please select
  • UIKit
  • SDK
  • Server APIs
Chat/
Server APIs/
Webhooks/
Group Webhooks/
Server APIs
  • Generating UserSig
  • RESTful APIs
    • RESTful API Overview
    • RESTful API List
    • Message Related
      • Send Message
        • Sending One-to-One Messages to One User
        • Sending One-to-One Messages to Multiple Users
        • Sending Ordinary Messages in a Group
        • Sending System Messages in a Group
        • Broadcast Message of Audio-Video Group
        • Importing One-to-One Messages
        • Importing Group Messages
      • Historical Message
        • Modifying Historical One-to-one Messages
        • Modifying Historical Group Messages
        • Pulling Historical One-to-one Messages
        • Pulling Historical Group Messages
      • Delete Message
        • Deleting Messages Sent by a Specified User
      • Withdraw Message
        • Recalling One-to-One Messages
        • Recalling Group Messages
      • Read Receipt
        • Marking One-to-One Messages as Read
        • Pulling Group Message Read Receipt Details
        • Pulling Read Receipts for Group Messages
      • Message Extension
        • Pulling the Message Extension of a One-to-One Message
        • Configuring Message Extension for a One-to-One Message
        • Pulling Message Extension of a Group Message
        • Configuring Message Extension for a Group Message
      • Pushing to All Users
        • API for Pushing to All Users
        • Pushing to All Users
        • Setting Application Attribute Names
        • Getting Application Attribute Names
        • Getting User Attributes
        • Setting User Attributes
        • Deleting User Attributes
        • Getting User Tags
        • Adding User Tags
        • Deleting User Tags
        • Deleting All Tags of a User
    • Session Related
      • Conversation List
        • Pulling a conversation list
      • Session Unread Count
        • Setting the Unread Message Count of a Member
        • Querying Unread One-to-One Message Count
      • Delete Session
        • Deleting a conversation
      • Session Grouping Tag
        • Creating Conversation Group Data
        • Updating Conversation Group Data
        • Deleting Conversation Group Data
        • Creating or Updating Conversation Mark Data
        • Searching for Conversation Group Marks
        • Pulling Conversation Group Mark Data
    • Group Related
      • Group Management
        • Getting All Groups in an App
        • Creating a Group
        • Disbanding a Group
        • Getting the Groups a User Has Joined
      • Group Information
        • Getting Group Profiles
        • Modifying the Profile of a Group
        • Importing a Group Profile
      • Group Member Management
        • Adding Group Members
        • Deleting Group Members
        • Banning Group Members
        • Unbanning Group Members
        • Bulk Muting and Unmuting
        • Getting the List of Muted Group Members
        • Changing Group Owner
        • Querying the Roles of Users in a Group
        • Importing Group Members
      • Group Member Information
        • Getting Group Member Profiles
        • Modifying the Profile of a Group Member
      • Group Custom Attributes
        • Getting Group Custom Attributes
        • Modifying Group Custom Attributes
        • Clearing Group Custom Attributes
        • Resetting Group Custom Attributes
        • Deleting Group Custom Attributes
      • Live Group Management
        • Getting the Number of Online Users in an Audio-Video Group
        • Getting the List of Online Members in Audio-Video Group
        • Setting Audio-Video Group Member Marks
        • Getting the List of Banned Group Members.
      • Community Management
        • Creating Topic
        • Deleting Topic
        • Getting Topic Profile
        • Modifying Topic Profile
        • Importing Topic Profiles
      • Group Counter
        • Getting Group Counters
        • Updating Group Counters
        • Deleting Group Counters
    • User Management
      • Account Management
        • Importing a Single Account
        • Importing Multiple Accounts
        • Deleting Accounts
        • Querying Accounts
      • User Information
        • Setting Profiles
        • Pulling Profiles
      • User Status
        • Invalidating Account Login States
        • Querying Account Online Status
      • Friend Management
        • Adding Friends
        • Importing Friends
        • Updating Friends
        • Deleting Friends
        • Deleting All Friends
        • Verifying Friends
        • Pulling Friends
        • Pulling Specified Friends
      • Friend Lists
        • Adding Lists
        • Deleting Lists
        • Pulling Lists
      • Blocklist
        • Blocklisting Users
        • Unblocklisting Users
        • Pulling a Blacklist
        • Verifying Users on a Blocklist
    • Global Mute Management
      • Setting Global Mute
      • Querying Global Mute
    • Operations Management
      • Pulling Operations Data
      • Downloading Recent Messages
      • Getting Server IP Addresses
    • Chatbots
      • Pulling Chatbot Accounts
      • Creating Chatbot Accounts
      • Deleting Chatbot Accounts
  • Webhooks
    • Webhook Overview
    • Webhook Command List
    • Operations Management Callbacks
      • API Overclocking Alarm Callbacks
    • Online Status Webhooks
      • Status Change Webhooks
    • Relationship Chain Webhooks
      • After a Profile Is Updated
      • Before a Friend Is Added
      • Before a Friend Request Is Responded
      • After a Friend Is Added
      • After a Friend Is Deleted
      • After a User Is Added to Blocklist
      • After a User Is Removed from Blocklist
    • One-to-One Message Webhooks
      • Before a One-to-One Message Is Sent
      • After a One-to-One Message Is Sent
      • After a One-to-One message Is Marked as Read
      • After A One-to-One Message Is Recalled
    • Group Webhooks
      • Before a Group Is Created
      • After a Group Is Created
      • Before Applying to Join a Group
      • Before Inviting a User to a Group
      • After a User Joins a Group
      • After a User Leaves a Group
      • Before Group Message Is Sent
      • After a Group Message Is Sent
      • After a Group Is Full
      • After a Group Is Disbanded
      • After Group Profile Is Modified
      • Callback After Recalling Group Messages
      • Webhook for Online and Offline Status of Audio-Video Group Members
      • Webhook for Exceptions When Group Messages Are Sent
      • Before a Topic Is Created
      • After a Topic Is Created
      • After a Topic Is Deleted
      • Topic Profile Change Webhook
      • Callback After Group Member Profile Changed
      • Callback After Group Attribute Changed
      • Callback After Read Receipt
      • Callback After the Group Owner Changed
    • Webhook Mutual Authentication Configuration Guide
      • Apache Mutual Authentication Configuration
      • Nginx Mutual Authentication Configuration
    • Chatbot webhooks
      • Chatbot Passthrough Message Callback

