Is there an api endpoint to list files in private chat?

Question

I am looking for a way to get the number of files in a private chat using the Microsoft Graph API.

Currently I can get the messages from private chat using:

beta/users/{user_id}/chats/{chat_id}/messages

Another API is the 'List children of a driveItem' - https://docs.microsoft.com/en-us/graph/api/driveitem-list-children?view=graph-rest-1.0&tabs=http to get the number of files for a channel - that looks like this:

/teams/{team_id}/channels/{channel_id}/messages

And get a response like this:

value ': [{
' id ': ' 123456'},
' user ': {' displayName ': ' Username ',
' folder ': {' childCount ': 9}]

And I can access the childCount parameter

Problem is, that it receives only team ID - and not chat ID.

So I am looking for an API that just receive the chat ID and send in response the information, just the the 'List children of a driveItem' API

If there is a way to get the drive-id of a private chat it would be good as well since I will use the same list children API and it should work, right?

Thanks!

Answer 1

Chats threads don't have a drive as only teams have a drive associated with them. However you can get the list of all chat messages which contains attachments[] for files shared in private chat using below API:

beta/users/{user_id}/chats/{chat_id}/messages

So here ChatId is available along with the attachments[] like below:

"attachments": [ { "id": "4a000672-3234-4306-8c01-b6e6fea43f22", "contentType": "reference", "contentUrl": "https://m365x645306.sharepoint.com/sites/SiteName/Shared Documents/Test/My-Tasks.csv", "content": null, "name": "My-Tasks.csv", "thumbnailUrl": null } ],

So based on the attachments, you can get the number of files attached in this private chat along with it's SharePoint content URL.