MSTeams Graph API: Gateway timeout error when querying direct messages

Question

Hi,

While querying the getAllMessages endpoint (chats-getallmessages) a Gateway timeout error response is being thrown. The "code" returned is "Unknown error". The query parameters that were added to getAllMessages are: "?model=B&$top=1000"

Below is the error response:

Gateway Timeout

{    
  "code": "UnknownError",   
    "message": "",    
    "innerError": {      
     "date": "2022-03-30T23:41:48",      
     "request-id": "2551eebe-0f44-4f56-a474-aaa8f81213f1",..  
 }  

Thanks

Answer 1

Hi @Tarun George Koshy

GetAllMessages API is not supported in delegated Context. If you are using Application permissions to get all the messages across all chats, it requires additional validation as this particular API comes under Protected APIs. To request access for this protected API, you need to submit the request and get approval.

Documentation reference- https://learn.microsoft.com/en-us/graph/teams-protected-apis

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