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Cloud Moderation Webhooks

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Last updated: 2026-03-13 11:05:41

Overview
Once Content Understanding is enabled, moderation results can be sent to your app backend using webhook configuration.
Notes
To activate webhooks, set the webhook URL and enable the corresponding switch. For configuration steps, refer to Third-Party Callback Introduction.
Webhook requests are sent from the Chat backend to your app backend via HTTP POST.
When your app backend receives a webhook request, it must verify that the SDKAppID parameter in the request URL matches your own SDKAppID.
By default, only moderation results for violations are sent via webhook. If needed, you can configure the webhook to forward all moderation results to your app backend.
API Description
Request URL Example
In this example, the webhook URL configured by the app is https://www.example.com:
https://www.example.com?SdkAppid=$SDKAppID&CallbackCommand=$CallbackCommand&contenttype=json
Request parameters
Field
Description
https
The request protocol is HTTPS, and the request method is POST.
www.example.com
Webhook URL.
SdkAppid
SDKAppID assigned in the Chat console when creating the application.
CallbackCommand
Fixed value: ContentCallback.ResultNotify.
contenttype
Request body type is always json.
Request Example
{
    "Scene":"C2C",
    "SdkAppId":1400187352,
    "From_Account":"jared",
    "ContactItem":{
        "ContactType":1,
        "To_Account":"Jonh"
    },
    "ContentType":"Text",
    "TextContent":[
        "aaabbbccc",
        "1234567"
    ],
    "MsgID":"1434460578_4137340972_1661154487",
    "CtxcbResult":1,
    "CtxcbRequestId":"241ed925-4c56-4357-95dd-1e6e7798f214",
    "CtxcbKeywords":["aaabbbccc","1234567"],
    "CtxcbSuggestion":"Review",
    "CtxcbLabel":"Sexy",
    "CtxcbSubLabel":"InsinuationPorn",
    "CtxcbSubLabelDesc":"XXXX",
    "CtxcbLibName":"test",    
    "CloudCustomData":"aaabbbccc"
}
Request Fields
Field
Type
Description
Scene
String
Moderation scenario:
C2C Chat = C2C
C2C Custom Message = C2CCustom
Group Chat = Group
Group Custom Message = GroupCustom
Group Profile = GroupInfo
Group Member Profile = GroupMemberInfo
Relationship Chain = RelationChain
User Profile = UserInfo
From_Account
String
UserID of the sender of the content submitted for moderation.
ContactItem
Object
Indicates the recipient of the message during moderation.
ContactType
Integer
Distinguishes whether the recipient is a group or C2C Chat:
ContactType = 1 indicates C2C Chat.
ContactType = 2 indicates Group Chat. 
To_Account
String
When ContactType = 1, recipient UserID.
ToGroupId
String
When ContactType = 2, recipient GroupID.
ContentType
String
Type of content submitted for moderation:
Text = Text
Image = Image
Audio = Audio
Video = Video
TextContent
Array
When ContentType is Text, contains the text content submitted for moderation. Custom text messages may return multiple array elements; other message types return only one array element.
FileURL
String
When ContentType is Image/Audio/Video, the file URL submitted for moderation.
MsgID
String
For C2C moderation, MsgID is the C2C message MsgKey.
For Group moderation, MsgID is the group message MsgSeq. If a group message has no MsgID, it indicates the message was blocked due to violation or not delivered for other reasons. 
CtxcbResult
Integer
Chat handling strategy:
1: Blocked.
0: Allowed. 
CtxcbRequestId
String
Identifier for third-party content moderation service.
CtxcbKeywords
Array
Sensitive keywords detected in the text.
CtxcbSuggestion
String
Moderation suggestion from third-party content moderation service: Block/Review/Normal.
CtxcbLabel
String
Primary violation category detected during moderation: Normal/Illegal/Abuse/Polity/Ad/Porn/Sexy/Terror/Composite.
CtxcbSubLabel
String
Secondary violation category detected during moderation. This field is present only when triggered by the model.
CtxcbSubLabelDesc
String
Chinese description corresponding to the secondary violation category detected during moderation.
CtxcbLibName
String
Name of the custom keyword library triggered by keyword detection. This field is present only when keywords are matched.
CloudCustomData
String
For C2C or group message moderation, the CloudCustomData custom field in the message body is returned as-is. For other moderation scenarios, this field is empty.
Response Example
{
    "ActionStatus": "OK",
    "ErrorInfo": "",
    "ErrorCode": 0
}
Response Fields
Field
Type
Description
ActionStatus
String
Processing result:
OK indicates success.
FAIL indicates failure.
ErrorCode
Integer
Error code:
0: App backend processed successfully.
1: App backend processing failed.
ErrorInfo
String
Error message.

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Field	Description
https	The request protocol is HTTPS, and the request method is POST.
www.example.com	Webhook URL.
SdkAppid	SDKAppID assigned in the Chat console when creating the application.
CallbackCommand	Fixed value: ContentCallback.ResultNotify.
contenttype	Request body type is always `json`.

Field	Type	Description
Scene	String	Moderation scenario: C2C Chat = `C2C` C2C Custom Message = `C2CCustom` Group Chat = `Group` Group Custom Message = `GroupCustom` Group Profile = `GroupInfo` Group Member Profile = `GroupMemberInfo` Relationship Chain = `RelationChain` User Profile = `UserInfo`
From_Account	String	UserID of the sender of the content submitted for moderation.
ContactItem	Object	Indicates the recipient of the message during moderation.
ContactType	Integer	Distinguishes whether the recipient is a group or C2C Chat: ContactType = 1 indicates C2C Chat. ContactType = 2 indicates Group Chat.
To_Account	String	When ContactType = 1, recipient UserID.
ToGroupId	String	When ContactType = 2, recipient GroupID.
ContentType	String	Type of content submitted for moderation: Text = Text Image = Image Audio = Audio Video = Video
TextContent	Array	When ContentType is Text, contains the text content submitted for moderation. Custom text messages may return multiple array elements; other message types return only one array element.
FileURL	String	When ContentType is Image/Audio/Video, the file URL submitted for moderation.
MsgID	String	For C2C moderation, MsgID is the C2C message MsgKey. For Group moderation, MsgID is the group message MsgSeq. If a group message has no MsgID, it indicates the message was blocked due to violation or not delivered for other reasons.
CtxcbResult	Integer	Chat handling strategy: 1: Blocked. 0: Allowed.
CtxcbRequestId	String	Identifier for third-party content moderation service.
CtxcbKeywords	Array	Sensitive keywords detected in the text.
CtxcbSuggestion	String	Moderation suggestion from third-party content moderation service: `Block/Review/Normal.`
CtxcbLabel	String	Primary violation category detected during moderation: `Normal/Illegal/Abuse/Polity/Ad/Porn/Sexy/Terror/Composite`.
CtxcbSubLabel	String	Secondary violation category detected during moderation. This field is present only when triggered by the model.
CtxcbSubLabelDesc	String	Chinese description corresponding to the secondary violation category detected during moderation.
CtxcbLibName	String	Name of the custom keyword library triggered by keyword detection. This field is present only when keywords are matched.
CloudCustomData	String	For C2C or group message moderation, the CloudCustomData custom field in the message body is returned as-is. For other moderation scenarios, this field is empty.

tencent cloud

Chat

Cloud Moderation Webhooks

Overview

Notes

API Description

Request URL Example

Request parameters

Request Example

Request Fields

Response Example

Response Fields

Help and Support