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    Pulling Historical Group Messages

    最終更新日:2024-07-16 10:41:26
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      Background

      Tencent Chat group messages are sorted by seq, and seq is allocated according to the order in which group messages are received by the server. The seq is greater for group messages sent earlier and smaller for group messages sent later.
      To pull all the messages of a group, you do not need to enter the seq for the initial pull. Instead, the server automatically returns the latest messages. For subsequent pulls, enter the previously returned smallest seq minus 1.
      If the value of IsPlaceMsg in the returned message is 1, it indicates that the message with this seq has expired, failed to be stored, or been deleted.

      Feature Overview

      This API allows the app administrator to pull the historical messages of a group.

      API Calling Description

      Applicable group types

      Group Type ID
      Support for This RESTful API
      Private
      Yes. Same as work groups (Work) in the new version.
      Public
      Yes
      ChatRoom
      Yes. Same as meeting groups (Meeting) in the new version.
      AVChatRoom
      No
      Community
      Yes
      Above are the Chat built-in groups. For more information, please see Group System.
      Note
      Audio-video groups (AVChatRoom) do not support this API because the historical messages of this type of group cannot be stored.

      Sample request URL

      https://xxxxxx/v4/group_open_http_svc/group_msg_get_simple?sdkappid=88888888&identifier=admin&usersig=xxx&random=99999999&contenttype=json

      Request parameters

      The following table describes the modified parameters when this API is called. For other parameters, see RESTful API Overview.
      Parameter
      Description
      xxxxxx
      Domain name corresponding to the country/region where your SDKAppID is located.
      China: console.tim.qq.com
      Singapore: adminapisgp.im.qcloud.com
      Seoul: adminapikr.im.qcloud.com
      Frankfurt: adminapiger.im.qcloud.com
      Silicon Valley: adminapiusa.im.qcloud.com
      Jakarta: adminapiidn.im.qcloud.com
      v4/group_open_http_svc/group_msg_get_simple
      The request API
      sdkappid
      SDKAppID assigned by the Chat console when an app is created
      identifier
      App admin account. For more information, see the App Admin section in Login Authentication.
      usersig
      Signature generated by the app admin account. For details, see Generating UserSig.
      random
      A random 32-bit unsigned integer ranging from 0 to 4294967295.
      contenttype
      Request format. The value is fixed to json.

      Maximum call frequency

      200 calls per second

      Sample request

      Basic format Pulls the historical messages of a group. The most recent ReqMsgNumber group messages will be returned.
      {
        "GroupId": "@TGS#15ERQPAER",    // The ID of the group of which messages are to be pulled
        "ReqMsgNumber": 2      // The number of messages to be pulled
      }
      Pulling by seq Pulls the historical messages of a group based on the specified seq. The seq of the returned messages is less than or equal to the ReqMsgNumber of ReqMsgSeq.
      {
        "GroupId": "@TGS#15ERQPAER",
        "ReqMsgSeq": 7803321,       // The maximum seq of the requested messages. The messages with a seq less than or equal to `ReqMsgSeq` will be returned.
        "ReqMsgNumber": 2
      }

      Request fields

      Field
      Type
      Required
      Description
      GroupId
      String
      Yes
      The ID of the group of which messages are to be pulled
      ReqMsgNumber
      Integer
      Yes
      The number of historical messages to be pulled. At present, a maximum of 20 historical messages can be returned per request. Therefore, please set the value of this field to 20 or less.
      ReqMsgSeq
      Integer
      No
      The maximum seq of the messages to be pulled
      WithRecalledMsg
      Integer
      Optional
      Whether to pull recalled messages. 1: pull recalled messages. Recalled messages are not pulled by default.
      TopicId
      String
      No
      ID of the topic for which messages are pulled. This field applies only to topic-enabled communities.

