toJson method
Implementation
Map<String, dynamic> toJson() {
return {
'id': id,
'username': username,
'biography': bio,
'imageUrl': imageUrl,
'level': level.level,
'exp': level.exp,
'lives': lives,
'coins': coins,
'streakDays': streakDays.map((e) => e.toIso8601String()).toList(),
};
}