Sendgrid: how to use webhook for to get notification email in C#?

//I have used following method
//This is my api which i have put in Sendgrid > Mail Settings > Event Notification >

//http://username:pwd@beta.comivo.com/api/sendGrid/Webhook

<pre>[Route("Webhook")]
        [HttpPost]
        public void SendGrid([FromBody]SendGridSentEvent[] eventList)
        {
            try
            {

                if (eventList != null && eventList.Count() > 0)
                {
                    foreach (var eve in eventList)
                    {
                        SendgridWebhookModel sendGridEvent = new SendgridWebhookModel();
                        sendGridEvent.status = eve.status;
                        this.sendGridWebHookRepository.SaveWebhookDetail(sendGridEvent);
                    }
                }

            }
            catch (Exception ex)
            {
                //return jsonArray;
            }


            //return jsonArray;
        }