName": "John",
                    "lastName": "Johnson",
                    "displayName": "John Johnson"
                  }
                },
                "purchaseLocationType": "ONLINE_PURCHASE",
                "userVisibleStatusLabel": "CREATED"
              }
            }
          }
        },
        {
          "name": "text"
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      },
      {
        "name": "actions.capability.SCREEN_OUTPUT"
      }
    ]
  },
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        },
        {
          "name": "actions.capability.WEB_BROWSER"
        },
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        }
      ]
    }
  ]
}
```

### 5. Finalize the order and send a receipt

When the `actions.intent.TRANSACTION_DECISION` intent returns with a
`transactionDecision`
of `ORDER_ACCEPTED`, you must immediately perform whatever
processing is required to "confirm" the order (like persisting it in
your own database and charging the user).

You can end the conversation with this response, but you must include a [simple response](https://developers.google.com/assistant/df-asdk/simple_response)
to keep the conversation moving. When you provide this initial `orderUpdate`,
the user will see a "collapsed receipt card" along with the rest of your response.
This card will mirror the receipt that the user finds in their Order History.

During order confirmation, your order object can include a `userVisibleOrderId` which
is the ID that the user sees for the order. You can reuse your `merchantOrderId`
for this field.

Part of the [OrderUpdate](https://developers.google.com/assistant/conversational/webhook/reference/rest/Shared.Types/AppResponse#orderupdate)
object will need to contain a
follow-up [action](https://developers.google.com/assistant/conversational/webhook/reference/rest/Shared.Types/AppResponse#action)
object, which manifest as URL buttons at the bottom of the order details that
the user can find in their Assistant Order History.

> [!NOTE]
> **Note:** Your Action's order updates must meet the following minimum requirements:
>
> - You must provide, at a minimum, a [`VIEW_DETAILS`](https://developers.google.com/assistant/conversational/webhook/reference/rest/Shared.Types/ActionType) follow-up Action with each order. This should contain a deep-link to the representation of the order on your mobile app or website.
> - You must also send a formal receipt over email that meets all legal requirements for conducting a transaction, in addition to the receipt card in your Action's conversation.

#### Fulfillment

### Node.js

```javascript
// Set lastUpdateTime and update status of order
const order = arg.order;
order.lastUpdateTime = '2019-09-24T19:00:00.877Z';
order.purchase.status = 'CONFIRMED';
order.purchase.userVisibleStatusLabel = 'Order confirmed';

// Send synchronous order update
conv.ask(`Transaction completed! Your order`
+ ` ${conv.data.latestOrderId} is all set!`);
conv.ask(new Suggestions('send order update'));
conv.ask(new OrderUpdate({
  type: 'SNAPSHOT',
  reason: 'Reason string',
  order: order,
}));
```

### Node.js

```javascript
// Set lastUpdateTime and update status of order
const order = arg.order;
order.lastUpdateTime = '2019-09-24T19:00:00.877Z';
order.purchase.status = 'CONFIRMED';
order.purchase.userVisibleStatusLabel = 'Order confirmed';

// Send synchronous order update
conv.ask(`Transaction completed! Your order `
+ `${conv.data.latestOrderId} is all set!`);
conv.ask(new Suggestions('send order update'));
conv.ask(new OrderUpdate({
  type: 'SNAPSHOT',
  reason: 'Reason string',
  order: order,
}));
```

### Java

```java
OrderV3 order = ((OrderV3) extension.get("order"));
order.setLastUpdateTime("2019-09-24T19:00:00.877Z");

// Update order status
PurchaseOrderExtension purchaseOrderExtension = order.getPurchase();
purchaseOrderExtension.setStatus("CONFIRMED");
purchaseOrderExtension.setUserVisibleStatusLabel("Order confirmed");
order.setPurchase(purchaseOrderExtension);

// Order update
OrderUpdateV3 orderUpdate = new OrderUpdateV3()
    .setType("SNAPSHOT")
    .setReason("Reason string")
    .setOrder(order);

Map<String, Object> conversationData = request.getConversationData();
String orderId = (String) conversationData.get("latestOrderId");
responseBuilder
    .add("Transaction completed! Your order " + orderId + " is all set!")
    .addSuggestions(new String[] {"send order update"})
    .add(new StructuredResponse().setOrderUpdateV3(orderUpdate));
```

### Java

```java
OrderV3 order = ((OrderV3) extension.get("order"));
order.setLastUpdateTime("2019-09-24T19:00:00.877Z");

