Set 204 No Content for void/Task.

Resolve #262

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/AbpMvcOptionsExtensions.cs

@@ -5,6 +5,7 @@ using Volo.Abp.AspNetCore.Mvc.Conventions;
 using Volo.Abp.AspNetCore.Mvc.ExceptionHandling;
 using Volo.Abp.AspNetCore.Mvc.Features;
 using Volo.Abp.AspNetCore.Mvc.ModelBinding;
+using Volo.Abp.AspNetCore.Mvc.Response;
 using Volo.Abp.AspNetCore.Mvc.Uow;
 using Volo.Abp.AspNetCore.Mvc.Validation;
 
@@ -28,6 +29,7 @@ namespace Volo.Abp.AspNetCore.Mvc
         private static void AddFilters(MvcOptions options)
         {
             options.Filters.AddService(typeof(AbpAuditActionFilter));
+            options.Filters.AddService(typeof(AbpNoContentActionFilter));
             options.Filters.AddService(typeof(AbpFeatureActionFilter));
             options.Filters.AddService(typeof(AbpValidationActionFilter));
             options.Filters.AddService(typeof(AbpUowActionFilter));

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Response/AbpNoContentActionFilter.cs

@@ -0,0 +1,31 @@
+using System.Net;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc.Abstractions;
+using Microsoft.AspNetCore.Mvc.Filters;
+using Volo.Abp.DependencyInjection;
+
+namespace Volo.Abp.AspNetCore.Mvc.Response
+{
+    public class AbpNoContentActionFilter : IAsyncActionFilter, ITransientDependency
+    {
+        public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
+        {
+            if (!context.ActionDescriptor.IsControllerAction())
+            {
+                await next();
+                return;
+            }
+
+            await next();
+
+            if (context.HttpContext.Response.StatusCode == (int)HttpStatusCode.OK)
+            {
+                var returnType = context.ActionDescriptor.GetReturnType();
+                if (returnType == typeof(Task) || returnType == typeof(void))
+                {
+                    context.HttpContext.Response.StatusCode = (int)HttpStatusCode.NoContent;
+                }
+            }
+        }
+    }
+}

framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/Response/NoContentTestController.cs

@@ -0,0 +1,51 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Volo.Abp.AspNetCore.Mvc.Response
+{
+    [Route("api/NoContent-Test")]
+    public class NoContentTestController : AbpController
+    {
+        [HttpGet]
+        [Route("TestMethod")]
+        public void TestMethod()
+        {
+        }
+
+        [HttpGet]
+        [Route("TestMethodWithReturn")]
+        public string TestMethodWithReturn()
+        {
+            return "TestReturn";
+        }
+
+        [HttpGet]
+        [Route("TestCustomHttpStatusCodeMethod")]
+        public void TestCustomHttpStatusCodeMethod()
+        {
+            Response.Redirect("/");
+        }
+
+        [HttpGet]
+        [Route("TestAsyncMethod")]
+        public async Task TestAsyncMethod()
+        {
+            await Task.CompletedTask;
+        }
+
+        [HttpGet]
+        [Route("TestAsyncMethodWithReturn")]
+        public async Task<string> TestAsyncMethodWithReturn()
+        {
+            return await Task.FromResult("TestReturn");
+        }
+
+        [HttpGet]
+        [Route("TestAsyncCustomHttpStatusCodeMethod")]
+        public async Task TestAsyncCustomHttpStatusCodeMethod()
+        {
+            Response.Redirect("/");
+            await Task.CompletedTask;
+        }
+    }
+}

framework/test/Volo.Abp.AspNetCore.Mvc.Tests/Volo/Abp/AspNetCore/Mvc/Response/NoContentTestController_Tests.cs

@@ -0,0 +1,58 @@
+using System.Net;
+using System.Threading.Tasks;
+using Shouldly;
+using Xunit;
+
+namespace Volo.Abp.AspNetCore.Mvc.Response
+{
+    public class NoContentTestController_Tests : AspNetCoreMvcTestBase
+    {
+        [Fact]
+        public async Task Should_Set_No_Content_For_Void_Action()
+        {
+            var result = await GetResponseAsync("/api/NoContent-Test/TestMethod", HttpStatusCode.NoContent)
+                .ConfigureAwait(false);
+            result.StatusCode.ShouldBe(HttpStatusCode.NoContent);
+        }
+
+        [Fact]
+        public async Task Should_Not_Set_No_Content_For_Not_Void_Action()
+        {
+            var result = await GetResponseAsync("/api/NoContent-Test/TestMethodWithReturn")
+                .ConfigureAwait(false);
+            result.StatusCode.ShouldBe(HttpStatusCode.OK);
+        }
+
+        [Fact]
+        public async Task Should_Not_Set_No_Content_For_Custom_Http_Status_Code_Action()
+        {
+            var result = await GetResponseAsync("/api/NoContent-Test/TestCustomHttpStatusCodeMethod", HttpStatusCode.Redirect)
+                .ConfigureAwait(false);
+            result.StatusCode.ShouldBe(HttpStatusCode.Redirect);
+        }
+
+        [Fact]
+        public async Task Should_Set_No_Content_For_Task_Action()
+        {
+            var result = await GetResponseAsync("/api/NoContent-Test/TestAsyncMethod", HttpStatusCode.NoContent)
+                .ConfigureAwait(false);
+            result.StatusCode.ShouldBe(HttpStatusCode.NoContent);
+        }
+
+        [Fact]
+        public async Task Should_Not_Set_No_Content_For_Not_Task_Action()
+        {
+            var result = await GetResponseAsync("/api/NoContent-Test/TestAsyncMethodWithReturn")
+                .ConfigureAwait(false);
+            result.StatusCode.ShouldBe(HttpStatusCode.OK);
+        }
+
+        [Fact]
+        public async Task Should_Not_Set_No_Content_For_Custom_Http_Status_Code_Async_Action()
+        {
+            var result = await GetResponseAsync("/api/NoContent-Test/TestAsyncCustomHttpStatusCodeMethod", HttpStatusCode.Redirect)
+                .ConfigureAwait(false);
+            result.StatusCode.ShouldBe(HttpStatusCode.Redirect);
+        }
+    }
+}