SendGrid 'DeliverAsync()' Not Working - api

Question

I'm trying to send an email with Azure and SendGrid. I have it all set up (I think) and my code is as per below, but the 'DeliverAsync()' method is not working and there is no 'Deliver()' option available.
Here are my using statements:
using System;
using System.Web;
using System.Web.UI;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Net;
using System.Net.Mail;
using SendGrid;
Here is my code: 'transportWeb.DeliverAsync(myMessage)' is showing as plain black text.
// Create the email object first, then add the properties.
var myMessage = new SendGridMessage();
myMessage.AddTo("d#gmail.com");
myMessage.From = new MailAddress("d#gmail.com", "John Smith");
myMessage.Subject = "Testing the SendGrid Library";
myMessage.Text = "Hello World!";
var apiKey = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
// create a Web transport, using API Key
var transportWeb = new Web(apiKey);
// Send the email, which returns an awaitable task.
transportWeb.DeliverAsync(myMessage);
I'm hoping someone has seen this before and knows the solution. There are a lot of similar problems online, but none I've found with a fix to this. I am using SendGrid v6.3.4. I have tried reverting to v6.3.3 but it didnt help. My stats in SendGrid show zero for everything, no emails sent, no requests, no bounces etc.
UPDATE:
I have tried creating a new Email class to remove any clutter and make this clearer, the 'DeliverAsync' method is still not being recognized after transportWeb.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net;
using System.Net.Mail;
using SendGrid;
using System.Threading.Tasks;
namespace CPWebsite
{
public class Email
{
static async void Main()
{
try
{
// Create the email object first, then add the properties.
var myMessage = new SendGridMessage();
myMessage.AddTo("d#gmail.com");
myMessage.From = new MailAddress("d#gmail.com", "John Smith");
myMessage.Subject = "Testing the SendGrid Library";
myMessage.Text = "Hello World!";
var apiKey = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
// create a Web transport, using API Key
var transportWeb = new Web(apiKey);
// Send the email, which returns an awaitable task.
await transportWeb.DeliverAsync(myMessage);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
}
I have also tried changing var myMessage = new SendGridMessage(); to SendGridMessage myMessage = new SendGridMessage(); but no luck. Only the following using statements are showing as necessary.
using System;
using System.Net.Mail;
using SendGrid;
Im trying anything at this point!

Answer 1

Is this a console app currently? You'll need to await the method otherwise the console apps main thread will complete execution and cause the worker threads to be killed before they successfully deliver the message.
Try:
await transportWeb.DeliverAsync(myMessage);
Also add the following to your using statements:
using System.Threading.Tasks;

Answer 2

My project (Windows Service) was essentially synchronous with respect to specific thread where SendGrid was called, and hence what I had to do to make it work is to add .Wait() after the .DeliverAsync().
And so, try:
static void Main()
and later:
transportWeb.DeliverAsync(myMessage).Wait();
There is actually a little foot-note in SendGrid documentation eluding to this technique.
Cheers.

Answer 3

I don't know if this has been resolved but try using myMessage.Html for the body instead of myMessage.Text. Especially if you are using html in the body. I have pretty much the same setup and my code works fine.