Implementing Google calendar webhooks

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google-api

Hi All,

I am very new to google apis can i am trying to implement google calendar webhooks where i am trying to get the notification if there is any event added to the calendar....

I have added my domain to Search Console verified teh domain too...

I have added my domain in the Domain verification section too..

I am using this below link to test :

https://developers.google.com/google-apps/calendar/v3/reference/events/watch

Now i am trying to validate then it is throwing an exception as : Unauthorized WebHook callback channel: https://www.test.com/

Can you please let me know what am i missing

It would be of great help if you can provide me some working code...

What I have tried:

I have tried sending as :

"address": "https://www.test.com/notification.aspx",
"id": "01234567-89ab-cdef-0123456789ab",
"type": "web_hook"

Return i am getting as :

{
"error": {
"errors": [
{
"domain": "global",
"reason": "push.webhookUrlUnauthorized",
"message": "Unauthorized WebHook callback channel: https://www.test.com/notification.aspx"
}
],
"code": 401,
"message": "Unauthorized WebHook callback channel: https://www.test.com/notification.aspx"
}
}



I have also tried :

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://www.googleapis.com/calendar/v3/calendars/xxx@gmail.com/events/watch");
          request.Method = "POST";


          request.ContentType = "application/json";
          string postData = "type=web_hook&id=01234567-89ab-cdef-0123456789ab&address=https://www.xxx.com/notification.aspx";
          byte[] bytes = Encoding.UTF8.GetBytes(postData);
          request.ContentLength = bytes.Length;

          Stream requestStream = request.GetRequestStream();
          requestStream.Write(bytes, 0, bytes.Length);

          WebResponse response = request.GetResponse();
          Stream stream = response.GetResponseStream();
          StreamReader reader = new StreamReader(stream);

          var result = reader.ReadToEnd();
          stream.Dispose();
          reader.Dispose();