Criar recursos de terceiros com o menu "@"

Esta página explica como criar um complemento do Google Workspace que permite que os usuários do Documentos Google criem recursos, como um caso de suporte ou uma tarefa de projeto, em um serviço de terceiros no Documentos Google.

Com um complemento do Google Workspace, você pode adicionar seu serviço ao menu "@" nos Documentos. O complemento adiciona itens de menu que permitem que os usuários criem recursos no seu serviço usando uma caixa de diálogo de formulário nos Documentos.

Como os usuários criam recursos

Para criar um recurso no seu serviço em um documento do Google Docs, os usuários digitam @ em um documento e selecionam seu serviço no menu @:

O usuário visualiza um card

Quando os usuários digitam @ em um documento e selecionam seu serviço, você mostra a eles um card que inclui as entradas de formulário necessárias para criar um recurso. Depois que o usuário envia o formulário de criação de recursos, o complemento precisa criar o recurso no serviço e gerar um URL que aponte para ele.

O complemento insere um ícone no documento para o recurso criado. Quando os usuários mantêm o ponteiro sobre esse ícone, ele invoca o acionador de visualização de link associado ao complemento. Verifique se o complemento insere ícones com padrões de link aceitos pelos acionadores de visualização de link.

Pré-requisitos

Apps ScriptNode.jsPythonJava
  • Um complemento do Google Workspace que oferece suporte a visualizações de link para os padrões de link dos recursos criados pelos usuários. Para criar um complemento com visualizações de links, consulte Visualizar links com ícones inteligentes.
  • Um complemento do Google Workspace que oferece suporte a visualizações de link para os padrões de link dos recursos criados pelos usuários. Para criar um complemento com visualizações de links, consulte Visualizar links com ícones inteligentes.
  • Um complemento do Google Workspace que oferece suporte a visualizações de link para os padrões de link dos recursos criados pelos usuários. Para criar um complemento com visualizações de links, consulte Visualizar links com ícones inteligentes.
  • Um complemento do Google Workspace que oferece suporte a visualizações de link para os padrões de link dos recursos criados pelos usuários. Para criar um complemento com visualizações de links, consulte Visualizar links com ícones inteligentes.

Configurar a criação de recursos para o complemento

Esta seção explica como configurar a criação de recursos para seu complemento, o que inclui as seguintes etapas:

  1. Configure a criação de recursos no manifesto do complemento.
  2. Crie os cards de formulário que os usuários precisam para criar recursos no seu serviço.
  3. Processar envios de formulários para que a função que cria o recurso seja executada quando os usuários enviam o formulário.

Configurar a criação de recursos

Para configurar a criação de recursos, especifique as seguintes seções e campos no manifesto do complemento:

  1. Na seção addOns do campo docs, implemente o gatilho createActionTriggers que inclui um runFunction. Você define essa função na seção a seguir, Criar os cards de formulário.

    Para saber quais campos podem ser especificados no acionador createActionTriggers, consulte a documentação de referência de manifestos do Apps Script ou os recursos de implantação para outros ambientes de execução.

  2. No campo oauthScopes, adicione o escopo https://www.googleapis.com/auth/workspace.linkcreate para que os usuários possam autorizar o complemento a criar recursos. Especificamente, esse escopo permite que o complemento leia as informações que os usuários enviam para o formulário de criação de recursos e insira um ícone inteligente no documento com base nessas informações.

Como exemplo, consulte a seção addons de um manifesto que configura a criação de recursos para o seguinte serviço de caso de suporte:

{
  "oauthScopes": [
    "https://www.googleapis.com/auth/workspace.linkpreview",
    "https://www.googleapis.com/auth/workspace.linkcreate"
  ],
  "addOns": {
    "docs": {
      "linkPreviewTriggers": [
        ...
      ],
      "createActionTriggers": [
        {
          "id": "createCase",
          "labelText": "Create support case",
          "localizedLabelText": {
            "es": "Crear caso de soporte"
          },
          "runFunction": "createCaseInputCard",
          "logoUrl": "https://www.example.com/images/case.png"
        }
      ]
    }
  }
}

No exemplo, o complemento do Google Workspace permite que os usuários criem casos de suporte. Cada acionador createActionTriggers precisa ter os seguintes campos:

  • Um ID exclusivo
  • Um rótulo de texto que aparece no menu "Documentos"
  • Um URL de logotipo que aponta para um ícone que aparece ao lado do texto do rótulo no menu @
  • Uma função de callback que faz referência a uma função do Apps Script ou a um endpoint HTTP que retorna um card

Criar os cards do formulário

Para criar recursos no seu serviço no menu @ do Documentos, é necessário implementar todas as funções especificadas no objeto createActionTriggers.

Quando um usuário interage com um dos itens do menu, o gatilho createActionTriggers correspondente é acionado, e a função de callback apresenta um card com entradas de formulário para criar o recurso.

Elementos e ações aceitos

Para criar a interface do card, use widgets para mostrar informações e entradas que os usuários precisam para criar o recurso. A maioria dos widgets e ações de complementos do Google Workspace são compatíveis com as seguintes exceções:

  • Não é possível usar rodapés de cartão.
  • Não há suporte para notificações.
  • Para navegações, somente a navegação updateCard é aceita.

Exemplo de card com entradas de formulário

O exemplo a seguir mostra uma função de callback do Apps Script que exibe um card quando um usuário seleciona Create support case no menu @:

Apps Script Node.js Python Java
apps-script/3p-resources/3p-resources.gs
/**
 * Produces a support case creation form card.
 * 
 * @param {!Object} event The event object.
 * @param {!Object=} errors An optional map of per-field error messages.
 * @param {boolean} isUpdate Whether to return the form as an update card navigation.
 * @return {!Card|!ActionResponse} The resulting card or action response.
 */
function createCaseInputCard(event, errors, isUpdate) {

  const cardHeader = CardService.newCardHeader()
    .setTitle('Create a support case')

  const cardSectionTextInput1 = CardService.newTextInput()
    .setFieldName('name')
    .setTitle('Name')
    .setMultiline(false);

  const cardSectionTextInput2 = CardService.newTextInput()
    .setFieldName('description')
    .setTitle('Description')
    .setMultiline(true);

  const cardSectionSelectionInput1 = CardService.newSelectionInput()
    .setFieldName('priority')
    .setTitle('Priority')
    .setType(CardService.SelectionInputType.DROPDOWN)
    .addItem('P0', 'P0', false)
    .addItem('P1', 'P1', false)
    .addItem('P2', 'P2', false)
    .addItem('P3', 'P3', false);

  const cardSectionSelectionInput2 = CardService.newSelectionInput()
    .setFieldName('impact')
    .setTitle('Impact')
    .setType(CardService.SelectionInputType.CHECK_BOX)
    .addItem('Blocks a critical customer operation', 'Blocks a critical customer operation', false);

  const cardSectionButtonListButtonAction = CardService.newAction()
    .setPersistValues(true)
    .setFunctionName('submitCaseCreationForm')
    .setParameters({});

  const cardSectionButtonListButton = CardService.newTextButton()
    .setText('Create')
    .setTextButtonStyle(CardService.TextButtonStyle.TEXT)
    .setOnClickAction(cardSectionButtonListButtonAction);

  const cardSectionButtonList = CardService.newButtonSet()
    .addButton(cardSectionButtonListButton);

  // Builds the form inputs with error texts for invalid values.
  const cardSection = CardService.newCardSection();
  if (errors?.name) {
    cardSection.addWidget(createErrorTextParagraph(errors.name));
  }
  cardSection.addWidget(cardSectionTextInput1);
  if (errors?.description) {
    cardSection.addWidget(createErrorTextParagraph(errors.description));
  }
  cardSection.addWidget(cardSectionTextInput2);
  if (errors?.priority) {
    cardSection.addWidget(createErrorTextParagraph(errors.priority));
  }
  cardSection.addWidget(cardSectionSelectionInput1);
  if (errors?.impact) {
    cardSection.addWidget(createErrorTextParagraph(errors.impact));
  }

  cardSection.addWidget(cardSectionSelectionInput2);
  cardSection.addWidget(cardSectionButtonList);

  const card = CardService.newCardBuilder()
    .setHeader(cardHeader)
    .addSection(cardSection)
    .build();

  if (isUpdate) {
    return CardService.newActionResponseBuilder()
      .setNavigation(CardService.newNavigation().updateCard(card))
      .build();
  } else {
    return card;
  }
}
node/3p-resources/index.js
/**
 * Produces a support case creation form card.
 * 
 * @param {!Object} event The event object.
 * @param {!Object=} errors An optional map of per-field error messages.
 * @param {boolean} isUpdate Whether to return the form as an update card navigation.
 * @return {!Card|!ActionResponse} The resulting card or action response.
 */
function createCaseInputCard(event, errors, isUpdate) {

  const cardHeader1 = {
    title: "Create a support case"
  };

  const cardSection1TextInput1 = {
    textInput: {
      name: "name",
      label: "Name"
    }
  };

  const cardSection1TextInput2 = {
    textInput: {
      name: "description",
      label: "Description",
      type: "MULTIPLE_LINE"
    }
  };

  const cardSection1SelectionInput1 = {
    selectionInput: {
      name: "priority",
      label: "Priority",
      type: "DROPDOWN",
      items: [{
        text: "P0",
        value: "P0"
      }, {
        text: "P1",
        value: "P1"
      }, {
        text: "P2",
        value: "P2"
      }, {
        text: "P3",
        value: "P3"
      }]
    }
  };

  const cardSection1SelectionInput2 = {
    selectionInput: {
      name: "impact",
      label: "Impact",
      items: [{
        text: "Blocks a critical customer operation",
        value: "Blocks a critical customer operation"
      }]
    }
  };

  const cardSection1ButtonList1Button1Action1 = {
    function: process.env.URL,
    parameters: [
      {
        key: "submitCaseCreationForm",
        value: true
      }
    ],
    persistValues: true
  };

  const cardSection1ButtonList1Button1 = {
    text: "Create",
    onClick: {
      action: cardSection1ButtonList1Button1Action1
    }
  };

  const cardSection1ButtonList1 = {
    buttonList: {
      buttons: [cardSection1ButtonList1Button1]
    }
  };

