fix billing problems

src/Billing/Startup.cs

@@ -10,6 +10,7 @@ using Bit.Core.Utilities;
 using Serilog.Events;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.DependencyInjection.Extensions;
+using Bit.Billing.Utilities;
 
 namespace Bit.Billing
 {
@@ -52,7 +53,10 @@ namespace Bit.Billing
             services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();
 
             // Mvc
-            services.AddMvc();
+            services.AddMvc(config =>
+            {
+                config.Filters.Add(new ExceptionHandlerFilterAttribute());
+            });
         }
 
         public void Configure(

src/Billing/Utilities/ExceptionHandlerFilterAttribute.cs

@@ -0,0 +1,22 @@
+using Microsoft.AspNetCore.Mvc.Filters;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Bit.Billing.Utilities
+{
+    public class ExceptionHandlerFilterAttribute : ExceptionFilterAttribute
+    {
+        public override void OnException(ExceptionContext context)
+        {
+            var exception = context.Exception;
+            if(exception == null)
+            {
+                // Should never happen.
+                return;
+            }
+
+            var logger = context.HttpContext.RequestServices.GetRequiredService<ILogger<ExceptionHandlerFilterAttribute>>();
+            logger.LogError(0, exception, exception.Message);
+        }
+    }
+}