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RESTModeration
Stream Chat supports moderation actions like flagging, muting, banning, and shadow banning. Low-level client tools are documented here.
You can also moderate flagged messages and users in the moderation dashboard.
Best Practices
- Align dashboard moderation actions with your in-app UX expectations.
- Surface clear feedback when a message is bounced or blocked.
- Treat
message.moderation_detailsas the source of truth for moderation state. - Keep resend actions gated to prevent repeated policy violations.
- Customize
MessageBounceonly if you keep the same moderation semantics.
Moderation Categories
For each channel type, you can enable AI moderation, consisting of 4 moderation categories:
- Semantic Filters
- Commercial Spam
- Platform Circumvention
- Blocklists
For each category, configure the action applied when a message matches:
The available actions are:
- Flag
- Block
- Bounce
- Bounce then flag
- Bounce then block
React Native SDK Handling
In the React Native SDK, check message.moderation_details. It’s undefined for regular messages.
If moderation blocks a message, message.type is error and the text contains Message was blocked by moderation policies.
If moderation bounces a message, message.type is error and moderation_details is defined.
UI Components handling
The SDK handles bounced messages by default and shows a visual indicator.
Press/long-press a message to access default actions like edit, delete, and resend.
If you resend a bounced message:
- With “bounce then flag”, it’s flagged after the second send.
- With “bounce then block”, it’s blocked after the second send.
You can customize bounced message actions by passing a custom MessageBounce to Channel.