Problem with authorization headers - Error: 401 Unauthorized

[tomayalon]

Hey,

I’m working on a .NET desktop app that simply pulls tweets for a user and sorts them. I am currently able to do everything unauthenticated, but I would like to authenticate the user to be able to pull mentions and have a higher request limit. I am using a pin-based authentication process. I am able to retrieve the pin and generate an access token. However, when I try to send a WebRequest to the API with my authorization headers, I receive a 401.

Here is the header format I am using:

OAuth oauth_callback=“oob”, oauth_consumer_key=“KEY_HERE”, oauth_nonce=“4n2l62q6”, oauth_signature=“mSyVZhikHi%2Fhp1bXonlEhtZuOh0%3D”, oauth_signature_method=“HMAC-SHA1”, oauth_timestamp=“1326733809”, oauth_token=“459442112-kLz3jkHAmqWRktrqRfNr1BCvnZgfXo31Wxw1CEUw”, oauth_verifier=“7588205”, oauth_version=“1.0”

I am creating a new header for each request, and I am adding the string to the Authorization key of the request’s Header. Can anyone please help me figure why the request is not going through?

Thanks!

[kurrik]

Which URL gives you the 401? Note that you shouldn’t send oauth_callback for any requests except the request_token fetch (which appears to work correctly for you). Also make sure that any parameters you’re sending to the API are included when generating your signature.