// Update order status
PurchaseOrderExtension purchaseOrderExtension = order.getPurchase();
purchaseOrderExtension.setStatus("CONFIRMED");
purchaseOrderExtension.setUserVisibleStatusLabel("Order confirmed");
order.setPurchase(purchaseOrderExtension);

// Order update
OrderUpdateV3 orderUpdate = new OrderUpdateV3()
    .setType("SNAPSHOT")
    .setReason("Reason string")
    .setOrder(order);

Map<String, Object> conversationData = request.getConversationData();
String orderId = (String) conversationData.get("latestOrderId");
responseBuilder
    .add("Transaction completed! Your order " + orderId + " is all set!")
    .addSuggestions(new String[] {"send order update"})
    .add(new StructuredResponse().setOrderUpdateV3(orderUpdate));
```

### JSON

```
{
    "payload": {
        "google": {
          "expectUserResponse": true,
          "richResponse": {
                "items": [
                    {
                        "simpleResponse": {
                        "textToSpeech": "Transaction completed! Your order undefined is all set!"
                        }
                    },
                    {
                        "structuredResponse": {
                        "orderUpdateV3": {
                            "order": {
                            "buyerInfo": {
                                "displayName": "Jane Doe",
                                "email": "janedoe@gmail.com",
                                "firstName": "Jane",
                                "lastName": "Doe"
                            },
                            "contents": {
                                "lineItems": [
                                {
                                    "description": "A four cheese pizza.",
                                    "id": "LINE_ITEM_ID",
                                    "name": "Pizza",
                                    "notes": [
                                    "Extra cheese."
                                    ],
                                    "priceAttributes": [
                                    {
                                        "amount": {
                                        "amountInMicros": 8990000,
                                        "currencyCode": "USD"
                                        },
                                        "name": "Line Item Price",
                                        "state": "ACTUAL",
                                        "taxIncluded": true,
                                        "type": "REGULAR"
                                    },
                                    {
                                        "amount": {
                                        "amountInMicros": 9990000,
                                        "currencyCode": "USD"
                                        },
                                        "name": "Total Price",
                                        "state": "ACTUAL",
                                        "taxIncluded": true,
                                        "type": "TOTAL"
                                    }
                                    ],
                                    "purchase": {
                                    "itemOptions": [
                                        {
                                        "id": "ITEM_OPTION_ID",
                                        "name": "Pepperoni",
                                        "note": "Extra pepperoni",
                                        "prices": [
                                            {
                                            "amount": {
                                                "amountInMicros": 1000000,
                                                "currencyCode": "USD"
                                            },
                                            "name": "Item Price",
                                            "state": "ACTUAL",
                                            "taxIncluded": true,
                                            "type": "REGULAR"
                                            },
                                            {
                                            "amount": {
                                                "amountInMicros": 1000000,
                                                "currencyCode": "USD"
                                            },
                                            "name": "Total Price",
                                            "state": "ACTUAL",
                                            "taxIncluded": true,
                                            "type": "TOTAL"
                                            }
                                        ],
                                        "quantity": 1,
                                        "subOptions": []
                                        }
                                    ],
                                    "quantity": 1,
                                    "unitMeasure": {
                                        "measure": 1,
                                        "unit": "POUND"
                                    }
                                    }
                                }
                                ]
                            },
                            "createTime": "2019-09-24T18:00:00.877Z",
                            "followUpActions": [
                                {
                                "openUrlAction": {
                                    "url": "http://example.com"
                                },
                                "title": "View details",
                                "type": "VIEW_DETAILS"
                                },
                                {
                                "openUrlAction": {
                                    "url": "tel:+16501112222"
                                },
                                "title": "Call us",
                                "type": "CALL"
                                },
                                {
                                "openUrlAction": {
                                    "url": "mailto:person@example.com"
                                },
                                "title": "Email us",
                                "type": "EMAIL"
                                }
                            ],
                            "lastUpdateTime": "2019-09-24T19:00:00.877Z",
                            "merchantOrderId": "ORDER_ID",
                            "note": "Sale event",
                            "priceAttributes": [
                                {
                                "amount": {
                                    "amountInMicros": 9990000,
                                    "currencyCode": "USD"
                                },
                                "name": "Subtotal",
                                "state": "ESTIMATE",
                                "taxIncluded": true,
                                "type": "SUBTOTAL"
                                },
                                {
                                "amount": {
                                    "amountInMicros": 2000000,
                                    "currencyCode": "USD"
                                },
                                "name": "Delivery",
                                "state": "ACTUAL",
                                "taxIncluded": true,
                                "type": "DELIVERY"
                                },
                                {
                                "amount": {
                                    "amountInMicros": 3780000,
                                    "currencyCode": "USD"
                                },
                                "name": "Tax",
                                "state": "ESTIMATE",
                                "taxIncluded": true,
                                "type": "TAX"
                                },
                                {
                                "amount": {
                                    "amountInMicros": 15770000,
                                    "currencyCode": "USD"
                                },
                                "name": "Total Price",
                                "state": "ESTIMATE",
                                "taxIncluded": true,
                                "type": "TOTAL"
                                }
                            ],
                            "promotions": [
                                {
                                "coupon": "COUPON_CODE"
                                }
                            ],
                            "purchase": {
                                "fulfillmentInfo": {
                                "expectedFulfillmentTime": {
                                    "timeIso8601": "2019-09-25T18:00:00.877Z"
                                },
                                "fulfillmentContact": {
                                    "displayName": "John Johnson",
                                    "email": "johnjohnson@gmail.com",
                                    "firstName": "John",
                                    "lastName": "Johnson"
                                },
                                "fulfillmentType": "DELIVERY",
                                "id": "FULFILLMENT_SERVICE_ID",
                                "location": {},
                                "price": {
                                    "amount": {
                                    "amountInMicros": 2000000,
                                    "currencyCode": "USD"
                                    },
                                    "name": "Delivery Price",
                                    "state": "ACTUAL",
                                    "taxIncluded": true,
                                    "type": "REGULAR"
                                }
                                },
                                "purchaseLocationType": "ONLINE_PURCHASE",
                                "returnsInfo": {
                                "daysToReturn": 1,
                                "isReturnable": false,
                                "policyUrl": "http://www.example.com"
                                },
                                "status": "CONFIRMED",
                                "type": "FOOD",
                                "userVisibleStatusLabel": "Order confirmed"
                            },
                            "termsOfServiceUrl": "www.example.com",
                            "transactionMerchant": {
                                "id": "http://www.example.com",
                                "name": "Example Merchant"
                            },
                            "userVisibleOrderId": "ORDER_ID"
                            },
                            "reason": "Reason string",
                            "type": "SNAPSHOT"
                        }
                        }
                    }
                ],
                "suggestions": [
                    {
                        "title": "send order update"
                    }
                ]
            }
        }
      }
}
```

### JSON

