//POST: desbanir um user public void PostBanUser(SalaIdUsernameModel model) { using (var context = new ApplicationDbContext()) { SalaAccess sala = new SalaAccess(); string userId = RequestContext.Principal.Identity.GetUserId(); //id de quem realizou o pedido var userStore = new UserStore <ApplicationUser>(context); var userManager = new UserManager <ApplicationUser>(userStore); string idUser = userManager.FindByName(model.Username).Id; //id do user a desbanir sala.DesbanirUser(model.SalaId, userId, idUser); } }