  // Builds the creation form and adds error text for invalid inputs.
  const cardSection1 = [];
  if (errors?.name) {
    cardSection1.push(createErrorTextParagraph(errors.name));
  }
  cardSection1.push(cardSection1TextInput1);
  if (errors?.description) {
    cardSection1.push(createErrorTextParagraph(errors.description));
  }
  cardSection1.push(cardSection1TextInput2);
  if (errors?.priority) {
    cardSection1.push(createErrorTextParagraph(errors.priority));
  }
  cardSection1.push(cardSection1SelectionInput1);
  if (errors?.impact) {
    cardSection1.push(createErrorTextParagraph(errors.impact));
  }

  cardSection1.push(cardSection1SelectionInput2);
  cardSection1.push(cardSection1ButtonList1);

  const card = {
    header: cardHeader1,
    sections: [{
      widgets: cardSection1
    }]
  };

  if (isUpdate) {
    return {
      renderActions: {
        action: {
          navigations: [{
            updateCard: card
          }]
        }
      }
    };
  } else {
    return {
      action: {
        navigations: [{
          pushCard: card
        }]
      }
    };
  }
}
python/3p-resources/create_3p_resources/main.py
def create_case_input_card(event, errors = {}, isUpdate = False):
    """Produces a support case creation form card.
    Args:
      event: The event object.
      errors: An optional dict of per-field error messages.
      isUpdate: Whether to return the form as an update card navigation.
    Returns:
      The resulting card or action response.
    """
    card_header1 = {
        "title": "Create a support case"
    }

    card_section1_text_input1 = {
        "textInput": {
            "name": "name",
            "label": "Name"
        }
    }

    card_section1_text_input2 = {
        "textInput": {
            "name": "description",
            "label": "Description",
            "type": "MULTIPLE_LINE"
        }
    }

    card_section1_selection_input1 = {
        "selectionInput": {
            "name": "priority",
            "label": "Priority",
            "type": "DROPDOWN",
            "items": [{
                "text": "P0",
                "value": "P0"
            }, {
                "text": "P1",
                "value": "P1"
            }, {
                "text": "P2",
                "value": "P2"
            }, {
                "text": "P3",
                "value": "P3"
            }]
        }
    }

    card_section1_selection_input2 = {
        "selectionInput": {
            "name": "impact",
            "label": "Impact",
            "items": [{
                "text": "Blocks a critical customer operation",
                "value": "Blocks a critical customer operation"
            }]
        }
    }

    card_section1_button_list1_button1_action1 = {
        "function": os.environ["URL"],
        "parameters": [
        {
            "key": "submitCaseCreationForm",
            "value": True
        }
        ],
        "persistValues": True
    }

    card_section1_button_list1_button1 = {
        "text": "Create",
        "onClick": {
            "action": card_section1_button_list1_button1_action1
        }
    }

    card_section1_button_list1 = {
        "buttonList": {
            "buttons": [card_section1_button_list1_button1]
        }
    }

    # Builds the creation form and adds error text for invalid inputs.
    card_section1 = []
    if "name" in errors:
        card_section1.append(create_error_text_paragraph(errors["name"]))
    card_section1.append(card_section1_text_input1)
    if "description" in errors:
        card_section1.append(create_error_text_paragraph(errors["description"]))
    card_section1.append(card_section1_text_input2)
    if "priority" in errors:
        card_section1.append(create_error_text_paragraph(errors["priority"]))
    card_section1.append(card_section1_selection_input1)
    if "impact" in errors:
        card_section1.append(create_error_text_paragraph(errors["impact"]))

    card_section1.append(card_section1_selection_input2)
    card_section1.append(card_section1_button_list1)

    card = {
        "header": card_header1,
        "sections": [{
            "widgets": card_section1
        }]
    }

    if isUpdate:
        return {
            "renderActions": {
                "action": {
                        "navigations": [{
                        "updateCard": card
                    }]
                }
            }
        }
    else:
        return {
            "action": {
                "navigations": [{
                    "pushCard": card
                }]
            }
        }
java/3p-resources/src/main/java/Create3pResources.java
/**
 * Produces a support case creation form.
 * 
 * @param event The event object.
 * @param errors A map of per-field error messages.
 * @param isUpdate Whether to return the form as an update card navigation.
 * @return The resulting card or action response.
 */
JsonObject createCaseInputCard(JsonObject event, Map<String, String> errors, boolean isUpdate) {
  JsonObject cardHeader = new JsonObject();
  cardHeader.add("title", new JsonPrimitive("Create a support case"));

  JsonObject cardSectionTextInput1 = new JsonObject();
  cardSectionTextInput1.add("name", new JsonPrimitive("name"));
  cardSectionTextInput1.add("label", new JsonPrimitive("Name"));

  JsonObject cardSectionTextInput1Widget = new JsonObject();
  cardSectionTextInput1Widget.add("textInput", cardSectionTextInput1);

  JsonObject cardSectionTextInput2 = new JsonObject();
  cardSectionTextInput2.add("name", new JsonPrimitive("description"));
  cardSectionTextInput2.add("label", new JsonPrimitive("Description"));
  cardSectionTextInput2.add("type", new JsonPrimitive("MULTIPLE_LINE"));

  JsonObject cardSectionTextInput2Widget = new JsonObject();
  cardSectionTextInput2Widget.add("textInput", cardSectionTextInput2);

  JsonObject cardSectionSelectionInput1ItemsItem1 = new JsonObject();
  cardSectionSelectionInput1ItemsItem1.add("text", new JsonPrimitive("P0"));
  cardSectionSelectionInput1ItemsItem1.add("value", new JsonPrimitive("P0"));

  JsonObject cardSectionSelectionInput1ItemsItem2 = new JsonObject();
  cardSectionSelectionInput1ItemsItem2.add("text", new JsonPrimitive("P1"));
  cardSectionSelectionInput1ItemsItem2.add("value", new JsonPrimitive("P1"));

  JsonObject cardSectionSelectionInput1ItemsItem3 = new JsonObject();
  cardSectionSelectionInput1ItemsItem3.add("text", new JsonPrimitive("P2"));
  cardSectionSelectionInput1ItemsItem3.add("value", new JsonPrimitive("P2"));

  JsonObject cardSectionSelectionInput1ItemsItem4 = new JsonObject();
  cardSectionSelectionInput1ItemsItem4.add("text", new JsonPrimitive("P3"));
  cardSectionSelectionInput1ItemsItem4.add("value", new JsonPrimitive("P3"));

  JsonArray cardSectionSelectionInput1Items = new JsonArray();
  cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem1);
  cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem2);
  cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem3);
  cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem4);

  JsonObject cardSectionSelectionInput1 = new JsonObject();
  cardSectionSelectionInput1.add("name", new JsonPrimitive("priority"));
  cardSectionSelectionInput1.add("label", new JsonPrimitive("Priority"));
  cardSectionSelectionInput1.add("type", new JsonPrimitive("DROPDOWN"));
  cardSectionSelectionInput1.add("items", cardSectionSelectionInput1Items);

  JsonObject cardSectionSelectionInput1Widget = new JsonObject();
  cardSectionSelectionInput1Widget.add("selectionInput", cardSectionSelectionInput1);

  JsonObject cardSectionSelectionInput2ItemsItem = new JsonObject();
  cardSectionSelectionInput2ItemsItem.add("text", new JsonPrimitive("Blocks a critical customer operation"));
  cardSectionSelectionInput2ItemsItem.add("value", new JsonPrimitive("Blocks a critical customer operation"));

  JsonArray cardSectionSelectionInput2Items = new JsonArray();
  cardSectionSelectionInput2Items.add(cardSectionSelectionInput2ItemsItem);

  JsonObject cardSectionSelectionInput2 = new JsonObject();
  cardSectionSelectionInput2.add("name", new JsonPrimitive("impact"));
  cardSectionSelectionInput2.add("label", new JsonPrimitive("Impact"));
  cardSectionSelectionInput2.add("items", cardSectionSelectionInput2Items);

  JsonObject cardSectionSelectionInput2Widget = new JsonObject();
  cardSectionSelectionInput2Widget.add("selectionInput", cardSectionSelectionInput2);

  JsonObject cardSectionButtonListButtonActionParametersParameter = new JsonObject();
  cardSectionButtonListButtonActionParametersParameter.add("key", new JsonPrimitive("submitCaseCreationForm"));
  cardSectionButtonListButtonActionParametersParameter.add("value", new JsonPrimitive(true));

  JsonArray cardSectionButtonListButtonActionParameters = new JsonArray();
  cardSectionButtonListButtonActionParameters.add(cardSectionButtonListButtonActionParametersParameter);

  JsonObject cardSectionButtonListButtonAction = new JsonObject();
  cardSectionButtonListButtonAction.add("function", new JsonPrimitive(System.getenv().get("URL")));
  cardSectionButtonListButtonAction.add("parameters", cardSectionButtonListButtonActionParameters);
  cardSectionButtonListButtonAction.add("persistValues", new JsonPrimitive(true));

  JsonObject cardSectionButtonListButtonOnCLick = new JsonObject();
  cardSectionButtonListButtonOnCLick.add("action", cardSectionButtonListButtonAction);

  JsonObject cardSectionButtonListButton = new JsonObject();
  cardSectionButtonListButton.add("text", new JsonPrimitive("Create"));
  cardSectionButtonListButton.add("onClick", cardSectionButtonListButtonOnCLick);

  JsonArray cardSectionButtonListButtons = new JsonArray();
  cardSectionButtonListButtons.add(cardSectionButtonListButton);

