typeofactiontype3.cs

[Route("Data")]
        [HttpGet]
        public HttpResponseMessage GetData()
        {
            
            var data = GetAllTrainings();
            HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, data);
            response.Headers.CacheControl = new CacheControlHeaderValue()
            {
                MaxAge = TimeSpan.FromMinutes(20)
            };
            return response;
        }