public IHttpActionResult Put([FromBody] UpdateValueDTO update)
        {
            if (!this.valuesService.Update(update))
            {
                return(this.BadRequest("Value was not updated"));
            }

            return(this.Ok(203));
        }
        public bool Update(UpdateValueDTO update)
        {
            if (this.repository.Count == 0 ||
                this.repository.Count <= update.AtIndex ||
                update.AtIndex < 0)
            {
                return(false);
            }

            this.repository[update.AtIndex] = update.Value;

            return(true);
        }