发送和接收消息回执

消息回执可通知发件人其消息已送达或已读。借助回执，用户可以查看智能体何时已读其消息，以便了解何时会收到回复。智能体还可以确定用户何时收到和阅读消息，因此您可以跟踪回执指标，以便更好地设计互动。

智能体会在其 webhook 中收到回执。接收和处理回执的方式与接收消息的方式相同 。

如果用户同时收到或阅读多条消息，则会一次发送多个回执，并且单个载荷包含所有消息回执。 请检查每个回执，以了解其关联的消息。

回执类型

Business Messages 支持送达回执和已读回执。

用户发送的回执

智能体可以收到用户发送的以下回执：

• 送达回执 (DELIVERED) 表示用户已收到智能体发送的消息。
• 已读回执 (READ) 表示用户已阅读智能体发送的消息。

用户可以选择不发送已读回执。如果用户选择不发送已读回执，仍会收到智能体发送的已读回执。

智能体发送的回执

用户可以收到智能体发送的已读回执。

已读回执 (READ) 表示智能体已阅读用户发送的消息。 如果多个人工客服同时管理对话，则收到已读回执表示至少有一位客服已阅读用户的消息。

格式

用户发送的回执

用户发送的送达回执的格式如下：

{
  "agent": "brands/BRAND_ID/agents/AGENT_ID",
  "conversationId": "CONVERSATION_ID",
  "customAgentId": "CUSTOM_AGENT_ID",
  "sendTime": "SEND_TIME",
  "receipts" : {
    "receipts": [
      {
        "message": "conversations/CONVERSATION_ID/messages/MESSAGE_ID",
        "receiptType": "DELIVERED",
      }
    ],
    "createTime": "RECEIPTS_CREATION_TIME",
  },
}

用户发送的已读回执的格式如下：

{
  "agent": "brands/BRAND_ID/agents/AGENT_ID",
  "conversationId": "CONVERSATION_ID",
  "customAgentId": "CUSTOM_AGENT_ID",
  "sendTime": "SEND_TIME",
  "receipts" : {
    "receipts": [
      {
        "message": "conversations/CONVERSATION_ID/messages/MESSAGE_ID",
        "receiptType": "READ",
      }
    ],
    "createTime": "RECEIPTS_CREATION_TIME",
  },
}

如需了解格式设置和值选项，请参阅 UserMessage 和 Receipts。

智能体发送的回执

以下代码会发送智能体发送的已读回执：

cURL

curl -X PATCH \
-H "`./oauth2l header --json 'PATH_TO_SERVICE_ACCOUNT_KEY' businessmessages`" \
-H "Content-Type: application/json" \
-d '{
  "receiptType": "READ"
}' \
"https://businessmessages.googleapis.com/v1/conversations/CONVERSATION_ID/messages/MESSAGE_ID/receipt"

Node.js

const businessmessages = require('businessmessages');
const uuidv4 = require('uuid/v4');
const {google} = require('googleapis');

// Initialize the Business Messages API
let bmApi = new businessmessages.businessmessages_v1.Businessmessages({});

// Set the scope that we need for the Business Messages API
const scopes = [
  'https://www.googleapis.com/auth/businessmessages',
];

// Set the private key to the service account file
const privatekey = require('PATH_TO_SERVICE_ACCOUNT_KEY');

/**
 * Initializes the Google credentials for calling the
 * Business Messages API.
 */
async function initCredentials() {
  // Configure a JWT auth client
  let authClient = new google.auth.JWT(
      privatekey.client_email,
      null,
      privatekey.private_key,
      scopes,
  );

  return new Promise(function(resolve, reject) {
    // Authenticate request
    authClient.authorize(function(err, tokens) {
      if (err) {
        reject(false);
      } else {
        resolve(authClient);
      }
    });
  });
}

/**
 * Sends a read receipt to a specific messageId.
 *
 * @param {string} conversationId The unique id for this user and agent.
 * @param {string} messageId The unique id for this message.
 */
async function sendReadReceipt(conversationId, messageId) {
  let authClient = await initCredentials();

