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ReportI'm trying to access a Dynamics CRM Online REST API with Azure AD oAuth 2 Authentication. In order to do so I followed these steps:
- I've registered a web application and/or web api in Azure
- Configured the permissions to Dynamics CRM to have Delegated permissions "Access CRM Online as organization user"
- And created a Key with a 1 year expiration and kept the Client ID generated.
My code
package com.palmtree.crm.auth;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import javax.naming.ServiceUnavailableException;
import com.microsoft.aad.adal4j.AuthenticationContext;
import com.microsoft.aad.adal4j.AuthenticationResult;
import com.microsoft.aad.adal4j.ClientCredential;
import net.minidev.json.JSONObject;
import net.minidev.json.JSONValue;
public class App {
// CRM URL
private final static String RESOURCE = "palmtreeinfotech6.crm8.dynamics.com";
private final static String CLIENT_ID = "xxxxxxx-xxxxx-xxxxxxx-xxxxxxxxx";
private final static String CLIENT_SECRET_KEY = "xxxxxxxxxxxxxxxxxxxxxx";
private final static String TENANTID = "xxxxxxxxxxx-xxxx-xxxxx-xxxxxxx";
private final static String AUTHORITY = "login.microsoftonline.com" + TENANTID + "/oauth2/authorize";
public static void main(String args[]) throws Exception {
AuthenticationResult result = getAccessTokenFromUserCredentials();
System.out.println("Access Token - " + result.getAccessToken());
System.out.println("Token expires on - " + result.getExpiresOn());
//String userId = WhoAmI(result.getAccessToken());
//System.out.println("UserId - " + userId);
String fullname = FindFullname(result.getAccessToken(), "2b8fc8ca-86cd-e611-8109-c4346bdc0e01");
System.out.println("Fullname: " + fullname);
}
private static AuthenticationResult getAccessTokenFromUserCredentials() throws Exception {
AuthenticationContext authContext = null;
AuthenticationResult authResult = null;
ExecutorService service = null;
try {
service = Executors.newFixedThreadPool(1);
authContext = new AuthenticationContext(AUTHORITY, false, service);
ClientCredential clientCred = new ClientCredential(CLIENT_ID, CLIENT_SECRET_KEY);
Future<AuthenticationResult> future = authContext.acquireToken(RESOURCE, clientCred, null);
authResult = future.get();
} catch (Exception ex) {
System.out.println(ex);
} finally {
service.shutdown();
}
if (authResult == null) {
throw new ServiceUnavailableException("authentication result was null");
}
return authResult;
}
private static String FindFullname(String token, String userId) throws MalformedURLException, IOException {
System.out.println("AAAAAAAAAAAAAAAAAA");
HttpURLConnection connection = null;
//The URL will change in 2016 to include the API version - /api/data/v8.0/systemusers
URL url = new URL(RESOURCE + "/api/data/systemusers(" + userId + ")?$select=fullname");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("OData-MaxVersion", "4.0");
connection.setRequestProperty("OData-Version", "4.0");
connection.setRequestProperty("Accept", "application/json");
connection.addRequestProperty("Authorization", "Bearer " + token);
int responseCode = connection.getResponseCode();
BufferedReader in = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
Object jResponse;
jResponse = JSONValue.parse(response.toString());
JSONObject jObject = (JSONObject) jResponse;
String fullname = jObject.get("fullname").toString();
System.out.println("FULL NAME" + fullname);
return fullname;
}
private static String WhoAmI(String token) throws MalformedURLException, IOException {
HttpURLConnection connection = null;
//The URL will change in 2016 to include the API version - /api/data/v8.0/WhoAmI
URL url = new URL(RESOURCE + "/api/data/WhoAmI");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("OData-MaxVersion", "4.0");
connection.setRequestProperty("OData-Version", "4.0");
connection.setRequestProperty("Accept", "application/json");
connection.addRequestProperty("Authorization", "Bearer " + token);
int responseCode = connection.getResponseCode();
BufferedReader in = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
Object jResponse;
jResponse = JSONValue.parse(response.toString());
JSONObject jObject = (JSONObject) jResponse;
String userId = jObject.get("UserId").toString();
return userId;
}
}
I retrieve an access token successfully but when I try to do a httprequest to CRM I always get a 401 - Unauthorized status code. What am I missing?
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