  JsonObject cardSectionButtonList = new JsonObject();
  cardSectionButtonList.add("buttons", cardSectionButtonListButtons);

  JsonObject cardSectionButtonListWidget = new JsonObject();
  cardSectionButtonListWidget.add("buttonList", cardSectionButtonList);

  // Builds the form inputs with error texts for invalid values.
  JsonArray cardSection = new JsonArray();
  if (errors.containsKey("name")) {
    cardSection.add(createErrorTextParagraph(errors.get("name").toString()));
  }
  cardSection.add(cardSectionTextInput1Widget);
  if (errors.containsKey("description")) {
    cardSection.add(createErrorTextParagraph(errors.get("description").toString()));
  }
  cardSection.add(cardSectionTextInput2Widget);
  if (errors.containsKey("priority")) {
    cardSection.add(createErrorTextParagraph(errors.get("priority").toString()));
  }
  cardSection.add(cardSectionSelectionInput1Widget);
  if (errors.containsKey("impact")) {
    cardSection.add(createErrorTextParagraph(errors.get("impact").toString()));
  }

  cardSection.add(cardSectionSelectionInput2Widget);
  cardSection.add(cardSectionButtonListWidget);

  JsonObject cardSectionWidgets = new JsonObject();
  cardSectionWidgets.add("widgets", cardSection);

  JsonArray sections = new JsonArray();
  sections.add(cardSectionWidgets);

  JsonObject card = new JsonObject();
  card.add("header", cardHeader);
  card.add("sections", sections);

  JsonObject navigation = new JsonObject();
  if (isUpdate) {
    navigation.add("updateCard", card);
  } else {
    navigation.add("pushCard", card);
  }

  JsonArray navigations = new JsonArray();
  navigations.add(navigation);

  JsonObject action = new JsonObject();
  action.add("navigations", navigations);

  JsonObject renderActions = new JsonObject();
  renderActions.add("action", action);

  if (!isUpdate) {
    return renderActions;
  }

  JsonObject update = new JsonObject();
  update.add("renderActions", renderActions);

  return update;
}

A função createCaseInputCard renderiza o seguinte card:

Card com entradas de formulário

O card inclui entradas de texto, um menu suspenso e uma caixa de seleção. Ele também tem um botão de texto com uma ação onClick que executa outra função para processar o envio do formulário de criação.

Depois que o usuário preenche o formulário e clica em Criar, o complemento envia as entradas do formulário para a função de ação onClick, chamada de submitCaseCreationForm no nosso exemplo. Nesse ponto, o complemento pode validar as entradas e usá-las para criar o recurso no serviço de terceiros.

Processar envios de formulário

Depois que um usuário envia o formulário de criação, a função associada à ação onClick é executada. Para uma experiência ideal do usuário, seu complemento precisa processar envios de formulários bem-sucedidos e com erros.

Processar a criação de recursos bem-sucedida

A função onClick do seu complemento precisa criar o recurso no serviço de terceiros e gerar um URL que aponte para ele.

Para comunicar o URL do recurso de volta aos Documentos para a criação de ícones, a função onClick precisa retornar um SubmitFormResponse com uma matriz de um elemento em renderActions.action.links que aponta para um link. O título do link precisa representar o título do recurso criado, e o URL precisa apontar para esse recurso.

O exemplo a seguir mostra uma SubmitFormResponse para um recurso criado:

Apps Script Node.js Python Java
apps-script/3p-resources/3p-resources.gs
/**
 * Returns a submit form response that inserts a link into the document.
 * 
 * @param {string} title The title of the link to insert.
 * @param {string} url The URL of the link to insert.
 * @return {!SubmitFormResponse} The resulting submit form response.
 */
function createLinkRenderAction(title, url) {
  return {
    renderActions: {
      action: {
        links: [{
          title: title,
          url: url
        }]
      }
    }
  };
}
node/3p-resources/index.js
/**
 * Returns a submit form response that inserts a link into the document.
 * 
 * @param {string} title The title of the link to insert.
 * @param {string} url The URL of the link to insert.
 * @return {!SubmitFormResponse} The resulting submit form response.
 */
function createLinkRenderAction(title, url) {
  return {
    renderActions: {
      action: {
        links: [{
          title: title,
          url: url
        }]
      }
    }
  };
}
python/3p-resources/create_3p_resources/main.py
def create_link_render_action(title, url):
    """Returns a submit form response that inserts a link into the document.
    Args:
      title: The title of the link to insert.
      url: The URL of the link to insert.
    Returns:
      The resulting submit form response.
    """
    return {
        "renderActions": {
            "action": {
                "links": [{
                    "title": title,
                    "url": url
                }]
            }
        }
    }
java/3p-resources/src/main/java/Create3pResources.java
/**
 * Returns a submit form response that inserts a link into the document.
 * 
 * @param title The title of the link to insert.
 * @param url The URL of the link to insert.
 * @return The resulting submit form response.
 */
JsonObject createLinkRenderAction(String title, String url) {
  JsonObject link = new JsonObject();
  link.add("title", new JsonPrimitive(title));
  link.add("url", new JsonPrimitive(url));

  JsonArray links = new JsonArray();
  links.add(link);

  JsonObject action = new JsonObject();
  action.add("links", links);

  JsonObject renderActions = new JsonObject();
  renderActions.add("action", action);

  JsonObject linkRenderAction = new JsonObject();
  linkRenderAction.add("renderActions", renderActions);

  return linkRenderAction;
}

Depois que o SubmitFormResponse é retornado, a caixa de diálogo modal é fechada e o complemento insere um ícone no documento. Quando os usuários mantêm o ponteiro sobre esse ícone, ele invoca o acionador de visualização de link associado. Verifique se o complemento não insere ícones com padrões de link que não são compatíveis com os acionadores de visualização de link.

Solucionar erros

Se um usuário tentar enviar um formulário com campos inválidos, em vez de retornar um SubmitFormResponse com um link, o complemento vai retornar uma ação de renderização que mostra um erro usando uma navegação updateCard. Isso permite que o usuário veja o que fez errado e tente novamente. Consulte updateCard(card) para o Apps Script e updateCard para outros ambientes de execução. As notificações e as navegações pushCard não são compatíveis.

Exemplo de tratamento de erros

O exemplo a seguir mostra o código que é invocado quando um usuário envia o formulário. Se as entradas forem inválidas, o cartão será atualizado e mostrará mensagens de erro. Se as entradas forem válidas, o complemento vai retornar um SubmitFormResponse com um link para o recurso criado.

Apps Script Node.js Python Java
apps-script/3p-resources/3p-resources.gs
/**
 * Submits the creation form. If valid, returns a render action
 * that inserts a new link into the document. If invalid, returns an
 * update card navigation that re-renders the creation form with error messages.
 * 
 * @param {!Object} event The event object with form input values.
 * @return {!ActionResponse|!SubmitFormResponse} The resulting response.
 */
function submitCaseCreationForm(event) {
  const caseDetails = {
    name: event.formInput.name,
    description: event.formInput.description,
    priority: event.formInput.priority,
    impact: !!event.formInput.impact,
  };

  const errors = validateFormInputs(caseDetails);
  if (Object.keys(errors).length > 0) {
    return createCaseInputCard(event, errors, /* isUpdate= */ true);
  } else {
    const title = `Case ${caseDetails.name}`;
    // Adds the case details as parameters to the generated link URL.
    const url = 'https://example.com/support/cases/?' + generateQuery(caseDetails);
    return createLinkRenderAction(title, url);
  }
}

/**
* Build a query path with URL parameters.
*
* @param {!Map} parameters A map with the URL parameters.
* @return {!string} The resulting query path.
*/
function generateQuery(parameters) {
  return Object.entries(parameters).flatMap(([k, v]) =>
    Array.isArray(v) ? v.map(e => `${k}=${encodeURIComponent(e)}`) : `${k}=${encodeURIComponent(v)}`
  ).join("&");
}
node/3p-resources/index.js
/**
 * Submits the creation form. If valid, returns a render action
 * that inserts a new link into the document. If invalid, returns an
 * update card navigation that re-renders the creation form with error messages.
 * 
 * @param {!Object} event The event object with form input values.
 * @return {!ActionResponse|!SubmitFormResponse} The resulting response.
 */
function submitCaseCreationForm(event) {
  const caseDetails = {
    name: event.commonEventObject.formInputs?.name?.stringInputs?.value[0],
    description: event.commonEventObject.formInputs?.description?.stringInputs?.value[0],
    priority: event.commonEventObject.formInputs?.priority?.stringInputs?.value[0],
    impact: !!event.commonEventObject.formInputs?.impact?.stringInputs?.value[0],
  };

  const errors = validateFormInputs(caseDetails);
  if (Object.keys(errors).length > 0) {
    return createCaseInputCard(event, errors, /* isUpdate= */ true);
  } else {
    const title = `Case ${caseDetails.name}`;
    // Adds the case details as parameters to the generated link URL.
    const url = new URL('https://example.com/support/cases/');
    for (const [key, value] of Object.entries(caseDetails)) {
      url.searchParams.append(key, value);
    }
    return createLinkRenderAction(title, url.href);
  }
}
python/3p-resources/create_3p_resources/main.py
def submit_case_creation_form(event):
    """Submits the creation form.

