//PUT
        public void UpdateUser(User user)
        {
            using (WalkAboutDb dc = new WalkAboutDb())
            {
                var CurUser = (from a in dc.Users
                               where a.UsrId == user.UsrId
                               select a).FirstOrDefault();
                CurUser.Fname = user.Fname;
                CurUser.Lname = user.Lname;
                CurUser.CurrentCity = user.CurrentCity;
                dc.SaveChanges();

            }
        }
        // POST
        public void AddUser(User user)
        {
            using (WalkAboutDb dc = new WalkAboutDb())
            {
                User usr = new User {
                 UsrId = user.UsrId ,
                 Fname = user.Fname ,
                 Lname = user.Lname ,
                 CurrentCity = user.CurrentCity

                };

                dc.Users.Add(usr);
                dc.SaveChanges();

            }
        }