API to fetch all users chat messages in msteam

Question

Hello,

I am trying to fetch all user's chats (Channel, Group, and one-to-one) messages. I am able to fetch all user's channels message with the Application scope, but not able to get all user's groups and one-to-one messages. I have tried this API https://graph.microsoft.com/v1.0/users/{user-id}/chats but it is giving the following response

{
"error": {
"code": "BadRequest",
"message": "List chats is only supported in delegated (on-behalf-of user) context.",
"innerError": {
"date": "2022-01-20T10:46:54",
"request-id": "d52403a5-e963-442c-af90-47d713b0f4da",
"client-request-id": "d52403a5-e963-442c-af90-47d713b0f4da"
}
}
}

How can I fetch all users chat with an Admin account?

Answer 1

As the documentation explains, in order to use this endpoint via application permissions, you need to request Microsoft to whitelist you app first: https://learn.microsoft.com/en-us/graph/teams-protected-apis

Answer 2

Hi @Casepoint Developer ,

Below Microsoft Graph teamwork APIs are available to get chat messages that a user is a participant in. Based on your requirement, you can consider using chats: getAllMessages Graph Teamwork API.

1. chats: getAllMessages API : Get all messages from all chats that a user is a participant in, including one-on-one chats, group chats, and meeting chats. Currently this API is only supported with application permissions scope. GET https://graph.microsoft.com/v1.0/users/{id | user-principal-name}/chats/getAllMessages Note : Before you use this API with application permissions, you must request access for your app. For details, see Protected APIs in Microsoft Teams. Also , This API has licensing and payment requirements. It supports both model=A and model=B query parameters. If no model is specified, evaluation mode will be used. Please refer this documentation for more information on this. 2.List chats API : Retrieve the list of chats that the user is part of. Currently this API is only supported with delegated permissions scope. Please refer this documentation for more information on this. As per the error message that you shared above, it seems you are calling List chats API with application permisions. GET https://graph.microsoft.com/v1.0/users/{user-id | user-principal-name}/chats GET https://graph.microsoft.com/v1.0/me/chats GET https://graph.microsoft.com/v1.0/chats Note: Upon my testing, the above List chats API is returing the chat messages for Singed-in delegated user only but not for the other users.

Hope this helps.

If the answer is helpful and your question is resolved, please click "Accept Answer" and kindly upvote it. If you have any further questions about this answer, please click "Comment".

Answer 3

There is no way to get all chats list of all users in an organization.
You can get the list of chats that the user is part of.

 GET  https://graph.microsoft.com/v1.0/users/{user-id | user-principal-name}/chats  

Reference doc:chats-getallmessages

You can raise a user voice here: User Voice

Thanks,
Nivedipa

---

If the response is helpful, please click "Accept Answer" and upvote it. You can share your feedback via Microsoft Teams Developer Feedback link. Click here to escalate.