v3 API Java Code Example

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We recommend using SendGrid Java, 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 Java Library

The following example sends a single email with the Twilio SendGrid Java library. Set your API key in the SENDGRID_API_KEY environment variable, then build and send the message.

Send an email with the Twilio SendGrid Java library

1// using SendGrid's Java Library
2// https://github.com/sendgrid/sendgrid-java
3import com.sendgrid.*;
4import com.sendgrid.helpers.mail.*;
5import com.sendgrid.helpers.mail.objects.*;
6import java.io.IOException;
7
8public class Example {
9  public static void main(String[] args) throws IOException {
10    Email from = new Email("test@example.com");
11    String subject = "Sending with SendGrid is Fun";
12    Email to = new Email("test@example.com");
13    Content content = new Content("text/plain", "and easy to do anywhere, even with Java");
14    Mail mail = new Mail(from, subject, to, content);
15
16    SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
17    Request request = new Request();
18    try {
19      request.setMethod(Method.POST);
20      request.setEndpoint("mail/send");
21      request.setBody(mail.build());
22      Response response = sg.api(request);
23      System.out.println(response.getStatusCode());
24      System.out.println(response.getBody());
25      System.out.println(response.getHeaders());
26    } catch (IOException ex) {
27      throw ex;
28    }
29  }
30}