using DAL.Database.Models; namespace DAL.Database.Service; public class UserService { private readonly List _users = new() { new User { Username = "Firefox", Password = "Firefox", Colour = "red" }, new User { Username = "Chrome", Password = "Chrome", Colour = "blue" } }; public async Task Login(string username, string password) { return await Task.Run(() => _users.FirstOrDefault(x => x.Username == username && x.Password == password)); } }