I'm using OAuth to authenticate in a three-legged scenerio. I'm able to receive the access token and secret, but I'm confused about the last part. Step 4 says "Now you can call any Constant Contact REST based API using OAuth." My problem is that all of the API documentation shows making calls to urls that include the username, but I don't have the username. Best I can tell there isn't an api call I can make to get the username either. Services like twitter solve this problem by passing back the username along with the access token.
So my questions boils down to:
Is there a way to make calls to the api without a username?
And if not . . .
Is there a way to get the username from the API?
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