    If valid, returns a render action that inserts a new link
    into the document. If invalid, returns an update card navigation that
    re-renders the creation form with error messages.
    Args:
      event: The event object with form input values.
    Returns:
      The resulting response.
    """
    formInputs = event["commonEventObject"]["formInputs"] if "formInputs" in event["commonEventObject"] else None
    case_details = {
        "name":  None,
        "description": None,
        "priority": None,
        "impact": None,
    }
    if formInputs is not None:
        case_details["name"] = formInputs["name"]["stringInputs"]["value"][0] if "name" in formInputs else None
        case_details["description"] = formInputs["description"]["stringInputs"]["value"][0] if "description" in formInputs else None
        case_details["priority"] = formInputs["priority"]["stringInputs"]["value"][0] if "priority" in formInputs else None
        case_details["impact"] = formInputs["impact"]["stringInputs"]["value"][0] if "impact" in formInputs else False

    errors = validate_form_inputs(case_details)
    if len(errors) > 0:
        return create_case_input_card(event, errors, True) # Update mode
    else:
        title = f'Case {case_details["name"]}'
        # Adds the case details as parameters to the generated link URL.
        url = "https://example.com/support/cases/?" + urlencode(case_details)
        return create_link_render_action(title, url)
java/3p-resources/src/main/java/Create3pResources.java
/**
 * Submits the creation form. If valid, returns a render action
 * that inserts a new link into the document. If invalid, returns an
 * update card navigation that re-renders the creation form with error messages.
 * 
 * @param event The event object with form input values.
 * @return The resulting response.
 */
JsonObject submitCaseCreationForm(JsonObject event) throws Exception {
  JsonObject formInputs = event.getAsJsonObject("commonEventObject").getAsJsonObject("formInputs");
  Map<String, String> caseDetails = new HashMap<String, String>();
  if (formInputs != null) {
    if (formInputs.has("name")) {
      caseDetails.put("name", formInputs.getAsJsonObject("name").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
    }
    if (formInputs.has("description")) {
      caseDetails.put("description", formInputs.getAsJsonObject("description").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
    }
    if (formInputs.has("priority")) {
      caseDetails.put("priority", formInputs.getAsJsonObject("priority").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
    }
    if (formInputs.has("impact")) {
      caseDetails.put("impact", formInputs.getAsJsonObject("impact").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
    }
  }

  Map<String, String> errors = validateFormInputs(caseDetails);
  if (errors.size() > 0) {
    return createCaseInputCard(event, errors, /* isUpdate= */ true);
  } else {
    String title = String.format("Case %s", caseDetails.get("name"));
    // Adds the case details as parameters to the generated link URL.
    URIBuilder uriBuilder = new URIBuilder("https://example.com/support/cases/");
    for (String caseDetailKey : caseDetails.keySet()) {
      uriBuilder.addParameter(caseDetailKey, caseDetails.get(caseDetailKey));
    }
    return createLinkRenderAction(title, uriBuilder.build().toURL().toString());
  }
}

O exemplo de código abaixo valida as entradas do formulário e cria mensagens de erro para entradas inválidas:

Apps Script Node.js Python Java
apps-script/3p-resources/3p-resources.gs
/**
 * Validates case creation form input values.
 * 
 * @param {!Object} caseDetails The values of each form input submitted by the user.
 * @return {!Object} A map from field name to error message. An empty object
 *     represents a valid form submission.
 */
function validateFormInputs(caseDetails) {
  const errors = {};
  if (!caseDetails.name) {
    errors.name = 'You must provide a name';
  }
  if (!caseDetails.description) {
    errors.description = 'You must provide a description';
  }
  if (!caseDetails.priority) {
    errors.priority = 'You must provide a priority';
  }
  if (caseDetails.impact && caseDetails.priority !== 'P0' && caseDetails.priority !== 'P1') {
    errors.impact = 'If an issue blocks a critical customer operation, priority must be P0 or P1';
  }

  return errors;
}

/**
 * Returns a text paragraph with red text indicating a form field validation error.
 * 
 * @param {string} errorMessage A description of input value error.
 * @return {!TextParagraph} The resulting text paragraph.
 */
function createErrorTextParagraph(errorMessage) {
  return CardService.newTextParagraph()
    .setText('<font color=\"#BA0300\"><b>Error:</b> ' + errorMessage + '</font>');
}
node/3p-resources/index.js
/**
 * Validates case creation form input values.
 * 
 * @param {!Object} caseDetails The values of each form input submitted by the user.
 * @return {!Object} A map from field name to error message. An empty object
 *     represents a valid form submission.
 */
function validateFormInputs(caseDetails) {
  const errors = {};
  if (caseDetails.name === undefined) {
    errors.name = 'You must provide a name';
  }
  if (caseDetails.description === undefined) {
    errors.description = 'You must provide a description';
  }
  if (caseDetails.priority === undefined) {
    errors.priority = 'You must provide a priority';
  }
  if (caseDetails.impact && !(['P0', 'P1']).includes(caseDetails.priority)) {
    errors.impact = 'If an issue blocks a critical customer operation, priority must be P0 or P1';
  }

  return errors;
}

/**
 * Returns a text paragraph with red text indicating a form field validation error.
 * 
 * @param {string} errorMessage A description of input value error.
 * @return {!TextParagraph} The resulting text paragraph.
 */
function createErrorTextParagraph(errorMessage) {
  return {
    textParagraph: {
      text: '<font color=\"#BA0300\"><b>Error:</b> ' + errorMessage + '</font>'
    }
  }
}
python/3p-resources/create_3p_resources/main.py
def validate_form_inputs(case_details):
    """Validates case creation form input values.
    Args:
      case_details: The values of each form input submitted by the user.
    Returns:
      A dict from field name to error message. An empty object represents a valid form submission.
    """
    errors = {}
    if case_details["name"] is None:
        errors["name"] = "You must provide a name"
    if case_details["description"] is None:
        errors["description"] = "You must provide a description"
    if case_details["priority"] is None:
        errors["priority"] = "You must provide a priority"
    if case_details["impact"] is not None and case_details["priority"] not in ['P0', 'P1']:
        errors["impact"] = "If an issue blocks a critical customer operation, priority must be P0 or P1"
    return errors


def create_error_text_paragraph(error_message):
    """Returns a text paragraph with red text indicating a form field validation error.
    Args:
      error_essage: A description of input value error.
    Returns:
      The resulting text paragraph.
    """
    return {
        "textParagraph": {
            "text": '<font color=\"#BA0300\"><b>Error:</b> ' + error_message + '</font>'
        }
    }
java/3p-resources/src/main/java/Create3pResources.java
/**
 * Validates case creation form input values.
 * 
 * @param caseDetails The values of each form input submitted by the user.
 * @return A map from field name to error message. An empty object
 *     represents a valid form submission.
 */
Map<String, String> validateFormInputs(Map<String, String> caseDetails) {
  Map<String, String> errors = new HashMap<String, String>();
  if (!caseDetails.containsKey("name")) {
    errors.put("name", "You must provide a name");
  }
  if (!caseDetails.containsKey("description")) {
    errors.put("description", "You must provide a description");
  }
  if (!caseDetails.containsKey("priority")) {
    errors.put("priority", "You must provide a priority");
  }
  if (caseDetails.containsKey("impact") && !Arrays.asList(new String[]{"P0", "P1"}).contains(caseDetails.get("priority"))) {
    errors.put("impact", "If an issue blocks a critical customer operation, priority must be P0 or P1");
  }

  return errors;
}

/**
 * Returns a text paragraph with red text indicating a form field validation error.
 * 
 * @param errorMessage A description of input value error.
 * @return The resulting text paragraph.
 */
JsonObject createErrorTextParagraph(String errorMessage) {
  JsonObject textParagraph = new JsonObject();
  textParagraph.add("text", new JsonPrimitive("<font color=\"#BA0300\"><b>Error:</b> " + errorMessage + "</font>"));

  JsonObject textParagraphWidget = new JsonObject();
  textParagraphWidget.add("textParagraph", textParagraph);

  return textParagraphWidget;
}

Exemplo completo: complemento de caso de suporte

O exemplo a seguir mostra um complemento do Google Workspace que mostra uma prévia de links para os casos de suporte de uma empresa e permite que os usuários criem casos de suporte no Documentos Google.

O exemplo faz o seguinte:

  • Gera um card com campos de formulário para criar um caso de suporte no menu Docs @.
  • Valida as entradas de formulário e retorna mensagens de erro para entradas inválidas.
  • Insere o nome e o link do caso de suporte criado no documento do Documentos como um ícone inteligente.
  • Mostra uma prévia do link do caso de suporte, como https://www.example.com/support/cases/1234. O ícone inteligente mostra um ícone, e o card de visualização inclui o nome, a prioridade e a descrição do caso.

Manifesto

Apps Script Node.js
apps-script/3p-resources/appsscript.json
{
  "timeZone": "America/New_York",
  "exceptionLogging": "STACKDRIVER",
  "runtimeVersion": "V8",
  "oauthScopes": [
    "https://www.googleapis.com/auth/workspace.linkpreview",
    "https://www.googleapis.com/auth/workspace.linkcreate"
  ],
  "addOns": {
    "common": {
      "name": "Manage support cases",
      "logoUrl": "https://developers.google.com/workspace/add-ons/images/support-icon.png",
      "layoutProperties": {
        "primaryColor": "#dd4b39"
      }
    },
    "docs": {
      "linkPreviewTriggers": [
        {
          "runFunction": "caseLinkPreview",
          "patterns": [
            {
              "hostPattern": "example.com",
              "pathPrefix": "support/cases"
            },
            {
              "hostPattern": "*.example.com",
              "pathPrefix": "cases"
            },
            {
              "hostPattern": "cases.example.com"
            }
          ],
          "labelText": "Support case",
          "localizedLabelText": {
            "es": "Caso de soporte"
          },
          "logoUrl": "https://developers.google.com/workspace/add-ons/images/support-icon.png"
        }
      ],
      "createActionTriggers": [
        {
          "id": "createCase",
          "labelText": "Create support case",
          "localizedLabelText": {
            "es": "Crear caso de soporte"
          },
          "runFunction": "createCaseInputCard",
          "logoUrl": "https://developers.google.com/workspace/add-ons/images/support-icon.png"
        }
      ]
    }
  }
}
node/3p-resources/deployment.json
{
  "oauthScopes": [
    "https://www.googleapis.com/auth/workspace.linkpreview",
    "https://www.googleapis.com/auth/workspace.linkcreate"
  ],
  "addOns": {
    "common": {
      "name": "Manage support cases",
      "logoUrl": "https://developers.google.com/workspace/add-ons/images/support-icon.png",
      "layoutProperties": {
        "primaryColor": "#dd4b39"
      }
    },
    "docs": {
      "linkPreviewTriggers": [
        {
          "runFunction": "$URL1",
          "patterns": [
            {
              "hostPattern": "example.com",
              "pathPrefix": "support/cases"
            },
            {
              "hostPattern": "*.example.com",
              "pathPrefix": "cases"
            },
            {
              "hostPattern": "cases.example.com"
            }
          ],
          "labelText": "Support case",
          "localizedLabelText": {
            "es": "Caso de soporte"
          },
          "logoUrl": "https://developers.google.com/workspace/add-ons/images/support-icon.png"
        }
      ],
      "createActionTriggers": [
        {
          "id": "createCase",
          "labelText": "Create support case",
          "localizedLabelText": {
            "es": "Crear caso de soporte"
          },
          "runFunction": "$URL2",
          "logoUrl": "https://developers.google.com/workspace/add-ons/images/support-icon.png"
        }
      ]
    }
  }
}

