Get a Request Token (get_request_token) - YDN

Get a Request Token (get_request_token) - YDN: Before your Users get involved, your application uses your Consumer Key to obtain a Request Token (OAuth Core 1.0 Spec, Section 6.1).The Request Token is a temporary token used to initiate User authorization for your application. The Request Token tells Yahoo! that you've obtained User approval, but must be exchanged, along with the OAuth Verifier, for an Access Token. The Request Token is intentionally short so that a User can type it manually as part of the redirect URL in cases where the application cannot launch a browser (such as a mobile phone app or a device that has no browser).