Implementing Mailgun's RESTful API for Email in Java

Other Questions Mailgun
1

I’m struggling to use Mailgun’s RESTful API for sending transactional emails in my Java project. SMTP works fine, but I want to switch to their API.

The Mailgun docs give this example:

public static MailResponse sendEmail() {
    MailClient mailClient = MailClient.create();
    mailClient.addAuth(new BasicAuth("api", "key-*****"));
    
    EmailResource resource = mailClient.resource("https://api.mailgun.net/v2/MYDOMAIN/messages");
    
    EmailForm form = new EmailForm();
    form.add("from", "Sender <noreply@MYDOMAIN>");
    form.add("to", "[email protected]");
    form.add("subject", "Test Email");
    form.add("text", "This is a test email via Mailgun API!");
    
    return resource.type("application/x-www-form-urlencoded")
           .post(MailResponse.class, form);
}

I’m using Eclipse and Java EE without Maven. Can someone explain how to set this up step-by-step? What REST client should I use? I’m new to RESTful APIs and could use some guidance.

2

I’ve been using Mailgun’s API in my Java projects for a while now, and I find the OkHttp library to be incredibly simple and effective. It’s lightweight and doesn’t require a ton of dependencies.

First, download the OkHttp JAR and add it to your Eclipse project’s build path. Then, you can create a simple method to send emails using Mailgun’s API. Here’s a basic example:

OkHttpClient client = new OkHttpClient();
String apiKey = "your-api-key";
String domain = "your-domain.com";

RequestBody formBody = new FormBody.Builder()
    .add("from", "Sender <[email protected]>")
    .add("to", "[email protected]")
    .add("subject", "Test Email")
    .add("text", "This is a test email via Mailgun API!")
    .build();

Request request = new Request.Builder()
    .url("https://api.mailgun.net/v3/" + domain + "/messages")
    .post(formBody)
    .addHeader("Authorization", Credentials.basic("api", apiKey))
    .build();

Response response = client.newCall(request).execute();

This approach has worked well for me in production. Let me know if you need any clarification on implementing this in your project.

3

For implementing Mailgun’s API in Java without Maven, I’d recommend using the Apache HttpClient library. It’s robust and well-documented for RESTful operations. First, download the required JAR files from the Apache HttpClient website and add them to your project’s build path in Eclipse. Then, you can use HttpClient to construct and send POST requests to Mailgun’s API endpoint. You’ll need to set up the authentication headers, form parameters, and handle the response. If you’re not familiar with HttpClient, their documentation provides excellent examples to get you started. Let me know if you need more specific code snippets or clarification on any steps.

4

hey aroberts, have u tried using the Jersey client library? It’s pretty straightforward for REST calls. You’ll need to add the Jersey JAR files to ur project classpath in Eclipse. Then you can use Jersey’s ClientBuilder to create a Client object and send POST requests to Mailgun’s API endpoint. lemme know if u need more help!