Dart Requires Chilkat v11.0.0+

Microsoft Teams OAuth2 Client Credentials Authentication

See more Microsoft Teams Examples

Demonstrates how to authenticate with OAuth 2.0 using the client credentials grant type. Dart

import 'package:chilkat/chilkat.dart';

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

  final http = CkHttp();

  // Provide the information needed for Chilkat to automatically fetch the OAuth2.0 
  // access token as needed.
  // This is the new "Integrated OAuth2 Client Credentials" feature introduced in Chilkat v9.5.0.96.  
  final jsonOAuthCC = CkJsonObject();

  // --------------------------------------------------------------------------------------------------------
  // You'll need to have registered an app in Azure beforehand.
  // 
  // Note: Creating a Team requires the following Application permissions:
  // Team.Create, Teamwork.Migrate.All, Group.ReadWrite.All**, Directory.ReadWrite.All**
  // 
  // See How to Create an Azure App Registration for OAuth 2.0 Client Credentials
  // --------------------------------------------------------------------------------------------------------

  // Use the values from your App Registration in Azure.
  jsonOAuthCC.updateString('client_id', 'e1cd2318-xxxx-4916-bfd6-xxxxxxxxxxxx');
  jsonOAuthCC.updateString('client_secret', 'K.d8Q~RoJxxxxvCj_u_xxxxxxxxxxxxxxxxxxxxx');

  // You'll always use this scope for client credentials, because the allowed actions
  // are determined by the App Permissions defined when you registered the app in Azure.
  jsonOAuthCC.updateString('scope', 'https://graph.microsoft.com/.default');

  // The token endpoint includes your tenant ID.  Use your tenant ID (not the tenant ID shown here).
  jsonOAuthCC.updateString('token_endpoint', 'https://login.microsoftonline.com/112d7ed6-71bf-4eba-a866-738364321bfc/oauth2/v2.0/token');

  // Provide the OAuth2 information. Chilkat will use this information to automatically fetch the OAuth2 access token as needed,
  http.authToken = jsonOAuthCC.emit();

  // ------------------------------------------------------------------------------
  // To create a Microsoft Team, we want to send an HTTP request like the following:
  // 
  // Note: The following is the minimal JSON for a request using Applicaton permissions (i.e. the access token retrieved using the client credentials grant).
  // 
  // POST https://graph.microsoft.com/v1.0/teams
  // Content-Type: application/json
  // 
  // {
  //    "template@odata.bind":"https://graph.microsoft.com/v1.0/teamsTemplates('standard')",
  //    "displayName":"My Sample Team",
  //    "description":"My Sample Team�s Description",
  //    "members":[
  //       {
  //          "@odata.type":"#microsoft.graph.aadUserConversationMember",
  //          "roles":[
  //             "owner"
  //          ],
  //          "user@odata.bind":"https://graph.microsoft.com/v1.0/users('0040b377-61d8-43db-94f5-81374122dc7e')"
  //       }
  //    ]
  // }

  final json = CkJsonObject();
  json.updateString('"template@odata.bind"', 'https://graph.microsoft.com/v1.0/teamsTemplates(\'standard\')');
  json.updateString('displayName', 'My Sample Team');
  json.updateString('description', 'My Sample Team�s Description');
  json.updateString('members[0]."@odata.type"', '#microsoft.graph.aadUserConversationMember');
  json.updateString('members[0].roles[0]', 'owner');
  json.updateString('members[0]."user@odata.bind"', 'https://graph.microsoft.com/v1.0/users(\'4ee732c3-322e-4a6b-b729-2fd1eb5c6004\')');

  json.emitCompact = false;
  print(json.emit());

  http.setRequestHeader('Content-type', 'application/json');

  final resp = CkHttpResponse();
  try {
    http.httpJson('POST', 'https://graph.microsoft.com/v1.0/teams', json, 'application/json', resp);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // A successful response is indicated by a 202 response status code and an empty response body.
  print('Response Status Code: ${resp.statusCode}');
  print('Response Body:');
  print(resp.bodyStr);

  if (resp.statusCode >= 400) {
    print('Response Header:');
    print(resp.header);
    print('Failed.');
  }
}