```
{
    "expectUserResponse": true,
    "expectedInputs": [
      {
        "possibleIntents": [
          {
            "intent": "actions.intent.TEXT"
          }
        ],
        "inputPrompt": {
          "richInitialPrompt": {
            "items": [
              {
                "simpleResponse": {
                  "textToSpeech": "Transaction completed! Your order ORDER_ID is all set!"
                }
              },
              {
                "structuredResponse": {
                  "orderUpdateV3": {
                    "type": "SNAPSHOT",
                    "reason": "Reason string",
                    "order": {
                      "googleOrderId": "05528125187071048269",
                      "merchantOrderId": "ORDER_ID",
                      "userVisibleOrderId": "ORDER_ID",
                      "buyerInfo": {
                        "email": "janedoe@example.com",
                        "firstName": "Jane",
                        "lastName": "Doe",
                        "displayName": "Jane Doe"
                      },
                      "createTime": "2019-09-24T18:00:00.877Z",
                      "lastUpdateTime": "2019-09-24T19:00:00.877Z",
                      "transactionMerchant": {
                        "id": "http://www.example.com",
                        "name": "Example Merchant"
                      },
                      "contents": {
                        "lineItems": [
                          {
                            "id": "LINE_ITEM_ID",
                            "name": "Pizza",
                            "priceAttributes": [
                              {
                                "type": "REGULAR",
                                "name": "Item Price",
                                "state": "ACTUAL",
                                "amount": {
                                  "currencyCode": "USD",
                                  "amountInMicros": "8990000"
                                },
                                "taxIncluded": true
                              },
                              {
                                "type": "TOTAL",
                                "name": "Total Price",
                                "state": "ACTUAL",
                                "amount": {
                                  "currencyCode": "USD",
                                  "amountInMicros": "9990000"
                                },
                                "taxIncluded": true
                              }
                            ],
                            "description": "A four cheese pizza.",
                            "notes": [
                              "Extra cheese."
                            ],
                            "purchase": {
                              "quantity": 1,
                              "itemOptions": [
                                {
                                  "id": "ITEM_OPTION_ID",
                                  "name": "Pepperoni",
                                  "prices": [
                                    {
                                      "type": "REGULAR",
                                      "name": "Item Price",
                                      "state": "ACTUAL",
                                      "amount": {
                                        "currencyCode": "USD",
                                        "amountInMicros": "1000000"
                                      },
                                      "taxIncluded": true
                                    },
                                    {
                                      "type": "TOTAL",
                                      "name": "Total Price",
                                      "state": "ACTUAL",
                                      "amount": {
                                        "currencyCode": "USD",
                                        "amountInMicros": "1000000"
                                      },
                                      "taxIncluded": true
                                    }
                                  ],
                                  "note": "Extra pepperoni",
                                  "quantity": 1
                                }
                              ],
                              "unitMeasure": {
                                "measure": 1,
                                "unit": "POUND"
                              }
                            },
                            "vertical": {
                              "@type": "type.googleapis.com/google.actions.orders.v3.verticals.purchase.PurchaseItemExtension",
                              "quantity": 1,
                              "itemOptions": [
                                {
                                  "id": "ITEM_OPTION_ID",
                                  "name": "Pepperoni",
                                  "prices": [
                                    {
                                      "type": "REGULAR",
                                      "name": "Item Price",
                                      "state": "ACTUAL",
                                      "amount": {
                                        "currencyCode": "USD",
                                        "amountInMicros": "1000000"
                                      },
                                      "taxIncluded": true
                                    },
                                    {
                                      "type": "TOTAL",
                                      "name": "Total Price",
                                      "state": "ACTUAL",
                                      "amount": {
                                        "currencyCode": "USD",
                                        "amountInMicros": "1000000"
                                      },
                                      "taxIncluded": true
                                    }
                                  ],
                                  "note": "Extra pepperoni",
                                  "quantity": 1
                                }
                              ],
                              "unitMeasure": {
                                "measure": 1,
                                "unit": "POUND"
                              }
                            }
                          }
                        ]
                      },
                      "priceAttributes": [
                        {
                          "type": "SUBTOTAL",
                          "name": "Subtotal",
                          "state": "ESTIMATE",
                          "amount": {
                            "currencyCode": "USD",
                            "amountInMicros": "9990000"
                          },
                          "taxIncluded": true
                        },
                        {
                          "type": "DELIVERY",
                          "name": "Delivery",
                          "state": "ACTUAL",
                          "amount": {
                            "currencyCode": "USD",
                            "amountInMicros": "2000000"
                          },
                          "taxIncluded": true
                        },
                        {
                          "type": "TAX",
                          "name": "Tax",
                          "state": "ESTIMATE",
                          "amount": {
                            "currencyCode": "USD",
                            "amountInMicros": "3780000"
                          },
                          "taxIncluded": true
                        },
                        {
                          "type": "TOTAL",
                          "name": "Total Price",
                          "state": "ESTIMATE",
                          "amount": {
                            "currencyCode": "USD",
                            "amountInMicros": "15770000"
                          },
                          "taxIncluded": true
                        }
                      ],
                      "followUpActions": [
                        {
                          "type": "VIEW_DETAILS",
                          "title": "View details",
                          "openUrlAction": {
                            "url": "http://example.com"
                          }
                        },
                        {
                          "type": "CALL",
                          "title": "Call us",
                          "openUrlAction": {
                            "url": "tel:+16501112222"
                          }
                        },
                        {
                          "type": "EMAIL",
                          "title": "Email us",
                          "openUrlAction": {
                            "url": "mailto:person@example.com"