Código

Apps Script Node.js Python Java
apps-script/3p-resources/3p-resources.gs
/**
 * Copyright 2024 Google LLC
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     https://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
* Entry point for a support case link preview.
*
* @param {!Object} event The event object.
* @return {!Card} The resulting preview link card.
*/
function caseLinkPreview(event) {

  // If the event object URL matches a specified pattern for support case links.
  if (event.docs.matchedUrl.url) {

    // Uses the event object to parse the URL and identify the case details.
    const caseDetails = parseQuery(event.docs.matchedUrl.url);

    // Builds a preview card with the case name, and description
    const caseHeader = CardService.newCardHeader()
      .setTitle(`Case ${caseDetails["name"][0]}`);
    const caseDescription = CardService.newTextParagraph()
      .setText(caseDetails["description"][0]);

    // Returns the card.
    // Uses the text from the card's header for the title of the smart chip.
    return CardService.newCardBuilder()
      .setHeader(caseHeader)
      .addSection(CardService.newCardSection().addWidget(caseDescription))
      .build();
  }
}

/**
* Extracts the URL parameters from the given URL.
*
* @param {!string} url The URL to parse.
* @return {!Map} A map with the extracted URL parameters.
*/
function parseQuery(url) {
  const query = url.split("?")[1];
  if (query) {
    return query.split("&")
    .reduce(function(o, e) {
      var temp = e.split("=");
      var key = temp[0].trim();
      var value = temp[1].trim();
      value = isNaN(value) ? value : Number(value);
      if (o[key]) {
        o[key].push(value);
      } else {
        o[key] = [value];
      }
      return o;
    }, {});
  }
  return null;
}



/**
 * Produces a support case creation form card.
 * 
 * @param {!Object} event The event object.
 * @param {!Object=} errors An optional map of per-field error messages.
 * @param {boolean} isUpdate Whether to return the form as an update card navigation.
 * @return {!Card|!ActionResponse} The resulting card or action response.
 */
function createCaseInputCard(event, errors, isUpdate) {

  const cardHeader = CardService.newCardHeader()
    .setTitle('Create a support case')

  const cardSectionTextInput1 = CardService.newTextInput()
    .setFieldName('name')
    .setTitle('Name')
    .setMultiline(false);

  const cardSectionTextInput2 = CardService.newTextInput()
    .setFieldName('description')
    .setTitle('Description')
    .setMultiline(true);

  const cardSectionSelectionInput1 = CardService.newSelectionInput()
    .setFieldName('priority')
    .setTitle('Priority')
    .setType(CardService.SelectionInputType.DROPDOWN)
    .addItem('P0', 'P0', false)
    .addItem('P1', 'P1', false)
    .addItem('P2', 'P2', false)
    .addItem('P3', 'P3', false);

  const cardSectionSelectionInput2 = CardService.newSelectionInput()
    .setFieldName('impact')
    .setTitle('Impact')
    .setType(CardService.SelectionInputType.CHECK_BOX)
    .addItem('Blocks a critical customer operation', 'Blocks a critical customer operation', false);

  const cardSectionButtonListButtonAction = CardService.newAction()
    .setPersistValues(true)
    .setFunctionName('submitCaseCreationForm')
    .setParameters({});

  const cardSectionButtonListButton = CardService.newTextButton()
    .setText('Create')
    .setTextButtonStyle(CardService.TextButtonStyle.TEXT)
    .setOnClickAction(cardSectionButtonListButtonAction);

  const cardSectionButtonList = CardService.newButtonSet()
    .addButton(cardSectionButtonListButton);

  // Builds the form inputs with error texts for invalid values.
  const cardSection = CardService.newCardSection();
  if (errors?.name) {
    cardSection.addWidget(createErrorTextParagraph(errors.name));
  }
  cardSection.addWidget(cardSectionTextInput1);
  if (errors?.description) {
    cardSection.addWidget(createErrorTextParagraph(errors.description));
  }
  cardSection.addWidget(cardSectionTextInput2);
  if (errors?.priority) {
    cardSection.addWidget(createErrorTextParagraph(errors.priority));
  }
  cardSection.addWidget(cardSectionSelectionInput1);
  if (errors?.impact) {
    cardSection.addWidget(createErrorTextParagraph(errors.impact));
  }

  cardSection.addWidget(cardSectionSelectionInput2);
  cardSection.addWidget(cardSectionButtonList);

  const card = CardService.newCardBuilder()
    .setHeader(cardHeader)
    .addSection(cardSection)
    .build();

  if (isUpdate) {
    return CardService.newActionResponseBuilder()
      .setNavigation(CardService.newNavigation().updateCard(card))
      .build();
  } else {
    return card;
  }
}


/**
 * Submits the creation form. If valid, returns a render action
 * that inserts a new link into the document. If invalid, returns an
 * update card navigation that re-renders the creation form with error messages.
 * 
 * @param {!Object} event The event object with form input values.
 * @return {!ActionResponse|!SubmitFormResponse} The resulting response.
 */
function submitCaseCreationForm(event) {
  const caseDetails = {
    name: event.formInput.name,
    description: event.formInput.description,
    priority: event.formInput.priority,
    impact: !!event.formInput.impact,
  };

  const errors = validateFormInputs(caseDetails);
  if (Object.keys(errors).length > 0) {
    return createCaseInputCard(event, errors, /* isUpdate= */ true);
  } else {
    const title = `Case ${caseDetails.name}`;
    // Adds the case details as parameters to the generated link URL.
    const url = 'https://example.com/support/cases/?' + generateQuery(caseDetails);
    return createLinkRenderAction(title, url);
  }
}

/**
* Build a query path with URL parameters.
*
* @param {!Map} parameters A map with the URL parameters.
* @return {!string} The resulting query path.
*/
function generateQuery(parameters) {
  return Object.entries(parameters).flatMap(([k, v]) =>
    Array.isArray(v) ? v.map(e => `${k}=${encodeURIComponent(e)}`) : `${k}=${encodeURIComponent(v)}`
  ).join("&");
}


/**
 * Validates case creation form input values.
 * 
 * @param {!Object} caseDetails The values of each form input submitted by the user.
 * @return {!Object} A map from field name to error message. An empty object
 *     represents a valid form submission.
 */
function validateFormInputs(caseDetails) {
  const errors = {};
  if (!caseDetails.name) {
    errors.name = 'You must provide a name';
  }
  if (!caseDetails.description) {
    errors.description = 'You must provide a description';
  }
  if (!caseDetails.priority) {
    errors.priority = 'You must provide a priority';
  }
  if (caseDetails.impact && caseDetails.priority !== 'P0' && caseDetails.priority !== 'P1') {
    errors.impact = 'If an issue blocks a critical customer operation, priority must be P0 or P1';
  }

  return errors;
}

/**
 * Returns a text paragraph with red text indicating a form field validation error.
 * 
 * @param {string} errorMessage A description of input value error.
 * @return {!TextParagraph} The resulting text paragraph.
 */
function createErrorTextParagraph(errorMessage) {
  return CardService.newTextParagraph()
    .setText('<font color=\"#BA0300\"><b>Error:</b> ' + errorMessage + '</font>');
}


/**
 * Returns a submit form response that inserts a link into the document.
 * 
 * @param {string} title The title of the link to insert.
 * @param {string} url The URL of the link to insert.
 * @return {!SubmitFormResponse} The resulting submit form response.
 */
function createLinkRenderAction(title, url) {
  return {
    renderActions: {
      action: {
        links: [{
          title: title,
          url: url
        }]
      }
    }
  };
}
node/3p-resources/index.js
/**
 * Copyright 2024 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Responds to any HTTP request related to link previews.
 *
 * @param {Object} req An HTTP request context.
 * @param {Object} res An HTTP response context.
 */
exports.createLinkPreview = (req, res) => {
  const event = req.body;
  if (event.docs.matchedUrl.url) {
    const url = event.docs.matchedUrl.url;
    const parsedUrl = new URL(url);
    // If the event object URL matches a specified pattern for preview links.
    if (parsedUrl.hostname === 'example.com') {
      if (parsedUrl.pathname.startsWith('/support/cases/')) {
        return res.json(caseLinkPreview(parsedUrl));
      }
    }
  }
};


/**
 * 
 * A support case link preview.
 *
 * @param {!URL} url The event object.
 * @return {!Card} The resulting preview link card.
 */
function caseLinkPreview(url) {
  // Builds a preview card with the case name, and description
  // Uses the text from the card's header for the title of the smart chip.
  // Parses the URL and identify the case details.
  const name = `Case ${url.searchParams.get("name")}`;
  return {
    action: {
      linkPreview: {
        title: name,
        previewCard: {
          header: {
            title: name
          },
          sections: [{
            widgets: [{
              textParagraph: {
                text: url.searchParams.get("description")
              }
            }]
          }]
        }
      }
    }
  };
}



