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v3 API C# Code Example

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We recommend using SendGrid C#, our client library, available on GitHub, with full documentation.

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Do you have an API Key yet? If not, go get one. You're going to need it to integrate!

Using SendGrid's C# Library

1// using SendGrid's C# Library
2// https://github.com/sendgrid/sendgrid-csharp
3using SendGrid;
4using SendGrid.Helpers.Mail;
5using System;
6using System.Threading.Tasks;
7
8namespace Example
9{
10    internal class Example
11    {
12        private static void Main()
13        {
14            Execute().Wait();
15        }
16
17        static async Task Execute()
18        {
19            var apiKey = Environment.GetEnvironmentVariable("NAME_OF_THE_ENVIRONMENT_VARIABLE_FOR_YOUR_SENDGRID_KEY");
20            var client = new SendGridClient(apiKey);
21            var from = new EmailAddress("test@example.com", "Example User");
22            var subject = "Sending with SendGrid is Fun";
23            var to = new EmailAddress("test@example.com", "Example User");
24            var plainTextContent = "and easy to do anywhere with C#.";
25            var htmlContent = "<strong>and easy to do anywhere with C#.</strong>";
26            var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, htmlContent);
27            var response = await client.SendEmailAsync(msg);
28        }
29    }
30}