public IActionResult Put(Guid id, [FromBody] UpserUserDto dto)
 {
     return(Ok(id));
 }
        public IActionResult Post([FromBody] UpserUserDto dto)
        {
            var newUser = _usersRepository.Upsert(new User(Guid.NewGuid(), dto.Fullname, dto.Email));

            return(CreatedAtRoute("user-details", new { id = newUser.Id }, newUser.Id));
        }