Why does AcquireToken with ClientCredential fail with invalid_client (ACS50012)?

Question

Why won\'t my Azure AD application allow an oauth client_credentials grant?

I want to use the Azure Graph API, but first I need an oauth token. To get the token, I am tr

Answer 1

The azure version of the translator has changed things once more- the Oauth token request uses a new url and only needs your secret key, instead of all the other baggage. This page discusses it (but using PHP code): http://www.bradymoritz.com/php-code-for-bingmicrosoftazure-translator/

The key items are:

1. Post an empty request to https://api.cognitive.microsoft.com/sts/v1.0/issueToken
2. Pass it your secret key using the header "Ocp-Apim-Subscription-Key: "
3. Or, just use the querystring parameter: "Subscription-Key="

Then get the body of the return as the actual token- it's the whole body, not in json format.

This is a lot simpler than the method used before, but it'd definitely a pain that things have yet again changed.