public async Task <IActionResult> Update(int id, [FromBody] CitaCreateDTO model)
        {
            var result = await _repository.GetByIdAsync(id);

            if (result == null)
            {
                return(NotFound($"La Cita con el id {id} no existe"));
            }

            await _repository.UpdateAsync(Mapper.Map <Cita>(model));

            return(NoContent());
        }
        public async Task <IActionResult> Create([FromBody] CitaCreateDTO model)
        {
            var result = await _repository.AddAsync(Mapper.Map <Cita>(model));

            return(CreatedAtRoute("GetCita", new { id = result.Id }, result));
        }