Can't get Access Token

Question

Per the documentation, I've created an "installed package" in the admin panel of SFMC, which provides me a clientId and clientSecret. I'm using the Python requests library to make the call from my command line. This is just to get an accessToken, so the code is pretty straightforward:

import requests

url = 'https://auth.exacttargetapis.com/v1/requestToken'
headers = {'Content-Type': 'application/json'}
clientId = '123'
clientSecret = 'abc'

response = requests.request('POST', url,
                            headers=headers,
                            auth=(clientId, clientSecret),
                            verify=False)

print(response.text)

The verify flag is set to False for now because of unresolved issues with the Python package certifi, but this is a separate issue and shouldn't affect the request.

I don't know exactly what the issue is, but I always receive this error message:

{"message":"clientId is required","errorcode":10002,"documentation":""}

I'm supplying the clientId in the appropriate (Python) syntax, and it's such a simple request that I can't see why it's failing. Any help is much appreciated.

SFMC API documentation: https://developer.salesforce.com/docs/atlas.en-us.mc-getting-started.meta/mc-getting-started/mc-dev-setup.htm

Requests (Python HTTP library): http://docs.python-requests.org/en/master/

Answer 1

You need to send the clientId and clientSecret as the body of the POST not as an auth header like:

{
  "clientId": "gyjzvytv7ukqtfn3x2qdyfsn",
  "clientSecret": "************"
}

or a data key value pair like: data = {'clientId':'value'}