Docs Overview/
Chat/
Server APIs/
Webhooks/
Group Webhooks/
After a Group Message Is Sent/

After a Group Message Is Sent

Feature Overview

This webhook event is used by the app backend to check users' group messages in real time. The app backend can be notified when a group message is sent successfully and can synchronize the data as required.

Limits

To enable this webhook, you must configure a callback URL and enable the corresponding switch for this webhook. For more information on the configuration method, see Webhook Configuration.
During this webhook event, the Chat backend initiates an HTTP POST request to the app backend.
After receiving the webhook 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 Webhook Overview.

Webhook Triggering Scenarios

An app user sends a group message on the client.
The app admin sends a group message via RESTful APIs.

Webhook Triggering Timing

The webhook is triggered after a group message is sent successfully.

API Calling Description

Sample request URL

In the following sample, the webhook 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
Webhook URL
SdkAppid
The SDKAppID assigned by the Chat console when the app is created
CallbackCommand
Fixed value: Group.CallbackAfterSendMsg.
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 Webhook Overview.

Sample requests

{
    "CallbackCommand": "Group.CallbackAfterSendMsg", // Webhook command
    "GroupId": "@TGS#2J4SZEAEL", // Group ID
    "Type": "Public", // Group type
    "From_Account": "jared", // Sender
    "Operator_Account":"admin", // Request initiator
    "Random": 123456, // Random number
    "MsgSeq": 123, // Sequence number of the message
    "MsgTime": 1490686222, // Time of the message
    "OnlineOnlyFlag": 1, // The value is `1` if it is an online message and `0` (default) if it’s not. For audio-video groups, the value is `0`.
    "MsgBody": [ // Message body. For more information, see the `TIMMessage` message object.
        {
            "MsgType": "TIMTextElem", // Text
            "MsgContent":{
                "Text": "red packet"
            }
        }
    ],
    "CloudCustomData": "your cloud custom data",
    "EventTime":"1670574414123"// Event trigger timestamp in milliseconds		
}

Request fields

Field
Type
Description
CallbackCommand
String
Webhook command
GroupId
String
ID of the group that generates group messages
Type
String
Type of the group that generates group messages, such as Public. For details, see Group Types section in Group System.
From_Account
String
UserID of the message sender
Operator_Account
String
UserID of the request initiator, based on which the system can identify whether the request is initiated by the admin.
Random
Integer
A 32-bit random number in the request
MsgSeq
Integer
Message sequence number, which uniquely identifies a message<br>Group messages are sorted by MsgSeq. The larger the MsgSeq value, the lower a message ranks.
MsgTime
Integer
Message sending timestamp, corresponding to the backend server time
OnlineOnlyFlag
Integer
The value is 1 if it is an online message and 0 (default) if it’s not. For audio-video groups, the value is 0.
MsgBody
Array
Message body. For more information, see Message Formats.
CloudCustomData
String
Custom message data. It is saved in the cloud and will be sent to the receiver. Such data can be pulled after the app is uninstalled and reinstalled.
TopicId
String
Topic ID, which indicates message sending in the topic and applies only to topic-enabled communities.
EventTime
Integer
Event trigger timestamp in milliseconds

Sample response

A response is sent after the app backend synchronizes the data.
{
    "ActionStatus": "OK",
    "ErrorInfo": "",
    "ErrorCode": 0 //The value `0` indicates that the webhook result is ignored.
}

Response fields

Field
Type
Required
Description
ActionStatus
String
Yes
Request result. OK: Successful; FAIL: Failed
ErrorCode
Integer
Yes
Error code. The value 0 indicates that the webhook result is ignored.
ErrorInfo
String
Yes
Error information

References

Webhook Overview
RESTful APIs: Sending Ordinary Messages in a Group