Added global exception handler to catch unhandled exceptions from the base application.

modules/docs/app/Volo.DocsTestApp/DocsTestAppModule.cs

@@ -33,6 +33,7 @@ using Volo.Abp.VirtualFileSystem;
 using Volo.Docs;
 using Volo.Docs.Admin;
 using Volo.DocsTestApp.EntityFrameworkCore;
+using Volo.DocsTestApp.Utils;
 
 namespace Volo.DocsTestApp
 {
@@ -134,6 +135,7 @@ namespace Volo.DocsTestApp
             else
             {
                 app.UseStatusCodePagesWithReExecute("/error/{0}");
+                app.UseMiddleware<GlobalExceptionHandlerMiddleware>();
             }
 
             app.UseMvc(routes =>

modules/docs/app/Volo.DocsTestApp/Pages/Error.cshtml.cs

@@ -4,6 +4,7 @@ using System.Net;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Diagnostics;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
 using Serilog;
 using Volo.Abp.AspNetCore.Mvc.UI.RazorPages;
 using Volo.Abp.Domain.Entities;
@@ -24,7 +25,7 @@ namespace Volo.DocsTestApp.Pages
             var statusFeature = HttpContext.Features.Get<IStatusCodeReExecuteFeature>();
             if (statusFeature != null)
             {
-                Log.Warning("Handled {0} error for URL: {1}", statusCode, statusFeature.OriginalPath);
+                Logger.LogWarning("Handled {0} error for URL: {1}", statusCode, statusFeature.OriginalPath);
             }
 
             var exceptionHandlerPathFeature = HttpContext.Features.Get<IExceptionHandlerPathFeature>();

modules/docs/app/Volo.DocsTestApp/Utils/GlobalExceptionHandlerMiddleware.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Logging;
+using Volo.Abp.AspNetCore.Uow;
+
+namespace Volo.DocsTestApp.Utils
+{
+    public class GlobalExceptionHandlerMiddleware
+    {
+        private readonly RequestDelegate _next;
+        private readonly ILogger<AbpUnitOfWorkMiddleware> _logger;
+
+        public GlobalExceptionHandlerMiddleware(RequestDelegate next,  ILogger<AbpUnitOfWorkMiddleware> logger)
+        {
+            _logger = logger;
+            _next = next;
+        }
+
+        public async Task Invoke(HttpContext httpContext)
+        {
+            try
+            {
+                await _next(httpContext);
+            }
+            catch (Exception ex)
+            {
+                 _logger.LogError("Handled a global exception: " + ex.Message, ex);
+
+                httpContext.Response.Redirect("/");
+            }
+        }
+    }
+}