Microsoft Graph API Authorization Code

Question

So I am trying to set up Microsoft Graph API to make Teams calls. I work in a government tenant, GCC High environment. I have successfully been able to get the authorization code, use it to get the access token and create and get a meeting. My question is how do I go about getting an authorization code without going thru the browser and logging in?

Answer 1

Hi @Ken Exton ,

Here is documentation for getting the authorization and access without the user:

For more information: https://learn.microsoft.com/en-us/graph/auth-v2-service

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Answer 2

Hi @Ken Exton

In short, it is impossible.

The authorization code can only be obtained by interactively logging in the user in the browser. Refer to a high-level view of the authentication code flow:

If you don't want to interact with users in the browser, then you can try ROPC flow. The ROPC flow doesn't require you to get an authorization code in the browser to redeem an access token, you just need to hardcode your username/password on the backend.

Both of the above authentication flows require user participation to obtain a user token, if your context supports application-only permissions then you can also use the daemon-based client credentials flow.

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