title: getting the profile image from twitter
body: <pre><code>{
      NSString *postUrl =  @"http://api.twitter.com/1/users/profile_image.json ";
      ASIFormDataRequest *request = [[ASIFormDataRequest alloc]
                                     initWithURL:[NSURL URLWithString:postUrl]];
      [request addRequestHeader:@"Authorization"
                          value:[oAuth oAuthHeaderForMethod:@"GET"
                                                     andUrl:postUrl
                                                  andParams:nil]];
      [request setPostValue: userName forKey:@"screen_name"]; 
      [request startSynchronous];
  }
  </code></pre>
  
  <p>In my application I want to show the twitter profile image of the user who uses this application which is for uploading images to twitter. How can I retrieve the profile image of the user? I am using the url  <a href="http://api.twitter.com/1/users/profile_image/:screen_name.format" rel="nofollow">http://api.twitter.com/1/users/profile_image/:screen_name.format</a> for this. And ASIHTTP GET method.But it fails. Can anyone help me to do this? The code i am using is given above.</p>