toJson method
JSON으로 변환
Implementation
Map<String, dynamic> toJson() => {
'success': success,
'provider': provider.name,
if (user != null) 'user': user!.toJson(),
if (accessToken != null) 'accessToken': accessToken,
if (refreshToken != null) 'refreshToken': refreshToken,
if (idToken != null) 'idToken': idToken,
if (expiresAt != null) 'expiresAt': expiresAt!.toIso8601String(),
if (errorMessage != null) 'errorMessage': errorMessage,
if (errorCode != null) 'errorCode': errorCode,
if (errorHint != null) 'errorHint': errorHint,
};