/**
 * Responds to any HTTP request related to 3P resource creations.
 *
 * @param {Object} req An HTTP request context.
 * @param {Object} res An HTTP response context.
 */
exports.create3pResources = (req, res) => {
  const event = req.body;
  if (event.commonEventObject.parameters?.submitCaseCreationForm) {
    res.json(submitCaseCreationForm(event));
  } else {
    res.json(createCaseInputCard(event));
  }
};


/**
 * Produces a support case creation form card.
 * 
 * @param {!Object} event The event object.
 * @param {!Object=} errors An optional map of per-field error messages.
 * @param {boolean} isUpdate Whether to return the form as an update card navigation.
 * @return {!Card|!ActionResponse} The resulting card or action response.
 */
function createCaseInputCard(event, errors, isUpdate) {

  const cardHeader1 = {
    title: "Create a support case"
  };

  const cardSection1TextInput1 = {
    textInput: {
      name: "name",
      label: "Name"
    }
  };

  const cardSection1TextInput2 = {
    textInput: {
      name: "description",
      label: "Description",
      type: "MULTIPLE_LINE"
    }
  };

  const cardSection1SelectionInput1 = {
    selectionInput: {
      name: "priority",
      label: "Priority",
      type: "DROPDOWN",
      items: [{
        text: "P0",
        value: "P0"
      }, {
        text: "P1",
        value: "P1"
      }, {
        text: "P2",
        value: "P2"
      }, {
        text: "P3",
        value: "P3"
      }]
    }
  };

  const cardSection1SelectionInput2 = {
    selectionInput: {
      name: "impact",
      label: "Impact",
      items: [{
        text: "Blocks a critical customer operation",
        value: "Blocks a critical customer operation"
      }]
    }
  };

  const cardSection1ButtonList1Button1Action1 = {
    function: process.env.URL,
    parameters: [
      {
        key: "submitCaseCreationForm",
        value: true
      }
    ],
    persistValues: true
  };

  const cardSection1ButtonList1Button1 = {
    text: "Create",
    onClick: {
      action: cardSection1ButtonList1Button1Action1
    }
  };

  const cardSection1ButtonList1 = {
    buttonList: {
      buttons: [cardSection1ButtonList1Button1]
    }
  };

  // Builds the creation form and adds error text for invalid inputs.
  const cardSection1 = [];
  if (errors?.name) {
    cardSection1.push(createErrorTextParagraph(errors.name));
  }
  cardSection1.push(cardSection1TextInput1);
  if (errors?.description) {
    cardSection1.push(createErrorTextParagraph(errors.description));
  }
  cardSection1.push(cardSection1TextInput2);
  if (errors?.priority) {
    cardSection1.push(createErrorTextParagraph(errors.priority));
  }
  cardSection1.push(cardSection1SelectionInput1);
  if (errors?.impact) {
    cardSection1.push(createErrorTextParagraph(errors.impact));
  }

  cardSection1.push(cardSection1SelectionInput2);
  cardSection1.push(cardSection1ButtonList1);

  const card = {
    header: cardHeader1,
    sections: [{
      widgets: cardSection1
    }]
  };

  if (isUpdate) {
    return {
      renderActions: {
        action: {
          navigations: [{
            updateCard: card
          }]
        }
      }
    };
  } else {
    return {
      action: {
        navigations: [{
          pushCard: card
        }]
      }
    };
  }
}


/**
 * Submits the creation form. If valid, returns a render action
 * that inserts a new link into the document. If invalid, returns an
 * update card navigation that re-renders the creation form with error messages.
 * 
 * @param {!Object} event The event object with form input values.
 * @return {!ActionResponse|!SubmitFormResponse} The resulting response.
 */
function submitCaseCreationForm(event) {
  const caseDetails = {
    name: event.commonEventObject.formInputs?.name?.stringInputs?.value[0],
    description: event.commonEventObject.formInputs?.description?.stringInputs?.value[0],
    priority: event.commonEventObject.formInputs?.priority?.stringInputs?.value[0],
    impact: !!event.commonEventObject.formInputs?.impact?.stringInputs?.value[0],
  };

  const errors = validateFormInputs(caseDetails);
  if (Object.keys(errors).length > 0) {
    return createCaseInputCard(event, errors, /* isUpdate= */ true);
  } else {
    const title = `Case ${caseDetails.name}`;
    // Adds the case details as parameters to the generated link URL.
    const url = new URL('https://example.com/support/cases/');
    for (const [key, value] of Object.entries(caseDetails)) {
      url.searchParams.append(key, value);
    }
    return createLinkRenderAction(title, url.href);
  }
}


/**
 * Validates case creation form input values.
 * 
 * @param {!Object} caseDetails The values of each form input submitted by the user.
 * @return {!Object} A map from field name to error message. An empty object
 *     represents a valid form submission.
 */
function validateFormInputs(caseDetails) {
  const errors = {};
  if (caseDetails.name === undefined) {
    errors.name = 'You must provide a name';
  }
  if (caseDetails.description === undefined) {
    errors.description = 'You must provide a description';
  }
  if (caseDetails.priority === undefined) {
    errors.priority = 'You must provide a priority';
  }
  if (caseDetails.impact && !(['P0', 'P1']).includes(caseDetails.priority)) {
    errors.impact = 'If an issue blocks a critical customer operation, priority must be P0 or P1';
  }

  return errors;
}

/**
 * Returns a text paragraph with red text indicating a form field validation error.
 * 
 * @param {string} errorMessage A description of input value error.
 * @return {!TextParagraph} The resulting text paragraph.
 */
function createErrorTextParagraph(errorMessage) {
  return {
    textParagraph: {
      text: '<font color=\"#BA0300\"><b>Error:</b> ' + errorMessage + '</font>'
    }
  }
}


/**
 * Returns a submit form response that inserts a link into the document.
 * 
 * @param {string} title The title of the link to insert.
 * @param {string} url The URL of the link to insert.
 * @return {!SubmitFormResponse} The resulting submit form response.
 */
function createLinkRenderAction(title, url) {
  return {
    renderActions: {
      action: {
        links: [{
          title: title,
          url: url
        }]
      }
    }
  };
}
python/3p-resources/create_3p_resources/main.py
# Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License")
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https:#www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from typing import Any, Mapping
from urllib.parse import urlencode

import os
import flask
import functions_framework


@functions_framework.http
def create_3p_resources(req: flask.Request):
    """Responds to any HTTP request related to 3P resource creations.
    Args:
      req: An HTTP request context.
    Returns:
      An HTTP response context.
    """
    event = req.get_json(silent=True)
    parameters = event["commonEventObject"]["parameters"] if "parameters" in event["commonEventObject"] else None
    if parameters is not None and parameters["submitCaseCreationForm"]:
        return submit_case_creation_form(event)
    else:
        return create_case_input_card(event)




def create_case_input_card(event, errors = {}, isUpdate = False):
    """Produces a support case creation form card.
    Args:
      event: The event object.
      errors: An optional dict of per-field error messages.
      isUpdate: Whether to return the form as an update card navigation.
    Returns:
      The resulting card or action response.
    """
    card_header1 = {
        "title": "Create a support case"
    }

    card_section1_text_input1 = {
        "textInput": {
            "name": "name",
            "label": "Name"
        }
    }

    card_section1_text_input2 = {
        "textInput": {
            "name": "description",
            "label": "Description",
            "type": "MULTIPLE_LINE"
        }
    }

    card_section1_selection_input1 = {
        "selectionInput": {
            "name": "priority",
            "label": "Priority",
            "type": "DROPDOWN",
            "items": [{
                "text": "P0",
                "value": "P0"
            }, {
                "text": "P1",
                "value": "P1"
            }, {
                "text": "P2",
                "value": "P2"
            }, {
                "text": "P3",
                "value": "P3"
            }]
        }
    }

    card_section1_selection_input2 = {
        "selectionInput": {
            "name": "impact",
            "label": "Impact",
            "items": [{
                "text": "Blocks a critical customer operation",
                "value": "Blocks a critical customer operation"
            }]
        }
    }

    card_section1_button_list1_button1_action1 = {
        "function": os.environ["URL"],
        "parameters": [
        {
            "key": "submitCaseCreationForm",
            "value": True
        }
        ],
        "persistValues": True
    }

    card_section1_button_list1_button1 = {
        "text": "Create",
        "onClick": {
            "action": card_section1_button_list1_button1_action1
        }
    }

    card_section1_button_list1 = {
        "buttonList": {
            "buttons": [card_section1_button_list1_button1]
        }
    }

    # Builds the creation form and adds error text for invalid inputs.
    card_section1 = []
    if "name" in errors:
        card_section1.append(create_error_text_paragraph(errors["name"]))
    card_section1.append(card_section1_text_input1)
    if "description" in errors:
        card_section1.append(create_error_text_paragraph(errors["description"]))
    card_section1.append(card_section1_text_input2)
    if "priority" in errors:
        card_section1.append(create_error_text_paragraph(errors["priority"]))
    card_section1.append(card_section1_selection_input1)
    if "impact" in errors:
        card_section1.append(create_error_text_paragraph(errors["impact"]))

    card_section1.append(card_section1_selection_input2)
    card_section1.append(card_section1_button_list1)

    card = {
        "header": card_header1,
        "sections": [{
            "widgets": card_section1
        }]
    }

    if isUpdate:
        return {
            "renderActions": {
                "action": {
                        "navigations": [{
                        "updateCard": card
                    }]
                }
            }
        }
    else:
        return {
            "action": {
                "navigations": [{
                    "pushCard": card
                }]
            }
        }




def submit_case_creation_form(event):
    """Submits the creation form.

