重新提示 (Dialogflow)

在 Dialogflow 中探索

點選 [繼續]，在 Dialogflow 中匯入 Reprompts 範例。接著，請按照 部署及測試範例的步驟：

  1. 輸入虛擬服務專員名稱，並為範例建立新的 Dialogflow 代理程式。
  2. 代理程式匯入完畢後，按一下「Go to agent」。
  3. 在主要導覽選單中，前往「Fulfillment」(執行要求)。
  4. 啟用「Inline Editor」(內嵌編輯器)，然後按一下 [Deploy] (部署)。編輯器包含範例 再也不是件繁重乏味的工作
  5. 在主要導覽選單中，前往「Integrations」(整合)，然後按一下「Google」 Google 助理。
  6. 在出現的互動視窗中，啟用「自動預覽變更」，然後按一下「測試」 以開啟動作模擬工具
  7. 在模擬工具中輸入 Talk to my test app 即可測試範例！
繼續

您可以使用下列功能來處理使用者未提供程式碼的情況 輸入動作 (無輸入錯誤)：

  • 系統預設重新提示 - 這類問題會自動重新提示使用者 一般情況都通用的預先掃描提示
  • 動態提示：宣告您要處理 並收到意圖 (Actions SDK) 或事件 (Dialogflow) 因此您可以依個案處理。
，瞭解如何調查及移除這項存取權。

系統預設提示

根據預設，當你回傳回覆給 Google 助理時，系統會使用 預設提示要求使用者重複輸入或重新輸入。

Dialogflow

Dialogflow 會強制執行最多三個不相符和無輸入內容的輸入內容。 對話收集嘗試達三次時，Dialogflow 虛擬服務專員 會結束包含預設回覆的對話。下列項目中不相符的輸入內容： Dialogflow 是觸發任何備用意圖時。

動態提示

每當動作失敗時，您就會收到意圖或 Dialogflow 事件 接收任何輸入內容可讓您依據 然後適當地再次提示使用者

Dialogflow

您可以建立兩種類型的無輸入意圖：

  • 一般意圖：這個方法不會套用任何背景資訊，因此將會觸發 當沒有另一個更符合情境意圖的意圖時。這很實用 適合您多數情況下適用的一般提示

  • 後續追蹤意圖 - 透過 Dialogflow 強制執行後續追蹤意圖 背景脈絡，確保只有在結果出現特定轉變之後，才會觸發提示 對話。如要套用專屬提示，這項功能就非常實用 模型的依據。

如何處理無輸入事件：

  1. 在左側導覽中，按一下「Intents」(意圖)。
  2. 建立一般意圖或後續追蹤意圖。
    • 適用於一般意圖：按一下「Intent」(意圖) 選單的 + 圖示 然後為意圖命名，例如「Reprompt」

    • 針對後續追蹤意圖：將滑鼠遊標懸停在想要的意圖上 自訂無輸入重新提示，然後按一下「Add Follow-up intent」(新增後續追蹤意圖) > 自訂自訂規格。系統會在原始意圖下方建立新意圖。

  3. 按一下新建立的意圖，開啟意圖編輯器。
  4. 按一下「Events」部分，然後輸入「actions_intent_NO_INPUT」插入 欄位中：
  5. 在「動作」部分中，輸入動作名稱或使用系統提供的動作名稱 根據預設。本例將使用「no.input」。

  6. 按一下 [儲存]。
  7. 點選左側導覽面板中的「整合」
  8. 選擇「Google 助理」，然後按一下「測試」，即可開始測試 確認相關變更已反映在 Actions 專案中。

每當這個意圖沒有任何輸入內容時，您可以使用 您的執行要求，藉此傳回適當回應，或是在 Dialogflow 中建立相應回應。 例如，以下使用用戶端程式庫執行以下動作的執行要求程式碼： 會處理稱為「Reprompt」的一般無輸入意圖

