Define DefaultNodeHostingModel in one common place so it can be changed easily

samples/misc/LatencyTest/Program.cs

@@ -8,11 +8,11 @@ namespace ConsoleApplication
 {
     // This project is a micro-benchmark for .NET->Node RPC via NodeServices. It doesn't reflect
     // real-world usage patterns (you're not likely to make hundreds of sequential calls like this),
-    // but is a starting point for comparing the overhead of different hosting models and transports. 
+    // but is a starting point for comparing the overhead of different hosting models and transports.
     public class Program
     {
         public static void Main(string[] args) {
-            using (var nodeServices = CreateNodeServices(NodeHostingModel.Http)) {                
+            using (var nodeServices = CreateNodeServices(Configuration.DefaultNodeHostingModel)) {
                 MeasureLatency(nodeServices).Wait();
             }
         }
@@ -21,7 +21,7 @@ namespace ConsoleApplication
             // Ensure the connection is open, so we can measure per-request timings below
             var response = await nodeServices.Invoke<string>("latencyTest", "C#");
             Console.WriteLine(response);
-            
+
             // Now perform a series of requests, capturing the time taken
             const int requestCount = 100;
             var watch = Stopwatch.StartNew();

src/Microsoft.AspNetCore.NodeServices/Configuration.cs

@@ -6,11 +6,12 @@ namespace Microsoft.AspNetCore.NodeServices
 {
     public static class Configuration
     {
-        private static readonly string[] DefaultWatchFileExtensions = {".js", ".jsx", ".ts", ".tsx", ".json", ".html"};
+        public const NodeHostingModel DefaultNodeHostingModel = NodeHostingModel.Http;
 
+        private static readonly string[] DefaultWatchFileExtensions = {".js", ".jsx", ".ts", ".tsx", ".json", ".html"};
         private static readonly NodeServicesOptions DefaultOptions = new NodeServicesOptions
         {
-            HostingModel = NodeHostingModel.Http,
+            HostingModel = DefaultNodeHostingModel,
             WatchFileExtensions = DefaultWatchFileExtensions
         };
 

src/Microsoft.AspNetCore.NodeServices/NodeServicesOptions.cs

@@ -4,7 +4,7 @@ namespace Microsoft.AspNetCore.NodeServices
     {
         public NodeServicesOptions()
         {
-            HostingModel = NodeHostingModel.Http;
+            HostingModel = Configuration.DefaultNodeHostingModel;
         }
 
         public NodeHostingModel HostingModel { get; set; }

src/Microsoft.AspNetCore.SpaServices/Prerendering/PrerenderTagHelper.cs

@@ -36,7 +36,7 @@ namespace Microsoft.AspNetCore.SpaServices.Prerendering
             {
                 _nodeServices = _fallbackNodeServices = Configuration.CreateNodeServices(new NodeServicesOptions
                 {
-                    HostingModel = NodeHostingModel.Http,
+                    HostingModel = Configuration.DefaultNodeHostingModel,
                     ProjectPath = _applicationBasePath
                 });
             }

src/Microsoft.AspNetCore.SpaServices/Webpack/WebpackDevMiddleware.cs

@@ -44,7 +44,7 @@ namespace Microsoft.AspNetCore.Builder
             var hostEnv = (IHostingEnvironment)appBuilder.ApplicationServices.GetService(typeof(IHostingEnvironment));
             var nodeServices = Configuration.CreateNodeServices(new NodeServicesOptions
             {
-                HostingModel = NodeHostingModel.Http,
+                HostingModel = Configuration.DefaultNodeHostingModel,
                 ProjectPath = hostEnv.ContentRootPath,
                 WatchFileExtensions = new string[] { } // Don't watch anything
             });