class Token { String accessToken; String refreshToken; String tokenType; int expiresIn; String scope; Token(this.accessToken, this.refreshToken, this.tokenType, this.expiresIn, this.scope); factory Token.fromJsonMap(Map json) { return Token( json['access_token'] ?? "", json['refresh_token'] ?? "", json['token_type'] ?? "", json['expires_in'] ?? 0, json['scope'] ?? "", ); } Map toJson() { final Map data = {}; data['access_token'] = accessToken; data['refresh_token'] = refreshToken; data['token_type'] = tokenType; data['expires_in'] = expiresIn; data['scope'] = scope; return data; } }