Node.js

const {dialogflow} = require('actions-on-google');
const functions = require('firebase-functions');

const app = dialogflow({debug: true});

app.intent('Reprompt', (conv) => {
  const repromptCount = parseInt(conv.arguments.get('REPROMPT_COUNT'));
  if (repromptCount === 0) {
  conv.ask(`What was that?`);
  } else if (repromptCount === 1) {
  conv.ask(`Sorry I didn't catch that. Could you repeat yourself?`);
  } else if (conv.arguments.get('IS_FINAL_REPROMPT')) {
  conv.close(`Okay let's try this again later.`);
  }
});

exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app);
index.js

Java

package com.example;

import com.google.actions.api.ActionRequest;
import com.google.actions.api.ActionResponse;
import com.google.actions.api.DialogflowApp;
import com.google.actions.api.ForIntent;
import com.google.actions.api.response.ResponseBuilder;

public class MyActionsApp extends DialogflowApp {

  @ForIntent("Reprompt")
  public ActionResponse reprompt(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    int repromptCount = request.getRepromptCount();
    String response;
    if (repromptCount == 0) {
      response = "What was that?";
    } else if (repromptCount == 1) {
      response = "Sorry, I didn't catch that. Could you repeat yourself?";
    } else {
      responseBuilder.endConversation();
      response = "Okay let's try this again later.";
    }
    return responseBuilder.add(response).build();
  }
}
MyActionsApp.java

要求 JSON

請注意，以下 JSON 描述的是 Webhook 要求。

{
  "responseId": "f26a9188-4998-42eb-ac16-d0e6e273b137-712767ed",
  "queryResult": {
    "queryText": "actions_intent_NO_INPUT",
    "parameters": {},
    "allRequiredParamsPresent": true,
    "fulfillmentText": "Webhook failed for intent: Reprompt",
    "fulfillmentMessages": [
      {
        "text": {
          "text": [
            "Webhook failed for intent: Reprompt"
          ]
        }
      }
    ],
    "outputContexts": [
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_capability_media_response_audio"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_capability_account_linking"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_capability_audio_output"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/google_assistant_input_type_voice"
      },
      {
        "name": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA/contexts/actions_intent_no_input",
        "parameters": {
          "REPROMPT_COUNT": 2,
          "IS_FINAL_REPROMPT": true
        }
      }
    ],
    "intent": {
      "name": "projects/df-reprompts-kohler/agent/intents/75dfd97d-6368-4436-9533-70f05ae76c96",
      "displayName": "Reprompt"
    },
    "intentDetectionConfidence": 1,
    "languageCode": "en"
  },
  "originalDetectIntentRequest": {
    "source": "google",
    "version": "2",
    "payload": {
      "user": {
        "locale": "en-US",
        "userVerificationStatus": "VERIFIED"
      },
      "conversation": {
        "conversationId": "ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA",
        "type": "ACTIVE",
        "conversationToken": "[]"
      },
      "inputs": [
        {
          "intent": "actions.intent.NO_INPUT",
          "rawInputs": [
            {
              "inputType": "VOICE"
            }
          ],
          "arguments": [
            {
              "name": "REPROMPT_COUNT",
              "intValue": "2"
            },
            {
              "name": "IS_FINAL_REPROMPT",
              "boolValue": true
            }
          ]
        }
      ],
      "surface": {
        "capabilities": [
          {
            "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
          },
          {
            "name": "actions.capability.ACCOUNT_LINKING"
          },
          {
            "name": "actions.capability.AUDIO_OUTPUT"
          }
        ]
      },
      "availableSurfaces": [
        {
          "capabilities": [
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.WEB_BROWSER"
            }
          ]
        }
      ]
    }
  },
  "session": "projects/df-reprompts-kohler/agent/sessions/ABwppHFi9Dpwy6KiEtS0UIPDNVfa7mlkrPIEZRlikFkjuN_4SGPixgX8OCatpXu38ln7VG43-nk-7veZWhds3nLljA"
}

回應 JSON

請注意，下列 JSON 會說明 Webhook 回應。

{
  "payload": {
    "google": {
      "expectUserResponse": false,
      "richResponse": {
        "items": [
          {
            "simpleResponse": {
              "textToSpeech": "Okay let's try this again later."
            }
          }
        ]
      }
    }
  }
}

Actions SDK

如何處理無輸入意圖：

  1. 在動作套件內的 conversations 物件中宣告 就在使用者未提供事件時，接收 actions.intent.NO_INPUT 意圖 。 
    {
  "actions": [
    {
      "description": "Default Welcome Intent",
      "name": "MAIN",
      "fulfillment": {
        "conversationName": "conversation_1"
      },
      "intent": {
        "name": "actions.intent.MAIN"
      }
    }
  ],
  "conversations": {
    "conversation_1": {
      "name": "conversation_1",
      "url": "YOUR_FULFILLMENT_URL",
      "inDialogIntents": [
        {
          "name": "actions.intent.NO_INPUT"
        }
      ]
    }
  }
}
    action.json
  2. 如果 Google 助理未收到使用者輸入的內容，你便會 下一個要求傳送至執行要求的是無輸入意圖。接著 處理意圖並傳回適當的恢復回應以下是 範例：

