BunniesCraft.Services.Controllers.AirCraftsController.GetById C# (CSharp) Метод

        public IHttpActionResult GetById(int id)
        {
            var airCraft = this.data.AirCrafts.All().FirstOrDefault(a=>a.Id == id);
            if (airCraft == null)
            {
                return BadRequest("AirCraft does not exists - invalid ID");
            }
            return Ok(airCraft);
        }