title: How to send and Receive messages using Facebook Messenger API
body: <p>i am using C# library for FB Messenger API here - <a href="https://www.nuget.org/packages/facebook-messenger-net-lib/" rel="nofollow">https://www.nuget.org/packages/facebook-messenger-net-lib/</a> </p>
  
  <p>But i think there is lack of some documentation . i am trying below code to send message but message is not delivering . Token I am using is Page Access Token generated from Graph api explorer tools. </p>
  
  <p>Code I am trying ( Console Application Code )</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  using FacebookMessengerLib;
  namespace FmAPI
  {
      class Program
      {
          static void Main(string[] args)
          {
              MessengerAPI obj = new MessengerAPI("EAACEdEose0cBAOSSBMZAZCd2OTZBT95ZBQbdd69B4eRbWcrWFdZAvUOrnk57DrnaHZARh3lIgZBGxzolZAMjQry9fiZCFjFzQEJJElZATgzTIQB3HsTZCyaimLzeetd37LhTG3yhwfGlxE7ojtdnupopsN3s1ZAzSgQPuxSsgf56MqpJPwZDZD");
              obj.SendTextMessageAsync(660746514005471, "Hello");
          }
      }
  }
  </code></pre>