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After A One-to-One Message Is Recalled/

After A One-to-One Message Is Recalled

Feature Description

This API is used by the app backend to view the recalls of one-to-one messages in real time.

Notes

To enable this callback, you must configure the callback URL and enable the corresponding switch for this callback. For more information on the configuration method, see Callback Configuration.
During this callback, the IM backend initiates an HTTPS 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 Trigger Scenarios

An app user recalls a one-to-one message on the client.
An app admin recalls a one-to-one message by calling the admin_msgwithdraw API.

Callback Trigger Timing

After a one-to-one message is recalled successfully

API Calling Description

Sample request URL

In the following sample, the callback URL configured in the app is https://www.example.com. Sample:
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
SDKAppID assigned by the IM console when the app is created
CallbackCommand
Always C2C.CallbackAfterMsgWithDraw
contenttype
Always 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": "C2C.CallbackAfterMsgWithDraw", // Callback command
  "From_Account": "jared", // Sender
  "To_Account": "Jonh", // Recipient
  "MsgKey": "48374_2837546_1557481126", // Unique identifier of the message
  "UnreadMsgNum": 7 // Total number of unread one-to-one messages of `To_Account`
}

Request fields

Field
Type
Description
CallbackCommand
String
Callback command
From_Account
String
UserID of the message sender
To_Account
String
UserID of the message recipient
MsgKey
String
Unique identifier of the message
UnreadMsgNum
Integer
Total number of unread one-to-one messages of To_Account (including all one-to-one conversations)

Sample response

{
  "ActionStatus": "OK",
  "ErrorInfo": "",
  "ErrorCode": 0 // `0`: callback succeeds; `1`: an error occurs during callback.
}

Response fields

Field
Type
Required
Description
ActionStatus
String
Yes
Request result. OK: successful; FAIL: failed
ErrorCode
Integer
Yes
Error code. 0: callback succeeds; 1: an error occurs during callback.
ErrorInfo
String
Yes
Error information

References

Third-Party Callback Overview
Recalling One-to-One Messages