MailChimp Internship Application Extra Credit

MailChimpDriver.java

/**
 * @author Kevin Bohinski <bohinsk1@tcnj.edu>
 * @version 1.0
 * @since 2015-10-22
 *
 * Project Name:  MailChimp Internship Application
 * Description:   "Extra credit for sending us a code sample to 
 *                 codesample@mailchimp.com as an attachment using 
 *                 the Mandrill API (send the code sample that's 
 *                 sending itself as the attachment - don't use SMTP 
 *                 or an API wrapper library, make an HTTP request 
 *                 all by yourself)"
 *
 * Filename:      MailChimpDriver.java
 * Description:   Driver class used for sending the email.
 * Last Modified: 2015-10-22
 *
 * Copyright (c) 2015 Kevin Bohinski. All rights reserved.
 */

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.Base64;
import javax.net.ssl.HttpsURLConnection;

public class MailChimpDriver {

	/**
	 * Main method, executes program.
	 * 
	 * @param args
	 */
	public static void main(String[] args) throws Exception {
		String urlStr = "https://mandrillapp.com/api/1.0/messages/send.json";
		String key = "";
		String body = "Internship Application Extra Credit!";
		String subject = body;
		String fromEmail = "bohinsk1@tcnj.edu";
		String fromName = "Kevin Bohinski";
		String toEmail = "bohinsk1@tcnj.edu";
		String attachName = "Source.txt";
		String attachBody = "Source Availiable At: ";

		String attachmentEncoded = Base64.getEncoder()
				.encodeToString(attachBody.getBytes("utf-8"));
		String urlParams = "{\"key\":\"" + key + "\",\"message\":{\"text\":\""
				+ body + "\",\"subject\":\"" + subject + "\",\"from_email\":\""
				+ fromEmail + "\",\"from_name\":\"" + fromName
				+ "\",\"to\":[{\"email\":\"" + toEmail
				+ "\",\"type\":\"to\"}],\"attachments\":[{\"type\":\"text/plain\",\"name\":\""
				+ attachName + "\",\"content\":\"" + attachmentEncoded
				+ "\"}]}}";

		URL url = new URL(urlStr);
		HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
		conn.setRequestMethod("POST");
		conn.setDoOutput(true);

		DataOutputStream out = new DataOutputStream(conn.getOutputStream());
		out.writeBytes(urlParams);
		out.flush();
		out.close();

		int response = conn.getResponseCode();

		System.out.println("Sending POST request:");
		System.out.println("  URL: " + urlStr);
		System.out.println("  Params: " + urlParams);
		System.out.println("\nResponse Code: " + response);

		BufferedReader in = new BufferedReader(
				new InputStreamReader(conn.getInputStream()));
		String line = "";
		StringBuilder sb = new StringBuilder();
		while ((line = in.readLine()) != null) {
			sb.append(line);
		}
		System.out.println(sb.toString());
	}

}