    If valid, returns a render action that inserts a new link
    into the document. If invalid, returns an update card navigation that
    re-renders the creation form with error messages.
    Args:
      event: The event object with form input values.
    Returns:
      The resulting response.
    """
    formInputs = event["commonEventObject"]["formInputs"] if "formInputs" in event["commonEventObject"] else None
    case_details = {
        "name":  None,
        "description": None,
        "priority": None,
        "impact": None,
    }
    if formInputs is not None:
        case_details["name"] = formInputs["name"]["stringInputs"]["value"][0] if "name" in formInputs else None
        case_details["description"] = formInputs["description"]["stringInputs"]["value"][0] if "description" in formInputs else None
        case_details["priority"] = formInputs["priority"]["stringInputs"]["value"][0] if "priority" in formInputs else None
        case_details["impact"] = formInputs["impact"]["stringInputs"]["value"][0] if "impact" in formInputs else False

    errors = validate_form_inputs(case_details)
    if len(errors) > 0:
        return create_case_input_card(event, errors, True) # Update mode
    else:
        title = f'Case {case_details["name"]}'
        # Adds the case details as parameters to the generated link URL.
        url = "https://example.com/support/cases/?" + urlencode(case_details)
        return create_link_render_action(title, url)




def validate_form_inputs(case_details):
    """Validates case creation form input values.
    Args:
      case_details: The values of each form input submitted by the user.
    Returns:
      A dict from field name to error message. An empty object represents a valid form submission.
    """
    errors = {}
    if case_details["name"] is None:
        errors["name"] = "You must provide a name"
    if case_details["description"] is None:
        errors["description"] = "You must provide a description"
    if case_details["priority"] is None:
        errors["priority"] = "You must provide a priority"
    if case_details["impact"] is not None and case_details["priority"] not in ['P0', 'P1']:
        errors["impact"] = "If an issue blocks a critical customer operation, priority must be P0 or P1"
    return errors


def create_error_text_paragraph(error_message):
    """Returns a text paragraph with red text indicating a form field validation error.
    Args:
      error_essage: A description of input value error.
    Returns:
      The resulting text paragraph.
    """
    return {
        "textParagraph": {
            "text": '<font color=\"#BA0300\"><b>Error:</b> ' + error_message + '</font>'
        }
    }




def create_link_render_action(title, url):
    """Returns a submit form response that inserts a link into the document.
    Args:
      title: The title of the link to insert.
      url: The URL of the link to insert.
    Returns:
      The resulting submit form response.
    """
    return {
        "renderActions": {
            "action": {
                "links": [{
                    "title": title,
                    "url": url
                }]
            }
        }
    }

O código a seguir mostra como implementar uma visualização de link para o recurso criado:

python/3p-resources/create_link_preview/main.py
# Copyright 2023 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License")
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https:#www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from typing import Any, Mapping
from urllib.parse import urlparse, parse_qs

import flask
import functions_framework


@functions_framework.http
def create_link_preview(req: flask.Request):
    """Responds to any HTTP request related to link previews.
    Args:
      req: An HTTP request context.
    Returns:
      An HTTP response context.
    """
    event = req.get_json(silent=True)
    if event["docs"]["matchedUrl"]["url"]:
        url = event["docs"]["matchedUrl"]["url"]
        parsed_url = urlparse(url)
        # If the event object URL matches a specified pattern for preview links.
        if parsed_url.hostname == "example.com":
            if parsed_url.path.startswith("/support/cases/"):
                return case_link_preview(parsed_url)

    return {}




def case_link_preview(url):
    """A support case link preview.
    Args:
      url: A matching URL.
    Returns:
      The resulting preview link card.
    """

    # Parses the URL and identify the case details.
    query_string = parse_qs(url.query)
    name = f'Case {query_string["name"][0]}'
    # Uses the text from the card's header for the title of the smart chip.
    return {
        "action": {
            "linkPreview": {
                "title": name,
                "previewCard": {
                    "header": {
                        "title": name
                    },
                    "sections": [{
                        "widgets": [{
                            "textParagraph": {
                                "text": query_string["description"][0]
                            }
                        }]
                    }],
                }
            }
        }
    }

java/3p-resources/src/main/java/Create3pResources.java
/**
 * Copyright 2024 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.client.utils.URIBuilder;

import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;

public class Create3pResources implements HttpFunction {
  private static final Gson gson = new Gson();

  /**
   * Responds to any HTTP request related to 3p resource creations.
   *
   * @param request  An HTTP request context.
   * @param response An HTTP response context.
   */
  @Override
  public void service(HttpRequest request, HttpResponse response) throws Exception {
    JsonObject event = gson.fromJson(request.getReader(), JsonObject.class);
    JsonObject parameters = event.getAsJsonObject("commonEventObject").getAsJsonObject("parameters");
    if (parameters != null && parameters.has("submitCaseCreationForm") && parameters.get("submitCaseCreationForm").getAsBoolean()) {
      response.getWriter().write(gson.toJson(submitCaseCreationForm(event)));
    } else {
      response.getWriter().write(gson.toJson(createCaseInputCard(event, new HashMap<String, String>(), false)));
    }
  }


  /**
   * Produces a support case creation form.
   * 
   * @param event The event object.
   * @param errors A map of per-field error messages.
   * @param isUpdate Whether to return the form as an update card navigation.
   * @return The resulting card or action response.
   */
  JsonObject createCaseInputCard(JsonObject event, Map<String, String> errors, boolean isUpdate) {
    JsonObject cardHeader = new JsonObject();
    cardHeader.add("title", new JsonPrimitive("Create a support case"));

    JsonObject cardSectionTextInput1 = new JsonObject();
    cardSectionTextInput1.add("name", new JsonPrimitive("name"));
    cardSectionTextInput1.add("label", new JsonPrimitive("Name"));

    JsonObject cardSectionTextInput1Widget = new JsonObject();
    cardSectionTextInput1Widget.add("textInput", cardSectionTextInput1);

    JsonObject cardSectionTextInput2 = new JsonObject();
    cardSectionTextInput2.add("name", new JsonPrimitive("description"));
    cardSectionTextInput2.add("label", new JsonPrimitive("Description"));
    cardSectionTextInput2.add("type", new JsonPrimitive("MULTIPLE_LINE"));

    JsonObject cardSectionTextInput2Widget = new JsonObject();
    cardSectionTextInput2Widget.add("textInput", cardSectionTextInput2);

    JsonObject cardSectionSelectionInput1ItemsItem1 = new JsonObject();
    cardSectionSelectionInput1ItemsItem1.add("text", new JsonPrimitive("P0"));
    cardSectionSelectionInput1ItemsItem1.add("value", new JsonPrimitive("P0"));

    JsonObject cardSectionSelectionInput1ItemsItem2 = new JsonObject();
    cardSectionSelectionInput1ItemsItem2.add("text", new JsonPrimitive("P1"));
    cardSectionSelectionInput1ItemsItem2.add("value", new JsonPrimitive("P1"));

    JsonObject cardSectionSelectionInput1ItemsItem3 = new JsonObject();
    cardSectionSelectionInput1ItemsItem3.add("text", new JsonPrimitive("P2"));
    cardSectionSelectionInput1ItemsItem3.add("value", new JsonPrimitive("P2"));

    JsonObject cardSectionSelectionInput1ItemsItem4 = new JsonObject();
    cardSectionSelectionInput1ItemsItem4.add("text", new JsonPrimitive("P3"));
    cardSectionSelectionInput1ItemsItem4.add("value", new JsonPrimitive("P3"));

    JsonArray cardSectionSelectionInput1Items = new JsonArray();
    cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem1);
    cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem2);
    cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem3);
    cardSectionSelectionInput1Items.add(cardSectionSelectionInput1ItemsItem4);

    JsonObject cardSectionSelectionInput1 = new JsonObject();
    cardSectionSelectionInput1.add("name", new JsonPrimitive("priority"));
    cardSectionSelectionInput1.add("label", new JsonPrimitive("Priority"));
    cardSectionSelectionInput1.add("type", new JsonPrimitive("DROPDOWN"));
    cardSectionSelectionInput1.add("items", cardSectionSelectionInput1Items);

    JsonObject cardSectionSelectionInput1Widget = new JsonObject();
    cardSectionSelectionInput1Widget.add("selectionInput", cardSectionSelectionInput1);

    JsonObject cardSectionSelectionInput2ItemsItem = new JsonObject();
    cardSectionSelectionInput2ItemsItem.add("text", new JsonPrimitive("Blocks a critical customer operation"));
    cardSectionSelectionInput2ItemsItem.add("value", new JsonPrimitive("Blocks a critical customer operation"));

    JsonArray cardSectionSelectionInput2Items = new JsonArray();
    cardSectionSelectionInput2Items.add(cardSectionSelectionInput2ItemsItem);

    JsonObject cardSectionSelectionInput2 = new JsonObject();
    cardSectionSelectionInput2.add("name", new JsonPrimitive("impact"));
    cardSectionSelectionInput2.add("label", new JsonPrimitive("Impact"));
    cardSectionSelectionInput2.add("items", cardSectionSelectionInput2Items);

    JsonObject cardSectionSelectionInput2Widget = new JsonObject();
    cardSectionSelectionInput2Widget.add("selectionInput", cardSectionSelectionInput2);

    JsonObject cardSectionButtonListButtonActionParametersParameter = new JsonObject();
    cardSectionButtonListButtonActionParametersParameter.add("key", new JsonPrimitive("submitCaseCreationForm"));
    cardSectionButtonListButtonActionParametersParameter.add("value", new JsonPrimitive(true));

    JsonArray cardSectionButtonListButtonActionParameters = new JsonArray();
    cardSectionButtonListButtonActionParameters.add(cardSectionButtonListButtonActionParametersParameter);