                          }
                        }
                      ],
                      "termsOfServiceUrl": "http://www.example.com",
                      "note": "Sale event",
                      "paymentData": {
                        "paymentResult": {
                          "merchantPaymentMethodId": "12345678"
                        },
                        "paymentInfo": {
                          "paymentMethodDisplayInfo": {
                            "paymentType": "PAYMENT_CARD",
                            "paymentMethodDisplayName": "VISA **** 1234"
                          },
                          "paymentMethodProvenance": "PAYMENT_METHOD_PROVENANCE_MERCHANT"
                        }
                      },
                      "promotions": [
                        {
                          "coupon": "COUPON_CODE"
                        }
                      ],
                      "purchase": {
                        "status": "CONFIRMED",
                        "type": "FOOD",
                        "returnsInfo": {
                          "daysToReturn": 1,
                          "policyUrl": "http://www.example.com"
                        },
                        "fulfillmentInfo": {
                          "id": "FULFILLMENT_SERVICE_ID",
                          "fulfillmentType": "DELIVERY",
                          "expectedFulfillmentTime": {
                            "timeIso8601": "2019-09-25T18:00:00.877Z"
                          },
                          "location": {
                            "coordinates": {
                              "latitude": 37.421578499999995,
                              "longitude": -122.0837816
                            },
                            "zipCode": "94043-1351",
                            "city": "MOUNTAIN VIEW",
                            "postalAddress": {
                              "regionCode": "US",
                              "postalCode": "94043-1351",
                              "administrativeArea": "CA",
                              "locality": "MOUNTAIN VIEW",
                              "addressLines": [
                                "1600 AMPHITHEATRE PKWY"
                              ],
                              "recipients": [
                                "John Doe"
                              ]
                            },
                            "phoneNumber": "+1 123-456-7890"
                          },
                          "price": {
                            "type": "REGULAR",
                            "name": "Delivery Price",
                            "state": "ACTUAL",
                            "amount": {
                              "currencyCode": "USD",
                              "amountInMicros": "2000000"
                            },
                            "taxIncluded": true
                          },
                          "fulfillmentContact": {
                            "email": "johnjohnson@gmail.com",
                            "firstName": "John",
                            "lastName": "Johnson",
                            "displayName": "John Johnson"
                          }
                        },
                        "purchaseLocationType": "ONLINE_PURCHASE",
                        "userVisibleStatusLabel": "Order confirmed"
                      },
                      "vertical": {
                        "@type": "type.googleapis.com/google.actions.orders.v3.verticals.purchase.PurchaseOrderExtension",
                        "status": "CREATED",
                        "type": "FOOD",
                        "returnsInfo": {
                          "daysToReturn": 1,
                          "policyUrl": "http://www.example.com"
                        },
                        "fulfillmentInfo": {
                          "id": "FULFILLMENT_SERVICE_ID",
                          "fulfillmentType": "DELIVERY",
                          "expectedFulfillmentTime": {
                            "timeIso8601": "2019-09-25T18:00:00.877Z"
                          },
                          "location": {
                            "coordinates": {
                              "latitude": 37.421578499999995,
                              "longitude": -122.0837816
                            },
                            "zipCode": "94043-1351",
                            "city": "MOUNTAIN VIEW",
                            "postalAddress": {
                              "regionCode": "US",
                              "postalCode": "94043-1351",
                              "administrativeArea": "CA",
                              "locality": "MOUNTAIN VIEW",
                              "addressLines": [
                                "1600 AMPHITHEATRE PKWY"
                              ],
                              "recipients": [
                                "John Doe"
                              ]
                            },
                            "phoneNumber": "+1 123-456-7890"
                          },
                          "price": {
                            "type": "REGULAR",
                            "name": "Delivery Price",
                            "state": "ACTUAL",
                            "amount": {
                              "currencyCode": "USD",
                              "amountInMicros": "2000000"
                            },
                            "taxIncluded": true
                          },
                          "fulfillmentContact": {
                            "email": "johnjohnson@gmail.com",
                            "firstName": "John",
                            "lastName": "Johnson",
                            "displayName": "John Johnson"
                          }
                        },
                        "purchaseLocationType": "ONLINE_PURCHASE",
                        "userVisibleStatusLabel": "CREATED"
                      }
                    }
                  }
                }
              }
            ],
            "suggestions": [
              {
                "title": "send order update"
              }
            ]
          }
        }
      }
    ],
    "conversationToken": "{\"data\":{\"paymentType\":\"merchant_payment\",\"location\":{\"coordinates\":{\"latitude\":37.421578499999995,\"longitude\":-122.0837816},\"zipCode\":\"94043-1351\",\"city\":\"MOUNTAIN VIEW\",\"postalAddress\":{\"regionCode\":\"US\",\"postalCode\":\"94043-1351\",\"administrativeArea\":\"CA\",\"locality\":\"MOUNTAIN VIEW\",\"addressLines\":[\"1600 AMPHITHEATRE PKWY\"],\"recipients\":[\"John Doe\"]},\"phoneNumber\":\"+1 123-456-7890\"},\"latestOrderId\":\"ORDER_ID\"}}"
  }
```

### 6. Send order updates

You'll need to keep the user informed about the order's status over the course of
its lifetime. Send the user order updates by sending HTTP
PATCH requests to the Orders API with the order status and details.

#### Set up asynchronous requests to the Orders API

Order update requests to the Orders API are authorized by an access
token. To PATCH an order update to the Orders API, download a JSON
service account key associated with your Actions Console project, then exchange
the service account key for a bearer token that can be passed into the
`Authorization` header of the HTTP request.

To retrieve your service account key, perform the following steps:

1. In the [Google Cloud console](https://console.cloud.google.com/), go to **Menu ☰ \> APIs \& Services \> Credentials \> Create credentials \> Service account key**.
2. Under **Service Account** , select **New Service Account**.
3. Set the service account to `service-account`.
4. Set **Role** to **Project \> Owner**.
5. Set key type to **JSON**.
6. Select **Create**.
7. A private JSON service account key will be downloaded to your local machine.

In your order updates code, you can exchange your service key for a bearer token
using the Google APIs client library and the *"https://www.googleapis.com/auth/actions.order.developer"* scope. You can find installation steps and
examples on the API client library [GitHub page](https://github.com/google/google-api-nodejs-client#using-jwt-service-tokens).

You can also reference `order-update.js` in our [Node.js](https://github.com/actions-on-google/dialogflow-transactions-nodejs) and [Java](https://github.com/actions-on-google/dialogflow-transactions-java) samples for
an example key exchange.

#### Send order updates

Once you've exchanged your service account key for an OAuth bearer token, you
can send order updates as authorized PATCH requests to the Orders API.

**Orders API URL:**
`
PATCH https://actions.googleapis.com/v3/orders/${orderId}
`

Provide the following headers in your request:

- `"Authorization: Bearer token"` with the OAuth bearer token you exchanged your service account key for.
- `"Content-Type: application/json"`.

The PATCH request should take a JSON body of the following format:

