Dart Requires Chilkat v11.0.0+

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.

Dart

import 'package:chilkat/chilkat.dart';

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

  final http = CkHttp();

  final req = 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
  final url = 'https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token';

  req.httpVerb = 'POST';
  req.contentType = 'application/x-www-form-urlencoded';

  final resp = CkHttpResponse();
  try {
    http.httpReq(url, req, resp);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final statusCode = resp.statusCode;
  print('Response status code = $statusCode');

  final json = CkJsonObject();
  json.load(resp.bodyStr);

  json.emitCompact = false;
  print(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');
    print('Success.');
  } else {
    print('Failed.');
  }
}