    JsonObject cardSectionButtonListButtonAction = new JsonObject();
    cardSectionButtonListButtonAction.add("function", new JsonPrimitive(System.getenv().get("URL")));
    cardSectionButtonListButtonAction.add("parameters", cardSectionButtonListButtonActionParameters);
    cardSectionButtonListButtonAction.add("persistValues", new JsonPrimitive(true));

    JsonObject cardSectionButtonListButtonOnCLick = new JsonObject();
    cardSectionButtonListButtonOnCLick.add("action", cardSectionButtonListButtonAction);

    JsonObject cardSectionButtonListButton = new JsonObject();
    cardSectionButtonListButton.add("text", new JsonPrimitive("Create"));
    cardSectionButtonListButton.add("onClick", cardSectionButtonListButtonOnCLick);

    JsonArray cardSectionButtonListButtons = new JsonArray();
    cardSectionButtonListButtons.add(cardSectionButtonListButton);

    JsonObject cardSectionButtonList = new JsonObject();
    cardSectionButtonList.add("buttons", cardSectionButtonListButtons);

    JsonObject cardSectionButtonListWidget = new JsonObject();
    cardSectionButtonListWidget.add("buttonList", cardSectionButtonList);

    // Builds the form inputs with error texts for invalid values.
    JsonArray cardSection = new JsonArray();
    if (errors.containsKey("name")) {
      cardSection.add(createErrorTextParagraph(errors.get("name").toString()));
    }
    cardSection.add(cardSectionTextInput1Widget);
    if (errors.containsKey("description")) {
      cardSection.add(createErrorTextParagraph(errors.get("description").toString()));
    }
    cardSection.add(cardSectionTextInput2Widget);
    if (errors.containsKey("priority")) {
      cardSection.add(createErrorTextParagraph(errors.get("priority").toString()));
    }
    cardSection.add(cardSectionSelectionInput1Widget);
    if (errors.containsKey("impact")) {
      cardSection.add(createErrorTextParagraph(errors.get("impact").toString()));
    }

    cardSection.add(cardSectionSelectionInput2Widget);
    cardSection.add(cardSectionButtonListWidget);

    JsonObject cardSectionWidgets = new JsonObject();
    cardSectionWidgets.add("widgets", cardSection);

    JsonArray sections = new JsonArray();
    sections.add(cardSectionWidgets);

    JsonObject card = new JsonObject();
    card.add("header", cardHeader);
    card.add("sections", sections);

    JsonObject navigation = new JsonObject();
    if (isUpdate) {
      navigation.add("updateCard", card);
    } else {
      navigation.add("pushCard", card);
    }

    JsonArray navigations = new JsonArray();
    navigations.add(navigation);

    JsonObject action = new JsonObject();
    action.add("navigations", navigations);

    JsonObject renderActions = new JsonObject();
    renderActions.add("action", action);

    if (!isUpdate) {
      return renderActions;
    }

    JsonObject update = new JsonObject();
    update.add("renderActions", renderActions);

    return update;
  }


  /**
   * Submits the creation form. If valid, returns a render action
   * that inserts a new link into the document. If invalid, returns an
   * update card navigation that re-renders the creation form with error messages.
   * 
   * @param event The event object with form input values.
   * @return The resulting response.
   */
  JsonObject submitCaseCreationForm(JsonObject event) throws Exception {
    JsonObject formInputs = event.getAsJsonObject("commonEventObject").getAsJsonObject("formInputs");
    Map<String, String> caseDetails = new HashMap<String, String>();
    if (formInputs != null) {
      if (formInputs.has("name")) {
        caseDetails.put("name", formInputs.getAsJsonObject("name").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
      }
      if (formInputs.has("description")) {
        caseDetails.put("description", formInputs.getAsJsonObject("description").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
      }
      if (formInputs.has("priority")) {
        caseDetails.put("priority", formInputs.getAsJsonObject("priority").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
      }
      if (formInputs.has("impact")) {
        caseDetails.put("impact", formInputs.getAsJsonObject("impact").getAsJsonObject("stringInputs").getAsJsonArray("value").get(0).getAsString());
      }
    }

    Map<String, String> errors = validateFormInputs(caseDetails);
    if (errors.size() > 0) {
      return createCaseInputCard(event, errors, /* isUpdate= */ true);
    } else {
      String title = String.format("Case %s", caseDetails.get("name"));
      // Adds the case details as parameters to the generated link URL.
      URIBuilder uriBuilder = new URIBuilder("https://example.com/support/cases/");
      for (String caseDetailKey : caseDetails.keySet()) {
        uriBuilder.addParameter(caseDetailKey, caseDetails.get(caseDetailKey));
      }
      return createLinkRenderAction(title, uriBuilder.build().toURL().toString());
    }
  }


  /**
   * Validates case creation form input values.
   * 
   * @param caseDetails The values of each form input submitted by the user.
   * @return A map from field name to error message. An empty object
   *     represents a valid form submission.
   */
  Map<String, String> validateFormInputs(Map<String, String> caseDetails) {
    Map<String, String> errors = new HashMap<String, String>();
    if (!caseDetails.containsKey("name")) {
      errors.put("name", "You must provide a name");
    }
    if (!caseDetails.containsKey("description")) {
      errors.put("description", "You must provide a description");
    }
    if (!caseDetails.containsKey("priority")) {
      errors.put("priority", "You must provide a priority");
    }
    if (caseDetails.containsKey("impact") && !Arrays.asList(new String[]{"P0", "P1"}).contains(caseDetails.get("priority"))) {
      errors.put("impact", "If an issue blocks a critical customer operation, priority must be P0 or P1");
    }

    return errors;
  }

  /**
   * Returns a text paragraph with red text indicating a form field validation error.
   * 
   * @param errorMessage A description of input value error.
   * @return The resulting text paragraph.
   */
  JsonObject createErrorTextParagraph(String errorMessage) {
    JsonObject textParagraph = new JsonObject();
    textParagraph.add("text", new JsonPrimitive("<font color=\"#BA0300\"><b>Error:</b> " + errorMessage + "</font>"));

    JsonObject textParagraphWidget = new JsonObject();
    textParagraphWidget.add("textParagraph", textParagraph);

    return textParagraphWidget;
  }


  /**
   * Returns a submit form response that inserts a link into the document.
   * 
   * @param title The title of the link to insert.
   * @param url The URL of the link to insert.
   * @return The resulting submit form response.
   */
  JsonObject createLinkRenderAction(String title, String url) {
    JsonObject link = new JsonObject();
    link.add("title", new JsonPrimitive(title));
    link.add("url", new JsonPrimitive(url));

    JsonArray links = new JsonArray();
    links.add(link);

    JsonObject action = new JsonObject();
    action.add("links", links);

    JsonObject renderActions = new JsonObject();
    renderActions.add("action", action);

    JsonObject linkRenderAction = new JsonObject();
    linkRenderAction.add("renderActions", renderActions);

    return linkRenderAction;
  }

}

O código a seguir mostra como implementar uma visualização de link para o recurso criado:

java/3p-resources/src/main/java/CreateLinkPreview.java
/**
 * Copyright 2024 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import com.google.cloud.functions.HttpFunction;
import com.google.cloud.functions.HttpRequest;
import com.google.cloud.functions.HttpResponse;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;

import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;
import java.util.HashMap;
import java.util.Map;

public class CreateLinkPreview implements HttpFunction {
  private static final Gson gson = new Gson();

  /**
   * Responds to any HTTP request related to link previews.
   *
   * @param request An HTTP request context.
   * @param response An HTTP response context.
   */
  @Override
  public void service(HttpRequest request, HttpResponse response) throws Exception {
    JsonObject event = gson.fromJson(request.getReader(), JsonObject.class);
    String url = event.getAsJsonObject("docs")
        .getAsJsonObject("matchedUrl")
        .get("url")
        .getAsString();
    URL parsedURL = new URL(url);
    // If the event object URL matches a specified pattern for preview links.
    if ("example.com".equals(parsedURL.getHost())) {
      if (parsedURL.getPath().startsWith("/support/cases/")) {
        response.getWriter().write(gson.toJson(caseLinkPreview(parsedURL)));
        return;
      }
    }

    response.getWriter().write("{}");
  }


  /**
   * A support case link preview.
   *
   * @param url A matching URL.
   * @return The resulting preview link card.
   */
  JsonObject caseLinkPreview(URL url) throws UnsupportedEncodingException {
    // Parses the URL and identify the case details.
    Map<String, String> caseDetails = new HashMap<String, String>();
    for (String pair : url.getQuery().split("&")) {
        caseDetails.put(URLDecoder.decode(pair.split("=")[0], "UTF-8"), URLDecoder.decode(pair.split("=")[1], "UTF-8"));
    }

    // Builds a preview card with the case name, and description
    // Uses the text from the card's header for the title of the smart chip.
    JsonObject cardHeader = new JsonObject();
    String caseName = String.format("Case %s", caseDetails.get("name"));
    cardHeader.add("title", new JsonPrimitive(caseName));

    JsonObject textParagraph = new JsonObject();
    textParagraph.add("text", new JsonPrimitive(caseDetails.get("description")));

    JsonObject widget = new JsonObject();
    widget.add("textParagraph", textParagraph);

    JsonArray widgets = new JsonArray();
    widgets.add(widget);

    JsonObject section = new JsonObject();
    section.add("widgets", widgets);

    JsonArray sections = new JsonArray();
    sections.add(section);

    JsonObject previewCard = new JsonObject();
    previewCard.add("header", cardHeader);
    previewCard.add("sections", sections);

    JsonObject linkPreview = new JsonObject();
    linkPreview.add("title", new JsonPrimitive(caseName));
    linkPreview.add("previewCard", previewCard);

    JsonObject action = new JsonObject();
    action.add("linkPreview", linkPreview);

    JsonObject renderActions = new JsonObject();
    renderActions.add("action", action);

    return renderActions;
  }

}