```
{ "orderUpdate": OrderUpdate }
```

The [`OrderUpdate`](https://developers.google.com/assistant/df-asdk/transactions/reference/physical/rest/v3/orders/patch.md.txt#orderupdate)
object consists of the following top-level fields:

- `updateMask` - The fields of the order that you're updating. To update the order status, set the value to `purchase.status, purchase.userVisibleStatusLabel`.
- `order` - The contents of the update. If you're updating the
  contents of the order, set the value to the updated `Order` object.
  If you're updating the status of the order (for example, from
  `"CONFIRMED"` to `"SHIPPED"`), the object contains the
  following fields:

  - `merchantOrderId` - The same ID you set in your `Order` object.
  - `lastUpdateTime` - The timestamp of this update.
  - `purchase` - An object containing the following:
    - `status` - The status of the order as a [`PurchaseStatus`](https://developers.google.com/assistant/df-asdk/transactions/reference/physical/rest/v3/Order.md.txt#purchasestatus), such as "`SHIPPED`" or "`DELIVERED`".
    - `userVisibleStatusLabel` - A user-facing label providing details on the order status, such as "Your order has been shipped and is on the way".
- `userNotification` *(optional)* - A [`userNotification`](https://developers.google.com/assistant/transactions/reference/physical/rest/v3/orders/patch.md.txt#usernotification)
  object that can display on the user's device when this update is sent. Note
  that including this object doesn't guarantee that a notification appears on
  the user's device.

The following sample code shows an example `OrderUpdate` that updates the
status of the order to `DELIVERED`:

### Node.js

