Delta query supports for chats

Question

In order to automatically update the chat list when a new message is received, we are considering using delta queries. This method would allow us to only retrieve new or updated chats, rather than manually refreshing the entire list. However, we have not been able to find any documentation on the support of delta queries for chats in the current API.

Answer 1

Hello Rajitha Perera,

Thanks for posting!

As per the Microsoft Graph Documentation, Retrieve the list of messages (without the replies) in a channel of a team. By using delta query, you can get new or updated messages in a channel.

Please refer the below link for same.

ChatMessage: delta

Note: Delta will only return messages within the last eight months. You can use GET /teams/{team-id}/channels/{channel-id}/messages to retrieve older messages.

Hope this helps.

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