    Node.js

    const {actionssdk} = require('actions-on-google');
const functions = require('firebase-functions');

const app = actionssdk({debug: true});

app.intent('actions.intent.MAIN', (conv) => {
  conv.ask(`Hi! Try this sample on a speaker device, ` +
    `and stay silent when the mic is open. If trying ` +
    `on the Actions console simulator, click the no-input ` +
    `button next to the text input field.`);
});

app.intent('actions.intent.TEXT', (conv, input) => {
  conv.ask(`You said ${input}`);
  conv.ask(`Try this sample on a speaker device, ` +
    `and stay silent when the mic is open. If trying ` +
    `on the Actions console simulator, click the no-input ` +
    `button next to the text input field.`);
});

app.intent('actions.intent.NO_INPUT', (conv) => {
  const repromptCount = parseInt(conv.arguments.get('REPROMPT_COUNT'));
  if (repromptCount === 0) {
    conv.ask(`What was that?`);
  } else if (repromptCount === 1) {
    conv.ask(`Sorry I didn't catch that. Could you repeat yourself?`);
  } else if (conv.arguments.get('IS_FINAL_REPROMPT')) {
    conv.close(`Okay let's try this again later.`);
  }
});

exports.dialogflowFirebaseFulfillment = functions.https.onRequest(app);
    index.js

    Java

    package com.example;

import com.google.actions.api.ActionRequest;
import com.google.actions.api.ActionResponse;
import com.google.actions.api.ActionsSdkApp;
import com.google.actions.api.ConstantsKt;
import com.google.actions.api.ForIntent;
import com.google.actions.api.response.ResponseBuilder;
import com.google.actions.api.response.helperintent.Confirmation;
import com.google.actions.api.response.helperintent.DateTimePrompt;
import com.google.actions.api.response.helperintent.Permission;
import com.google.actions.api.response.helperintent.Place;
import com.google.api.services.actions_fulfillment.v2.model.DateTime;
import com.google.api.services.actions_fulfillment.v2.model.Location;

public class MyActionsApp extends ActionsSdkApp {

  @ForIntent("actions.intent.MAIN")
  public ActionResponse welcome(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    responseBuilder.add("Hi! Try this sample on a speaker device, and stay silent when the mic is open. If trying on the Actions console simulator, click the no-input button next to the text input field.");
    return responseBuilder.build();
  }

  @ForIntent("actions.intent.TEXT")
  public ActionResponse fallback(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    responseBuilder.add("You said " + request.getRawInput().getQuery());
    responseBuilder.add("Try this sample on a speaker device, and stay silent when the mic is open. If trying on the Actions console simulator, click the no-input button next to the text input field.");
    return responseBuilder.build();
  }

  @ForIntent("actions.intent.NO_INPUT")
  public ActionResponse reprompt(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    int repromptCount = request.getRepromptCount();
    String response;
    if (repromptCount == 0) {
      response = "What was that?";
    } else if (repromptCount == 1) {
      response = "Sorry, I didn't catch that. Could you repeat yourself?";
    } else {
      responseBuilder.endConversation();
      response = "Okay let's try this again later.";
    }
    return responseBuilder.add(response).build();
  }

}
    MyActionsApp.java

    要求 JSON

    請注意，以下 JSON 描述的是 Webhook 要求。

    {
  "user": {
    "locale": "en-US",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHEVDuKUPjdZ4Ud-F2yBXN5ssRg2funUp59hSHQheAi-B5Y3EzehAKFtVwMkduqMRWscUp77ScrDjYnYxISqAM-qOXuXEuCw",
    "type": "ACTIVE",
    "conversationToken": "{\"data\":{}}"
  },
  "inputs": [
    {
      "intent": "actions.intent.NO_INPUT",
      "rawInputs": [
        {
          "inputType": "VOICE"
        }
      ],
      "arguments": [
        {
          "name": "REPROMPT_COUNT",
          "intValue": "2"
        },
        {
          "name": "IS_FINAL_REPROMPT",
          "boolValue": true
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      }
    ]
  },
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        },
        {
          "name": "actions.capability.WEB_BROWSER"
        },
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        }
      ]
    }
  ]
}

    回應 JSON

    請注意，下列 JSON 會說明 Webhook 回應。

    {
  "expectUserResponse": false,
  "finalResponse": {
    "richResponse": {
      "items": [
        {
          "simpleResponse": {
            "textToSpeech": "Okay let's try this again later."
          }
        }
      ]
    }
  }
}