googleapis_auth/lib/src/access_token.dart

// Copyright 2021 Google LLC
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd

/// An OAuth2 access token.
class AccessToken {
  /// The token type, usually "Bearer"
  final String type;

  /// The access token data.
  final String data;

  /// Time at which the token will be expired (UTC time)
  final DateTime expiry;

  /// [expiry] must be a UTC `DateTime`.
  AccessToken(this.type, this.data, this.expiry) {
    if (!expiry.isUtc) {
      throw ArgumentError.value(
        expiry,
        'expiry',
        'The expiry date must be a Utc DateTime.',
      );
    }
  }

  factory AccessToken.fromJson(Map<String, dynamic> json) => AccessToken(
    json['type'] as String,
    json['data'] as String,
    DateTime.parse(json['expiry'] as String),
  );

  bool get hasExpired => DateTime.now().toUtc().isAfter(expiry);

  @override
  String toString() => 'AccessToken(type=$type, data=$data, expiry=$expiry)';

  Map<String, dynamic> toJson() => <String, dynamic>{
    'type': type,
    'data': data,
    'expiry': expiry.toIso8601String(),
  };
}