Dart

Google OAuth2 v3 userinfo (https://www.googleapis.com/oauth2/v3/userinfo)

See more Google APIs Examples

Demonstrates how to get the Google OAuth2 v3 userinfo.

Important: Make sure the OAuth2 access token included "profile" in the list of scopes.

Dart

import 'package:chilkat/chilkat.dart';

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

  // It is assumed we previously obtained an OAuth2 access token.
  // This example loads the JSON access token file 
  // originally obtained by this example: Get Google People API OAuth2 Access Token
  // or refreshed by this example: Refresh Google People API OAuth2 Access Token

  final jsonToken = CkJsonObject();
  try {
    jsonToken.loadFile('qa_data/tokens/googlePeople.json');
  } on ChilkatException {
    print('Failed to load googleContacts.json');
    return;
  }

  final http = CkHttp();

  // -------------------------------------------------------------------------------------
  // Make sure the access token was obtained with "profile" included in the list of scopes.
  // -------------------------------------------------------------------------------------
  http.authToken = jsonToken.stringOf('access_token');

  final sbResponseBody = CkStringBuilder();
  try {
    http.quickGetSb('https://www.googleapis.com/oauth2/v3/userinfo', sbResponseBody);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    print(sbResponseBody.getAsString());
    return;
  }

  // Sample JSON Response

  final json = CkJsonObject();
  json.emitCompact = false;
  json.load(sbResponseBody.getAsString());
  print(json.emit());

  // Sample response:

  // {
  //   "sub": "119999690625687999964",
  //   "name": "Matt",
  //   "given_name": "Matt",
  //   "picture": "https://lh3.googleusercontent.com/-b4...eg3Zjo/AAAAAAAAAAI/AAAAAAAAAAA/AMZuu....3RpdA/s96-c/photo.jpg",
  //   "locale": "en"
  // }
  // 
}