/// <summary>
/// Using the provided Request Token, retrieve the associated Access Token,
/// if one has been authorized.
/// </summary>
/// <param name="requestTokenKey">The key of the Request Token.</param>
/// <param name="store">Token storage provider.</param>
/// <returns>If the Access Token is valid, returns the token. If not, returns null.</returns>
public static ServerAccessToken RetrieveAccessTokenUsingRequestToken(string requestTokenKey, IServerTokenStore store)
{
ServerRequestToken requestToken = store.FindRequestToken(requestTokenKey);
if (requestToken == null || String.IsNullOrEmpty(requestToken.AccessTokenKey))
{
return null;
}
ServerAccessToken accessToken = store.FindAccessToken(requestToken.AccessTokenKey);
store.DeleteRequestToken(requestTokenKey);
return accessToken;
}
