JIRA REST API authentication issue

[Yotam Sagiv]

Hi, so I'm trying to create a Java program that makes use of the JIRA REST API in order to receive information about the amount of issues in a certain project. Using curl, this is easy. Using Java, I run into a 401 Unauthorized error, and I'm not entirely sure why. Can someone help? My code is below.

import java.io.*;
import java.net.*;
import org.apache.commons.codec.binary.Base64;

public class JiraConnector
{
	public static void main(String[] args)
	{
		HttpURLConnection connection = null;
		try {
			//store necessary query information
			URL jiraURL = new URL("http://jira.somecompany.com/rest/api/2/search");
			String data = "{\"jql\":\"project = PROJ\"}";
			byte[] dataBytes = data.getBytes("UTF-8");
			String login = "user:password";
			byte[] encodedBytes = Base64.encodeBase64(login.getBytes());
			
			//establish connection and request properties
			connection = (HttpURLConnection) jiraURL.openConnection();
			connection.setRequestMethod("POST");
			connection.setRequestProperty("Accept", "*/*");
			connection.setRequestProperty("Content-Type", "application/json");
			connection.setRequestProperty("Authorization", "Basic " + encodedBytes);
			connection.setUseCaches(false);
			connection.setDoOutput(true);
			connection.setDoInput(true);

			connection.connect();
			
			DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
				wr.write(dataBytes);
				wr.flush();
				wr.close();
			
			Reader in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
			for (int c; (c = in.read()) >= 0; System.out.print((char)c));
		
		} catch (MalformedURLException e) {
			System.err.println("MalformedURLException: " + e.getMessage());
		} catch (IOException e) {
			System.err.println("IOException: " + e.getMessage());
			
			if (connection != null) {
				try {
					System.out.println(connection.getResponseMessage());
					
					InputStream errorStream = connection.getErrorStream();
					if (errorStream != null) {
						Reader in = new BufferedReader(new InputStreamReader(errorStream));
						for (int c; (c = in.read()) >= 0; System.out.print((char) c));
					}
				} catch(IOException e2) {}	
			}
		}		
	}
}

[Yotam Sagiv · Accepted solution]

Update:

Found the problem. Basic authorization needed me to send a String of the encoded bytes, rather than a byte[].

[Marketa Dvorackova]

Thank you so much as much as it's possible. You've just saved me hours of wondering what the hell is going on with my script. Really thanks!

[Tiago Comasseto]

Hi Yotam,

We how some samples of OAuth providers in a number of languages, including JAVA. You may visit the sample repo on Bitbucket to download and work with these samples. You may also check this documentation for more details.

Cheers