Microsoft Graph API Call

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1

Hi support,

I’m trying to use the ‘Call an API’ function in my flow to make a POST to Microsoft Graph to get an access token.

However, I receive an error:

“error”: “invalid_request”, “error_description”: "AADSTS900144: The request body must contain the following parameter: ‘grant_type’

The puzzling part is that my API call does have the ‘grant_type’ key in the body.

And when I copy the same key/value pairs into Postman and make the same request, it succeeds and returns the desired access token:

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Is the API call in my flow converting the ‘grant_type’ key into a non-string value?

2

Interesting. @DemocracyManifest - Could you please try this API call in the Run Code node or in a Custom node? Gumloop Custom Nodes

If it works in those nodes we can investigate what might be going wrong here.

3

Thanks for the response, Wasay.

I used a Run Code node with Python and was able to generate a token successfully.

4

Gotcha! Glad you’re unblocked. Could you share the run link from the history page where the ‘Call API’ was not working?

https://www.gumloop.com/history