```javascript
// Import the 'googleapis' module for authorizing the request.
const {google} = require('googleapis');
// Import the 'request-promise' module for sending an HTTP POST request.
const request = require('request-promise');
// Import the OrderUpdate class from the Actions on Google client library.
const {OrderUpdate} = require('actions-on-google');

// Import the service account key used to authorize the request.
// Replacing the string path with a path to your service account key.
// i.e. const serviceAccountKey = require('./service-account.json')

// Create a new JWT client for the Actions API using credentials
// from the service account key.
let jwtClient = new google.auth.JWT(
    serviceAccountKey.client_email,
    null,
    serviceAccountKey.private_key,
    ['https://www.googleapis.com/auth/actions.order.developer'],
    null,
);

// Authorize the client
let tokens = await jwtClient.authorize();

// Declare order update
const orderUpdate = new OrderUpdate({
    updateMask: [
      'lastUpdateTime',
      'purchase.status',
      'purchase.userVisibleStatusLabel',
    ].join(','),
    order: {
      merchantOrderId: orderId, // Specify the ID of the order to update
      lastUpdateTime: new Date().toISOString(),
      purchase: {
        status: 'DELIVERED',
        userVisibleStatusLabel: 'Order delivered',
      },
    },
    reason: 'Order status updated to delivered.',
});

