Added backend

gswi/Filters/CustomExceptionFilterAttribute.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Net;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+using NLog;
+using gswi.Model.Filters;
+
+namespace gswi.Filters
+{
+    public class CustomExceptionFilterAttribute : ExceptionFilterAttribute
+    {
+
+
+        private static Logger _logger = LogManager.GetCurrentClassLogger();
+
+        public CustomExceptionFilterAttribute() { }
+
+        public override void OnException(ExceptionContext context)
+        {
+            context.Result = CreateJsonErrorResult(context);
+            base.OnException(context);
+        }
+
+        public JsonResult CreateJsonErrorResult(ExceptionContext context)
+        {
+            JsonResult result = null;
+
+            // create jsonresult
+            var exception = context.Exception;
+            if (exception is ServiceException)
+            {
+                var bex = exception as ServiceException;
+                _logger.Error($"{bex.GetDetailedMessage()}");
+                var error = new ErrorDto(bex.ErrorCode, bex.GetMessage());
+                result = new JsonResult(error)
+                {
+                    StatusCode = (int)HttpStatusCode.BadRequest
+                };
+            }
+            else
+            {
+                var trackingId = Guid.NewGuid();
+                string userMsg = $"Tracking Id: {trackingId}";
+                _logger.Error(exception, userMsg);
+                var error = new ErrorDto($"Tracking Id: {trackingId}");
+                result = new JsonResult(error)
+                {
+                    StatusCode = (int)HttpStatusCode.InternalServerError
+                };
+            }
+            return result;
+        }
+
+    }
+}