      Sample response

      {
          "ActionStatus": "OK",
          "ErrorInfo": "",
          "ErrorCode": 0,
          "GroupId": "@TGS#15ERQPAER",
          "IsFinished": 1,
          "RspMsgList": [
              {
                  "From_Account": "144115197276518801",
                  "IsPlaceMsg": 0,
                  "MsgBody": [
                      {
                          "MsgContent": {
                              "Data": "\\b\\u0001\\u0010\\u0006\\u001A\\u0006 MaoTong",
                              "Desc": "MIF",
                              "Ext": ""
                          },
                          "MsgType": "TIMCustomElem"
                      },
                      {
                          "MsgContent": {
                              "Data": "",
                              "Index": 15
                          },
                          "MsgType": "TIMFaceElem"
                      }
                  ],
                  "MsgPriority": 1,
                  "MsgRandom": 51083293,
                  "MsgSeq": 7803321,
                  "MsgTimeStamp": 1458721802
              },
              {
                  "From_Account": "144115198339527735",
                  "IsPlaceMsg": 0,
                  "MsgBody": [
                      {
                          "MsgContent": {
                              "Data": "\\b\\u0001\\u0010\\u0006\\u001A\\u000F Watermelon Girl",
                              "Desc": "MIF",
                              "Ext": ""
                          },
                          "MsgType": "TIMCustomElem"
                      },
                      {
                          "MsgContent": {
                              "Text": "Report"
                          },
                          "MsgType": "TIMTextElem"
                      }
                  ],
                  "MsgPriority": 1,
                  "MsgRandom": 235168582,
                  "MsgSeq": 7803320,
                  "MsgTimeStamp": 1458721797
              }
          ]
      }

      Response fields

      Field
      Type
      Description
      ActionStatus
      String
      Request result. OK: successful; FAIL: failed
      ErrorInfo
      String
      Error information
      ErrorCode
      Integer
      Error code. 0: Successful; other values: Failed
      groupID
      String
      The group ID in the request
      IsFinished
      Integer
      Whether all the requested messages are returned.
      1: All the requested messages are returned.
      0: Not all requested messages are returned because the messages are too long or the number of messages is greater than 20.
      2: The requested messages are too long or the number of messages is greater than 20 and all the messages have expired.
      MsgList
      Array
      A list of returned messages
      From_Account
      String
      The UserID of the message sender
      IsPlaceMsg
      Integer
      Whether a message is empty. If the message has been deleted or expired, MsgBody is empty and the value of this field is 1. If the message has been recalled, the value of this field is 2.
      MsgPriority
      Integer
      Message priority, which is used for message deduplication. A value is entered when the client sends a message. If no value is entered, the server automatically generates one. 1: high priority; 2: normal priority, 3: low priority; 4: lowest priority
      MsgRandom
      Integer
      Message random value, which is used for message deduplication. A value is entered when the client sends a message. If no value is entered, the server automatically generates one.
      MsgSeq
      Integer
      The unique seq of the message. The smaller the value, the earlier the message was sent.
      MsgTimeStamp
      Integer
      The timestamp when the message was sent, which follows the server time system
      MsgBody
      Array
      Message body. For more information, see Message Formats.
      IsSystemMsg
      Integer
      Whether the message is a system message. 1: Yes

      Error Codes

      The returned HTTP status code for this API is always 200 unless a network error (such as error 502) occurs. The specific error code and details can be found in the response fields ErrorCode and ErrorInfo respectively. For public error codes (60000 to 79999), see Error Codes. The following table describes the error codes specific to this API:
      Error Code
      Description
      10002
      Internal server error. Try again.
      10003
      Invalid command word.
      10004
      Invalid parameter. Check the error description and troubleshoot the issue.
      10007
      No operation permissions. The operator must have permissions to perform corresponding operations.
      10010
      The group does not exist or has been deleted.
      10015
      Invalid group ID. Use the correct group ID.

      API Debugging Tool

      Use the RESTful API online debugging tool to debug this API.

      References

      Setting the Unread Message Count of a Member (v4/group_open_http_svc/set_unread_msg_num)
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