chat.group_icon_updated - Relay

chat.group_icon_updated fires when a group chat’s icon changes.

Read the payload

The data object is the ChatGroupIconUpdatedEvent schema from the API contract. The envelope around it is the same on every event and is described in the event catalog.

Field	Meaning
`chat_id`	Group chat ID
`old_value`	Previous icon URL, or `null`
`new_value`	New icon URL, or `null` when removed
`changed_by_handle`	The handle that made the change, or `null`
`updated_at`	When the icon URL changed

Handle the event

Replace the stored icon for chat_id with new_value, and treat null as no icon. Fetch the image when you need it rather than assuming the URL stays valid for long.

Next steps