title: IOS SDK + Youtube API + NoLinkedYouTubeAccount
body: <p>I have add youtube APi in my application and I have successfully authorized my account and get access token from google via auth 2.0. </p>
  
  <p>but now i want to add comment on video and i am getting error as below:
  1. invalide token
  2. NoLinkedYouTubeAccount
  etc.</p>
  
  <p>i thought, i am not able to correctly use and understand Authorization: Bearer ACCESS_TOKEN
  statement of google and i am confusing how to pass my token with my call.</p>
  
  <p>My code is as below:</p>
  
  <pre><code>    NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
          NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]];
          [theRequest addValue: @"application/atom+xml" forHTTPHeaderField:@"Content-Type"];
          [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
          [theRequest addValue:[NSString stringWithFormat:@"Bearer %@",@"my token" forHTTPHeaderField:@"Authorization"];
          [theRequest addValue: @"2" forHTTPHeaderField:@"GData-Version"];
          [theRequest addValue: @"key=mykey" forHTTPHeaderField:@"X-GData-Key"];
  
          [theRequest setHTTPMethod:@"POST"];
  </code></pre>
  
  <p>Can you help me to solve this issue and suggest me to call correct way?</p>
  
  <p>Thanks</p>