  // Create the payload for sending a read receipt
  let apiParams = {
    auth: authClient,
    name: 'conversations/' + conversationId + '/messages/' + messageId + '/receipt',
    resource: {
      receiptType:'READ'
    }
  };

  // Call the updateReceipt create function using the
  // Business Messages client library
  bmApi.conversations.messages.updateReceipt(apiParams,
    {auth: authClient}, (err, response) => {
    console.log(err);
    console.log(response);
  });
}

sendReadReceipt('CONVERSATION_ID', 'MESSAGE_ID');

此代码基于 Node.js Business Messages 客户端库。

Java

import com.google.api.client.googleapis.services.AbstractGoogleClientRequest;
import com.google.api.client.http.HttpBackOffUnsuccessfulResponseHandler;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.ExponentialBackOff;
import com.google.api.services.businessmessages.v1.Businessmessages;
import com.google.api.services.businessmessages.v1.model.BusinessMessagesReceipt;

import com.google.api.services.businessmessages.v1.model.*;
import java.io.FileInputStream;
import java.util.Arrays;
import java.util.UUID;

public class ReadReceiptSample {
  /**
   * Initializes credentials used by the Business Messages API.
   */
  private static Businessmessages.Builder getBusinessMessagesBuilder() {
    Businessmessages.Builder builder = null;
    try {
      GoogleCredential credential = GoogleCredential
            .fromStream(new FileInputStream("PATH_TO_SERVICE_ACCOUNT_KEY"));

      credential = credential.createScoped(Arrays.asList(
            "https://www.googleapis.com/auth/businessmessages"));

      credential.refreshToken();

      HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();
      JacksonFactory jsonFactory = JacksonFactory.getDefaultInstance();

      // Create instance of the Business Messages API
      builder = new Businessmessages
        .Builder(httpTransport, jsonFactory, null)
        .setApplicationName("Sample Application");

      // Set the API credentials and endpoint
      builder.setHttpRequestInitializer(credential);
    } catch (Exception e) {
      e.printStackTrace();
    }

    return builder;
  }

  public static void main(String args[]) {
    try{
      String conversationId = "CONVERSATION_ID";
      String messageId = "MESSAGE_ID";

      // Create client library reference
      Businessmessages.Builder builder = getBusinessMessagesBuilder();

     // Create a new read receipt
     Businessmessages.Conversations.Messages.UpdateReceipt request
       = builder.build().conversations().messages()
         .updateReceipt("conversations/" + conversationId + "/messages/" + messageId + "/receipt",
           new BusinessMessagesReceipt().setReceiptType("READ"));

      // Set up retries with exponential backoff
      HttpRequest httpRequest =
          ((AbstractGoogleClientRequest) request).buildHttpRequest();

      httpRequest.setUnsuccessfulResponseHandler(new
          HttpBackOffUnsuccessfulResponseHandler(
          new ExponentialBackOff()));

      // Execute request
      httpRequest.execute();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

此代码基于 Java Business Messages 客户端库。

Python

from oauth2client.service_account import ServiceAccountCredentials
from businessmessages import businessmessages_v1_client as bm_client
from businessmessages.businessmessages_v1_messages import (
    BusinessMessagesReceipt)

credentials = ServiceAccountCredentials.from_json_keyfile_name(
    'PATH_TO_SERVICE_ACCOUNT_KEY',
    scopes=['https://www.googleapis.com/auth/businessmessages'])

client = bm_client.BusinessmessagesV1(credentials=credentials)

conversation_id = 'CONVERSATION_ID'
message_id = 'MESSAGE_ID'

read_receipt = BusinessMessagesReceipt(
    name=f"conversations/{conversation_id}/messages/{message_id}/receipt",
    receiptType=BusinessMessagesReceipt.ReceiptTypeValueValuesEnum.READ
)

# Send the message
bm_client.BusinessmessagesV1.ConversationsMessagesService(
    client=client).UpdateReceipt(request=read_receipt)

此代码基于 Python Business Messages 客户端库。

如需了解格式设置和值选项，请参阅 ReceiptType。