取得訊息的詳細資料

本指南說明如何在 Google Chat API 的 Message 資源上使用 get() 方法，傳回文字或卡片訊息的詳細資料。

在 Chat API 中，Chat 訊息會以 Message 資源表示。雖然 Chat 使用者只能傳送含有文字的訊息，但 Chat 應用程式可以使用許多其他訊息功能，包括顯示靜態或互動式使用者介面、向使用者收集資訊，以及私下傳送訊息。如要進一步瞭解 Chat API 提供的訊息功能，請參閱 Google Chat 訊息總覽。

必要條件

Node.js

Python

Java

Apps Script

接收使用者驗證訊息

如要取得含有使用者驗證的郵件詳細資料，請在要求中傳遞以下內容：

  • 指定 chat.messages.readonly 或 chat.messages 授權範圍。
  • 呼叫 GetMessage() 方法。
  • 將 name 設為要取得的訊息資源名稱。

以下範例會透過使用者驗證取得訊息：

Node.js

chat/client-libraries/cloud/get-message-user-cred.js
import {createClientWithUserCredentials} from './authentication-utils.js';

const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.readonly'];

// This sample shows how to get message with user credential
async function main() {
  // Create a client
  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);

  // Initialize request argument(s)
  const request = {
    // Replace SPACE_NAME and MESSAGE_NAME here
    name: 'spaces/SPACE_NAME/messages/MESSAGE_NAME'
  };

  // Make the request
  const response = await chatClient.getMessage(request);

  // Handle the response
  console.log(response);
}

main().catch(console.error);

Python

chat/client-libraries/cloud/get_message_user_cred.py
from authentication_utils import create_client_with_user_credentials
import google.oauth2.credentials

from google.apps import chat_v1 as google_chat

SCOPES = ["https://www.googleapis.com/auth/chat.messages.readonly"]

# This sample shows how to get message with user credential
def get_message_with_user_cred():
    # Create a client
    client = create_client_with_user_credentials(SCOPES)

    # Initialize request argument(s)
    request = google_chat.GetMessageRequest(
        # Replace SPACE_NAME and MESSAGE_NAME here
        name = "spaces/SPACE_NAME/messages/MESSAGE_NAME",
    )

    # Make the request
    response = client.get_message(request)

    # Handle the response
    print(response)

get_message_with_user_cred()

Java

chat/client-libraries/cloud/src/main/java/com/google/workspace/api/chat/samples/GetMessageUserCred.java
import com.google.chat.v1.ChatServiceClient;
import com.google.chat.v1.GetMessageRequest;
import com.google.chat.v1.Message;

// This sample shows how to get message with user credential.
public class GetMessageUserCred {

  private static final String SCOPE =
    "https://www.googleapis.com/auth/chat.messages.readonly";

  public static void main(String[] args) throws Exception {
    try (ChatServiceClient chatServiceClient =
        AuthenticationUtils.createClientWithUserCredentials(
          ImmutableList.of(SCOPE))) {
      GetMessageRequest.Builder request = GetMessageRequest.newBuilder()
        // replace SPACE_NAME and MESSAGE_NAME here
        .setName("spaces/SPACE_NAME/members/MESSAGE_NAME");
      Message response = chatServiceClient.getMessage(request.build());

      System.out.println(JsonFormat.printer().print(response));
    }
  }
}

Apps Script

chat/advanced-service/Main.gs
/**
 * This sample shows how to get message with user credential
 * 
 * It relies on the OAuth2 scope 'https://www.googleapis.com/auth/chat.messages.readonly'
 * referenced in the manifest file (appsscript.json).
 */
function getMessageUserCred() {
  // Initialize request argument(s)
  // TODO(developer): Replace SPACE_NAME and MESSAGE_NAME here
  const name = 'spaces/SPACE_NAME/messages/MESSAGE_NAME';

  // Make the request
  const response = Chat.Spaces.Messages.get(name);