Before a Group Is Created

Overview

This webhook event is used by the app backend to check users' group creation requests in real time. The app backend can also reject the requests.

Notes

To enable this webhook, you must configure a webhook URL and toggle on the corresponding protocol. 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

The app user creates a group on the client.
The app admin creates a group through the RESTful API.

Webhook Triggering Timing

It will be triggered before the Chat backend creates a group.

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.CallbackBeforeCreateGroup.
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 Webhook Protocols section of Webhook Overview.

Sample request

{
"CallbackCommand": "Group.CallbackBeforeCreateGroup", // Webhook command
"Operator_Account": "leckie", // Operator
"Owner_Account": "leckie", // Group owner
"Type": "Public", // Group type
"Name": "MyFirstGroup", // Group name
"CreateGroupNum": 123, // Number of groups of the same type that the user has created
"MemberList": [ // List of initial members
{
"Member_Account": "bob"
},
{
"Member_Account": "peter"
}
],
"EventTime":"1670574414123"// Event trigger timestamp in milliseconds
}

Request fields

Object
Type
Description
CallbackCommand
String
Webhook command
Operator_Account
String
UserID of the operator who initiates the group creation request
Owner_Account
String
UserID of the owner of the group requested to be created
Type
String
Type of the group that generates group messages, such as Public. For details, see Group Types section in Group System.
Name
String
Name of the group requested to be created
CreateGroupNum
Integer
Number of groups of the same type that the user has created
MemberList
Array
List of initial members of the group requested to be created
EventTime
Integer
Event trigger timestamp in milliseconds

Sample response

Creation allowed

The user is allowed to create a group.
{
"ActionStatus": "OK",
"ErrorInfo": "",
"ErrorCode": 0 // Creation allowed
}

Creation disallowed

The user is not allowed to create a group. No group will be created, and the error code 10016 will be returned to the caller.
{
"ActionStatus": "OK",
"ErrorInfo": "",
"ErrorCode": 1 // Creation refused
}

Response fields

Field
Type
Required
Description
ActionStatus
String
Yes
Request result. OK: Successful; FAIL: Failed
ErrorCode
Integer
Yes
Error code returned. 0: Allows group creation; 1: Forbids group creation. If the business side wants to use a custom error code to forbid a user to create a group and send ErrorCode and ErrorInfo to the client, ensure that the value of ErrorCode is set within the range of [10100, 10200].
ErrorInfo
String
Yes
Error information

References

RESTful API: Creating a Group