import 'package:cloud_firestore/cloud_firestore.dart'; import '../model/User.dart'; import '../main.dart'; class UserService { acceptFriend(User user, String idFriend) { MyApp.db.collection("users").doc(user.id).update({ "friends": FieldValue.arrayUnion([idFriend]) }); MyApp.db.collection("users").doc(idFriend).update({ "friends": FieldValue.arrayUnion([user.id]) }); } }