Redirect_uri issue when authenticating user with live account.

Question

Hello,
i am working with a MVC application which is using OAuthWebSecurity to authenticate the user through live account, i am able to get access code and see the login page, but while getting access token i get the exception "The provided value for the 'redirect_uri'
is not valid. The value must exactly match the redirect URI used to obtain the authorization code", i have checked couple of times the redirect_uri, it is same at the time of login request and at the time of getting access token, i dont get this exception
for the first login, i get after the first login, following is the code where i get the exception.
   Exception asyncEx = null;
            LiveLoginResult liveAuthResult = null;
            LiveAuthClient client = new LiveAuthClient(ClientId, ClientSecret, "");
           //below i'm retrieving the url i have passed at request login. 
            string redirectUrl = (string)context.Items["DefaultRedirectUrl"];
           //i get the exception from out param asyncEx
            liveAuthResult = AsyncToSyncUtility.RunSync(() =>
                return client.ExchangeAuthCodeAsync(context);
            }, out asyncEx);
i don't know whether the problem is with the code or from live provider, can any one help me to resolve this redirect_uri issue..?

Answer 1

Are you using the LiveSDK?  You may want to see if the access token request is formed correctly using the following format.
POST https://login.live.com/oauth20_token.srf
Content-type: application/x-www-form-urlencoded
client_id=CLIENT_ID&redirect_uri=REDIRECT_URI&client_secret=CLIENT_SECRET&code=AUTHORIZATION_CODE&grant_type=authorization_code
It's difficult to tell how your code is actually building the request to send to the OAuth server.