I am trying to access an API using an oauth2 authorization token in Java Here is the client code
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpPost post = new HttpPost("");
post.setHeader("Content-Type","application/json");
post.setHeader("Authorization", "Bearer " + finalToken);
JSONObject json = new JSONObject();
// json.put ...
// Send it as request body in the post request
StringEntity params = new StringEntity(json.toString());
post.setEntity(params);
HttpResponse response = httpclient.execute(post);
httpclient.getConnectionManager().shutdown();
This returns a 401.
An equivalent curl command works with no issues with the same token:
curl -H "Content-Type:application/json" -H "Authorization:Bearer randomToken" -X POST -d @example.json
I tried logging out the request and it looks like the authorization is set correctly
DEBUG [2016-06-28 20:51:13,655] org.apache.http.headers: >> Authorization: Bearer authRandomToKen; Path=/; Domain=oauth2-server; Expires=Wed, 29 Jun 2016 20:51:13 UTC
I tried out the curl command by copy-pasting this same token and t works fine
Although I also see this line
DEBUG [2016-06-28 20:51:13,658] org.apache.http.impl.client.DefaultHttpClient: Response contains no authentication challenges
3 Answers
I have come across similar situation, I was able to do it by following way, I hope this will help others.
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class HttpURLConnectionExample {
public static void main(String[] args) throws Exception {
// Sending get request
URL url = new URL("");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestProperty("Authorization","Bearer "+" Actual bearer token issued by provider.");
//e.g. bearer token= eyJhbGciOiXXXzUxMiJ9.eyJzdWIiOiPyc2hhcm1hQHBsdW1zbGljZS5jb206OjE6OjkwIiwiZXhwIjoxNTM3MzQyNTIxLCJpYXQiOjE1MzY3Mzc3MjF9.O33zP2l_0eDNfcqSQz29jUGJC-_THYsXllrmkFnk85dNRbAw66dyEKBP5dVcFUuNTA8zhA83kk3Y41_qZYx43T
conn.setRequestProperty("Content-Type","application/json");
conn.setRequestMethod("GET");
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String output;
StringBuffer response = new StringBuffer();
while ((output = in.readLine()) != null) {
response.append(output);
}
in.close();
// printing result from response
System.out.println("Response:-" + response.toString());
}
}
I was trying to do something similar using HttpClient and I got it working by making a small change as below.
post.setHeader(HttpHeaders.CONTENT_TYPE,"application/json");
post.setHeader(HttpHeaders.AUTHORIZATION, "Bearer " + finalToken);
I have implemented above given code for receiving Pipedream SSE real time events.Below The Below Code is working fine in Eclipse WITHOUT a 401 ERROR.
package //////YOUR PACKAGE NAME HERE/////
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class HttpURLConnectionExample {
public static void main(String[] args) throws Exception {
// Sending get request
URL url = new URL(" Server website");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestProperty("Accept", "application/json");
conn.setRequestProperty("Authorization","Bearer PLACE.HERE");
//e.g. bearer token= eyJhbGciOiXXXzUxMiJ9.eyJzdWIiOiPyc2hhcm1hQHBsdW1zbGljZS5jb206OjE6OjkwIiwiZXhwIjoxNTM3MzQyNTIxLCJpYXQiOjE1MzY3Mzc3MjF9.O33zP2l_0eDNfcqSQz29jUGJC-_THYsXllrmkFnk85dNRbAw66dyEKBP5dVcFUuNTA8zhA83kk3Y41_qZYx43T
//conn.setRequestProperty("Content-Type","application/json");
conn.setRequestMethod("GET");
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String output;
StringBuffer response = new StringBuffer();
while ((output = in.readLine()) != null) {
System.out.println("Response:-" + output.toString());
////you will get output in "output.toString()" ,Use it however you like
}
in.close();
}
}
