i am making a post app where user like and dislikes post,

and i have added functionality to view who has liked the post

in my post model i have used List for likedby field.

i am passing an string array to function for fetching user details..

this is my first attempt but not getting data

  Future<List<UserModel>> fetchUserWhoLiked(List<String> ids) async
  {
     final snapshot=await FirebaseFirestore.instance.collection('Users').where('Uid',whereIn: list).get();
     return snapshot.docs.map((e) => UserModel.fromJson(e)).toList();


   }

than i changed to basic level code which returns proper result but not happy with basic level coding

Future<List<UserModel>> fetchUserWhoLiked(List<String> ids) async
  {
    

    final List<UserModel> users=[];
    for(var id in ids)
      {
        final snapshot=await FirebaseFirestore.instance.collection('Users').doc(id).get();
        users.add(UserModel.fromJson(snapshot));
      }
    return users;
   }

and another thing is what if there is no field of uid in collection and want to fetch by documentId of collection..