exampleUsage function

Implementation

void exampleUsage() async {
  final apiService = ExampleApiService.shared;

  try {
    // Fetch user profile
    final userProfile = await apiService.fetchUserProfile('user123');
    print('User profile: $userProfile');

    // Create a new user
    final newUser = await apiService.createUser({
      'name': 'John Doe',
      'email': 'john@example.com',
      'password': 'securepassword',
    });
    print('New user created: $newUser');
  } on GtdError catch (error) {
    // Handle specific error codes
    if (error.statusCode == 401) {
      print('Authentication required. Please login again.');
    } else if (error.errorCode == 'VALIDATION_ERROR') {
      print('Please fix the following errors:');
      print('Validation failed');
    } else {
      // Generic error handling
      print('Error: ${error.message}');
    }
  } catch (e) {
    print('Unexpected error: $e');
  }
}