public class WebApiController : ApiController

    {

​

        [HttpGet]

        public HeavyWorkResult GetSomething1()

        {

            var result = HeavyWork().GetAwaiter().GetResult();

​

            return result;

        }

​

        [HttpGet]

        public async Task<HeavyWorkResult> GetSomething2()

        {

            var result = await HeavyWork();

​

            return result;

        }

​

        private Task<HeavyWorkResult> HeavyWork()

        {

            /// some time consuming work here: DB querying etc.

        }

    }