// Set up the PATCH request header and body,
// including the authorized token and order update.
let options = {
  method: 'PATCH',
  uri: `https://actions.googleapis.com/v3/orders/${orderId}`,
  auth: {
    bearer: tokens.access_token,
  },
  body: {
    header: {
      isInSandbox: true,
    },
    orderUpdate,
  },
  json: true,
};

// Send the PATCH request to the Orders API.
try {
  await request(options);
  conv.close(`The order has been updated.`);
} catch (e) {
  console.log(`Error: ${e}`);
  conv.close(`There was an error sending an order update.`);
}
```

### Node.js

```javascript
// Import the 'googleapis' module for authorizing the request.
const {google} = require('googleapis');
// Import the 'request-promise' module for sending an HTTP POST request.
const request = require('request-promise');
// Import the OrderUpdate class from the Actions on Google client library.
const {OrderUpdate} = require('actions-on-google');

// Import the service account key used to authorize the request.
// Replacing the string path with a path to your service account key.
// i.e. const serviceAccountKey = require('./service-account.json')

// Create a new JWT client for the Actions API using credentials
// from the service account key.
let jwtClient = new google.auth.JWT(
    serviceAccountKey.client_email,
    null,
    serviceAccountKey.private_key,
    ['https://www.googleapis.com/auth/actions.order.developer'],
    null,
);

// Authorize the client
let tokens = await jwtClient.authorize();

// Declare order update
const orderUpdate = new OrderUpdate({
    updateMask: [
      'lastUpdateTime',
      'purchase.status',
      'purchase.userVisibleStatusLabel',
    ].join(','),
    order: {
      merchantOrderId: orderId, // Specify the ID of the order to update
      lastUpdateTime: new Date().toISOString(),
      purchase: {
        status: 'DELIVERED',
        userVisibleStatusLabel: 'Order delivered',
      },
    },
    reason: 'Order status updated to delivered.',
});

// Set up the PATCH request header and body,
// including the authorized token and order update.
let options = {
  method: 'PATCH',
  uri: `https://actions.googleapis.com/v3/orders/${orderId}`,
  auth: {
    bearer: tokens.access_token,
  },
  body: {
    header: {
      isInSandbox: true,
    },
    orderUpdate,
  },
  json: true,
};

// Send the PATCH request to the Orders API.
try {
  await request(options);
  conv.close(`The order has been updated.`);
} catch (e) {
  console.log(`Error: ${e}`);
  conv.close(`There was an error sending an order update.`);
}
```

### Java

```java
// Setup service account credentials
String serviceAccountFile = MyActionsApp.class.getClassLoader()
    .getResource(SERVICE_ACCOUNT_KEY_FILE_NAME)
    .getFile();
InputStream actionsApiServiceAccount = new FileInputStream(
    serviceAccountFile);
ServiceAccountCredentials serviceAccountCredentials = (ServiceAccountCredentials)
    ServiceAccountCredentials.fromStream(actionsApiServiceAccount)
        .createScoped(Collections.singleton(
            "https://www.googleapis.com/auth/actions.order.developer"));
AccessToken token = serviceAccountCredentials.refreshAccessToken();

// Setup request with headers
HttpPatch patchRequest = new HttpPatch(
    "https://actions.googleapis.com/v3/orders/" + orderId);
patchRequest.setHeader("Content-type", "application/json");
patchRequest.setHeader("Authorization", "Bearer " + token.getTokenValue());

// Create order update
FieldMask fieldMask = FieldMask.newBuilder().addAllPaths(Arrays.asList(
    "lastUpdateTime",
    "purchase.status",
    "purchase.userVisibleStatusLabel"))
    .build();

OrderUpdateV3 orderUpdate = new OrderUpdateV3()
    .setOrder(new OrderV3()
        .setMerchantOrderId(orderId)
        .setLastUpdateTime(Instant.now().toString())
        .setPurchase(new PurchaseOrderExtension()
            .setStatus("DELIVERED")
            .setUserVisibleStatusLabel("Order delivered.")))
    .setUpdateMask(FieldMaskUtil.toString(fieldMask))
    .setReason("Order status was updated to delivered.");

// Setup JSON body containing order update
JsonParser parser = new JsonParser();
JsonObject orderUpdateJson =
    parser.parse(new Gson().toJson(orderUpdate)).getAsJsonObject();
JsonObject body = new JsonObject();
body.add("orderUpdate", orderUpdateJson);
JsonObject header = new JsonObject();
header.addProperty("isInSandbox", true);
body.add("header", header);
StringEntity entity = new StringEntity(body.toString());
entity.setContentType(ContentType.APPLICATION_JSON.getMimeType());
patchRequest.setEntity(entity);

