HandleRequestsSynchronously (#496)

src/WireMock.Net/Owin/IWireMockMiddlewareOptions.cs

@@ -45,5 +45,7 @@ namespace WireMock.Owin
         bool? DisableJsonBodyParsing { get; set; }
 
         bool? DisableRequestBodyDecompressing { get; set; }
+
+        bool? HandleRequestsSynchronously { get; set; }
     }
 }

src/WireMock.Net/Owin/WireMockMiddleware.cs

@@ -25,6 +25,7 @@ namespace WireMock.Owin
 {
     internal class WireMockMiddleware : OwinMiddleware
     {
+        private readonly object _lock = new object();
         private static readonly Task CompletedTask = Task.FromResult(false);
         private readonly IWireMockMiddlewareOptions _options;
         private readonly IOwinRequestMapper _requestMapper;
@@ -65,7 +66,17 @@ namespace WireMock.Owin
         public Task Invoke(IContext ctx)
 #endif
         {
-            return InvokeInternal(ctx);
+            if (_options.HandleRequestsSynchronously.GetValueOrDefault(true))
+            {
+                lock (_lock)
+                {
+                    return InvokeInternal(ctx);
+                }
+            }
+            else
+            {
+                return InvokeInternal(ctx);
+            }
         }
 
         private async Task InvokeInternal(IContext ctx)

src/WireMock.Net/Owin/WireMockMiddlewareOptions.cs

@@ -51,5 +51,8 @@ namespace WireMock.Owin
 
         /// <inheritdoc cref="IWireMockMiddlewareOptions.DisableRequestBodyDecompressing"/>
         public bool? DisableRequestBodyDecompressing { get; set; }
+
+        /// <inheritdoc cref="IWireMockMiddlewareOptions.HandleRequestsSynchronously"/>
+        public bool? HandleRequestsSynchronously { get; set; }
     }
 }