title: Issue with endpoints when converting GCM app to FCM
body: <p>I'm converting my GCM app to FCM using <a href="https://developers.google.com/cloud-messaging/android/android-migrate-fcm" rel="nofollow noreferrer">this guide</a>.  My server code is written in C# running on an ASP.NET Web REST Service.  Existing code that does the post is as follows . . .</p>
  
  <pre><code>    HttpWebRequest Request = (HttpWebRequest)WebRequest.Create("https://android.googleapis.com/gcm/send");
      Request.Method = "POST";
      Request.KeepAlive = false;
      Request.ContentType = "application/json";
      Request.Headers.Add(string.Format("Authorization: key={0}", apiKey));
      Request.ContentLength = byteArray.Length;
      Stream dataStream = Request.GetRequestStream();
      dataStream.Write(byteArray, 0, byteArray.Length);
      dataStream.Close();
  </code></pre>
  
  <p>In the "Update server endpoints" it says the old gcm endpoint of </p>
  
  <blockquote>
    <p>gcm-http.googleapis.com/gcm/</p>
  </blockquote>
  
  <p>should be converted to </p>
  
  <blockquote>
    <p>fcm.googleapis.com/fcm/</p>
  </blockquote>
  
  <p>However I have not been using that endpoint.  I have been using</p>
  
  <blockquote>
    <p>android.googleapis.com/gcm/send</p>
  </blockquote>
  
  <p>very successfully for years.  I don't remember why I have /send.  Should I also append it to the new endpoint?</p>