// Make request
HttpClient httpClient = HttpClientBuilder.create().build();
HttpResponse response = httpClient.execute(patchRequest);
LOGGER.info(response.getStatusLine().getStatusCode() + " " + response
    .getStatusLine().getReasonPhrase());

return getResponseBuilder(request)
    .add("The order has been updated.")
    .build();
```

### Java

```java
// Setup service account credentials
String serviceAccountFile = MyActionsApp.class.getClassLoader()
    .getResource(SERVICE_ACCOUNT_KEY_FILE_NAME)
    .getFile();
InputStream actionsApiServiceAccount = new FileInputStream(
    serviceAccountFile);
ServiceAccountCredentials serviceAccountCredentials = (ServiceAccountCredentials)
    ServiceAccountCredentials.fromStream(actionsApiServiceAccount)
        .createScoped(Collections.singleton(
            "https://www.googleapis.com/auth/actions.order.developer"));
AccessToken token = serviceAccountCredentials.refreshAccessToken();

// Setup request with headers
HttpPatch patchRequest = new HttpPatch(
    "https://actions.googleapis.com/v3/orders/" + orderId);
patchRequest.setHeader("Content-type", "application/json");
patchRequest.setHeader("Authorization", "Bearer " + token.getTokenValue());

// Create order update
FieldMask fieldMask = FieldMask.newBuilder().addAllPaths(Arrays.asList(
    "lastUpdateTime",
    "purchase.status",
    "purchase.userVisibleStatusLabel"))
    .build();

OrderUpdateV3 orderUpdate = new OrderUpdateV3()
    .setOrder(new OrderV3()
        .setMerchantOrderId(orderId)
        .setLastUpdateTime(Instant.now().toString())
        .setPurchase(new PurchaseOrderExtension()
            .setStatus("DELIVERED")
            .setUserVisibleStatusLabel("Order delivered.")))
    .setUpdateMask(FieldMaskUtil.toString(fieldMask))
    .setReason("Order status was updated to delivered.");

// Setup JSON body containing order update
JsonParser parser = new JsonParser();
JsonObject orderUpdateJson =
    parser.parse(new Gson().toJson(orderUpdate)).getAsJsonObject();
JsonObject body = new JsonObject();
body.add("orderUpdate", orderUpdateJson);
JsonObject header = new JsonObject();
header.addProperty("isInSandbox", true);
body.add("header", header);
StringEntity entity = new StringEntity(body.toString());
entity.setContentType(ContentType.APPLICATION_JSON.getMimeType());
patchRequest.setEntity(entity);

// Make request
HttpClient httpClient = HttpClientBuilder.create().build();
HttpResponse response = httpClient.execute(patchRequest);
LOGGER.info(response.getStatusLine().getStatusCode() + " " + response
    .getStatusLine().getReasonPhrase());

return getResponseBuilder(request)
    .add("The order has been updated.")
    .build();
```

##### Set the purchase status

An order update's `status`
must be descriptive of the current state of the order. In your update's `order.purchase.status`
field, use one of the following values:

- `CREATED` - Order is accepted by the user and "created" from the perspective of your Action but requires manual processing on your back-end.
- `CONFIRMED` - Order is active and being processed for fulfillment.
- `IN_PREPARATION` - Order is being prepared for shipment/delivery, such as food being cooked or an item being packaged.
- `READY_FOR_PICKUP` - Order is available for pick-up by the recipient.
- `DELIVERED` - Order has been delivered to the recipient
- `OUT_OF_STOCK` - One or more items in the order is out-of-stock.
- `CHANGE_REQUESTED` - User requested a change to the order, and the change is being processed.
- `RETURNED` - Order has been returned by the user after delivery.
- `REJECTED` - If you were unable to process, charge, or otherwise "activate" the order.
- `CANCELLED` - Order was cancelled by the user.

You should send order updates for each status that is relevant to your
transaction. For example, if your transaction requires manual processing to
log the order after it's placed, send a `CREATED` order update until
that additional processing is done. Not every order requires every status value.

> [!NOTE]
> **Note:** At minimum, every order requires a `CONFIRMED` order update.

## Troubleshooting

If you run into any issues during testing, you should read our [troubleshooting steps](https://developers.google.com/assistant/df-asdk/transactions/physical/troubleshooting.md.txt)
for transactions.

> [!WARNING]
> **Warning:** The Actions Web Simulator should not be used to test an Action with transactions. Please use an Assistant-enabled Android or iOS device to test your Action.