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Callback for User Exiting a Group

Function Description​

The App business server can use this callback to view requests of users exiting a group. The App backend can then perform operations like data synchronization based on this information.

Precautions​

  • To enable the callback, you must configure the callback URL and activate the switch corresponding to this callback protocol. See the Callback Description document for configuration methods.
  • The direction of the callback is an HTTP/HTTPS POST request initiated by OpenIM Server to the App backend.
  • The App business server needs to verify whether the command parameter in the request URL is its own SDKNAME parameter after receiving the callback request.
  • The APP business server is required to respond to this request within the timeout period.

Scenarios That May Trigger This Callback​

  • App users exit a group through the client.

Timing of the Callback​

  • After a user exits a group in OpenIM Server.

Interface Description​

Request URL Example​

In the following example, the configured callback URL of the App is https://callbackurl.

https://callbackurl?command=$CallbackCommand&contenttype=json

Request Parameter Description​

ParameterDescription
httpsRequest protocol is HTTPS, request method is POST.
https://callbackurlCallback URL
CallbackCommandFixed value: quitGroupCommand
contenttypeFixed value: JSON
Header NameExample ValueOptionalTypeDescription
operationID1646445464564RequiredstringoperationID used for global tracing

Request Packet Example​

{
  "callbackCommand": "quitGroupCommand",
  "groupID": "G001",
  "userID": "user123"
}

Request Packet Field Description​

FieldTypeDescription
callbackCommandstringCallback command, here for user exiting the group.
groupIDstringUnique identifier of the group being exited.
userIDstringUser ID of the member attempting to exit the group.

Response Packet Example​

{
  "actionCode": 0,
  "errCode": 0,
  "errMsg": "Success",
  "errDlt": "",
  "nextCode": "nextCodeValue"
}

Response Packet Field Description​

FieldValueDescription
actionCode0Indicates whether the business system's callback was executed correctly. 0 means the operation was successful.
errCode0Represents a custom error code, here 0 indicates ignoring the callback result.
errMsg"An error message"Simple error message corresponding to the custom error code.
errDlt"Detailed error information"Detailed error information corresponding to the custom error code.
nextCode1Next execution instruction, 1 means refuse to continue execution, set when actionCode is 0.