Android™

Azure OAuth2 Client Credentials Grant Flow

See more OAuth2 Examples

Demonstrates how to get an OAuth2 access token for an Azure Registered App using the Client Credentials Grant Flow.

Note: Your Azure app must be registered as a single-tenant app to use client credentials.

Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    CkHttpRequest req = new CkHttpRequest();
    req.AddParam("client_secret","CLIENT_SECRET");
    req.AddParam("client_id","CLIENT_ID");

    // See Understanding Scopes in Azure OAuth2 Client Credentials Flow
    req.AddParam("scope","https://graph.microsoft.com/.default");

    req.AddParam("grant_type","client_credentials");

    // Note: Your Azure app must be registered as a single-tenant app to use client credentials.
    // Use your own tenant ID, for example 4d8fdd66-66d1-43b0-ae5c-e31b4b7de5cd
    String url = "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token";

    req.put_HttpVerb("POST");
    req.put_ContentType("application/x-www-form-urlencoded");

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpReq(url,req,resp);
    if (success == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    int statusCode = resp.get_StatusCode();
    Log.i(TAG, "Response status code = " + String.valueOf(statusCode));

    CkJsonObject json = new CkJsonObject();
    json.Load(resp.bodyStr());

    json.put_EmitCompact(false);
    Log.i(TAG, json.emit());

    // Sample successful output:

    // {
    //   "token_type": "Bearer",
    //   "expires_in": 3599,
    //   "ext_expires_in": 3599,
    //   "access_token": "eyJ0eX...K0jOERg"
    // }

    if (statusCode == 200) {
        json.WriteFile("qa_data/tokens/azureClientCredentialsToken.json");
        Log.i(TAG, "Success.");
        }
    else {
        Log.i(TAG, "Failed.");
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}