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    Before Inviting a User to a Group

    마지막 업데이트 시간:2024-02-07 17:30:51
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      Feature Overview

      This callback allows you to view a group member's request to invite another user to join the group on the app backend in real time. You can directly block such request on the app backend.

      Notes

      To enable this callback, you must configure a callback URL and toggle on the corresponding protocol. For more information on the configuration method, see Callback Configuration.
      During this callback, the IM backend initiates an HTTP POST request to the app backend.
      After receiving the callback request, the app backend must check whether the SDKAppID contained in the request URL is the SDKAppID of the app.
      For more security considerations, see the Security Considerations section in Third-Party Callback Overview.

      Callback Triggering Scenarios

      An app user sends a request to invite another user to join the group on the client.
      The app admin adds a user to a group through the RESTful API.

      Callback Triggering Timing

      This callback will be triggered before the IM backend adds the target user to the group (or after the friendship verification is passed, if relationship chain hosting is involved and friendship verification is configured in IM for the app).

      API Calling Description

      Sample request URL

      In the following sample, the callback URL configured in the app is https://www.example.com. Example:
      https://www.example.com?SdkAppid=$SDKAppID&CallbackCommand=$CallbackCommand&contenttype=json&ClientIP=$ClientIP&OptPlatform=$OptPlatform

      Request parameters

      Parameter
      Description
      https
      The request protocol is HTTPS, and the request method is POST.
      www.example.com
      Callback URL
      SdkAppid
      The SDKAppID assigned by the IM console when the app is created
      CallbackCommand
      Fixed value: Group.CallbackBeforeInviteJoinGroup
      contenttype
      Fixed value: JSON.
      ClientIP
      Client IP, such as 127.0.0.1
      OptPlatform
      Client platform. For valid values, see the description of OptPlatform in the Callback Protocols section of Third-Party Callback Overview.

      Sample request

       {
          "CallbackCommand": "Group.CallbackBeforeInviteJoinGroup",
          "GroupId": "@TGS#2J4SZEAEL",
          "Type": "Public",
          "Operator_Account": "leckie",
          "DestinationMembers": [
              {
                  "Member_Account": "jared"
              },
              {
                  "Member_Account": "leckie"
              }
          ],
          "EventTime":"1670574414123"// Event trigger timestamp in milliseconds		
      }

      Request fields

      Field
      Type
      Description
      CallbackCommand
      String
      Callback command
      GroupId
      String
      Group ID
      Type
      String
      Type of the group to be created (for more information, see Group System), such as Public.
      Operator_Account
      String
      UserID of the request sender
      DestinationMembers
      Array
      Set of UserID values of the group
      EventTime
      Integer
      Event trigger timestamp in milliseconds

      Sample response

      Allowing all users to join the group

      The app backend allows all users identified in all requests to join the group.
      {
          "ActionStatus": "OK",
          "ErrorInfo": "",
          "ErrorCode": 0 // It indicates to allow further processing the group join request.
      }

      Blocking certain members from joining the group

      The app backend blocks certain users identified in the requests from being invited to the group. The identifiers of such users are returned in RefusedMembers_Account.
      {
          "ActionStatus": "OK",
          "ErrorInfo": "",
          "ErrorCode": 0,
          "RefusedMembers_Account": [ // List of users who refused to join the group
              "jared"
          ]
      }

      Response fields

      Field
      Type
      Required
      Description
      ActionStatus
      String
      Yes
      Request result. OK: Successful; FAIL: Failed
      ErrorCode
      Integer
      Yes
      Error code. 0 indicates to allow further processing the group join request; 1 indicates to reject the request. If you want to use the specified error code to reject a group join request, you need to pass in ErrorCode and ErrorInfo to the client, with ErrorCode in the range of [10100, 10200].
      ErrorInfo
      String
      Yes
      Error information
      RefusedMembers_Account
      Array
      No
      List of IDs of users who refused to join the group.

      References

      Third-Party Callback Overview
      RESTful API: Adding Group Members
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