  // Handle the response
  console.log(response);
}

如要執行這個範例，請取代下列項目：

  • SPACE_NAME：聊天室的 name 中的 ID。您可以呼叫 ListSpaces() 方法，或從空間的網址取得 ID。
  • MESSAGE_NAME：訊息 name 中的 ID。您可以使用 Chat API 以非同步方式建立訊息，或在建立訊息時指派自訂名稱，然後從回應主體中取得 ID。

Chat API 會傳回 Message 的例項，其中包含指定訊息的詳細資料。

接收應用程式驗證訊息

如要取得使用應用程式驗證的訊息詳細資料，請在要求中傳遞以下內容：

  • 指定 chat.bot 授權範圍。
  • 呼叫 GetMessage() 方法。
  • 將 name 設為要取得的訊息資源名稱。

以下範例會取得包含應用程式驗證的訊息：

Node.js

chat/client-libraries/cloud/get-message-app-cred.js
import {createClientWithAppCredentials} from './authentication-utils.js';

// This sample shows how to get message with app credential
async function main() {
  // Create a client
  const chatClient = createClientWithAppCredentials();

  // Initialize request argument(s)
  const request = {
    // Replace SPACE_NAME and MESSAGE_NAME here
    name: 'spaces/SPACE_NAME/messages/MESSAGE_NAME'
  };

  // Make the request
  const response = await chatClient.getMessage(request);

  // Handle the response
  console.log(response);
}

main().catch(console.error);

Python

chat/client-libraries/cloud/get_message_app_cred.py
from authentication_utils import create_client_with_app_credentials
from google.apps import chat_v1 as google_chat

# This sample shows how to get message with app credential
def get_message_with_app_cred():
    # Create a client
    client = create_client_with_app_credentials()

    # Initialize request argument(s)
    request = google_chat.GetMessageRequest(
        # Replace SPACE_NAME and MESSAGE_NAME here
        name = 'spaces/SPACE_NAME/messages/MESSAGE_NAME',
    )

    # Make the request
    response = client.get_message(request=request)

    # Handle the response
    print(response)

get_message_with_app_cred()

Java

chat/client-libraries/cloud/src/main/java/com/google/workspace/api/chat/samples/GetMessageAppCred.java
import com.google.chat.v1.ChatServiceClient;
import com.google.chat.v1.GetMessageRequest;
import com.google.chat.v1.Message;

// This sample shows how to get message with app credential.
public class GetMessageAppCred {

  public static void main(String[] args) throws Exception {
    try (ChatServiceClient chatServiceClient =
        AuthenticationUtils.createClientWithAppCredentials()) {
      GetMessageRequest.Builder request = GetMessageRequest.newBuilder()
        // replace SPACE_NAME and MESSAGE_NAME here
        .setName("spaces/SPACE_NAME/members/MESSAGE_NAME");
      Message response = chatServiceClient.getMessage(request.build());

      System.out.println(JsonFormat.printer().print(response));
    }
  }
}

Apps Script

chat/advanced-service/Main.gs
/**
 * This sample shows how to get message with app credential
 * 
 * It relies on the OAuth2 scope 'https://www.googleapis.com/auth/chat.bot'
 * used by service accounts.
 */
function getMessageAppCred() {
  // Initialize request argument(s)
  // TODO(developer): Replace SPACE_NAME and MESSAGE_NAME here
  const name = 'spaces/SPACE_NAME/messages/MESSAGE_NAME';
  const parameters = {};

  // Make the request
  const response = Chat.Spaces.Messages.get(name, parameters, getHeaderWithAppCredentials());

  // Handle the response
  console.log(response);
}

如要執行這個範例，請取代下列項目：

  • SPACE_NAME：聊天室的 name 中的 ID。您可以呼叫 ListSpaces() 方法，或從空間的網址取得 ID。
  • MESSAGE_NAME：訊息中 name 的 ID。您可以使用 Chat API 以非同步方式建立訊息，或在建立訊息時指派自訂名稱，然後從回應主體中取得 ID。

Chat API 會傳回詳述指定訊息的 Message 執行個體。