public async Task SeedAsync() { await _context.Database.MigrateAsync().ConfigureAwait(false); if (!await _context.Users.AnyAsync()) { const string managerRoleName = "manager"; const string userRoleName = "user"; await _roleManager.CreateAsync(new ApplicationRole() { Name = managerRoleName }); await _roleManager.CreateAsync(new ApplicationRole() { Name = userRoleName }); ApplicationUsers manager = new ApplicationUsers() { UserName = "******", FullName = "manager" }; ApplicationUsers user = new ApplicationUsers() { UserName = "******", FullName = "user" }; Customer customer = new Customer() { Name = userRoleName, Code = "0101010", Address = "home", User = user }; await _userManager.CreateAsync(manager, "123123"); await _userManager.CreateAsync(user, "123123"); var managerInData = await _userManager.FindByNameAsync(manager.UserName); var userInData = await _userManager.FindByNameAsync(user.UserName); try { await _userManager.AddToRoleAsync(managerInData, managerRoleName); await _userManager.AddToRoleAsync(userInData, userRoleName); await _context.AddAsync(customer); await _context.SaveChangesAsync(); } catch { throw; } } }