Reorder attribute application in HttpChain

The attribute application code was moved below the Metadata and ResourceType definitions in HttpChain.cs. This modification ensures the Metadata and ResourceType are defined. chain.Metadata.Produces(..) calls within new Marten attributes will not longer break startup

src/Http/Wolverine.Http/HttpChain.cs

@@ -63,15 +63,6 @@ public HttpChain(MethodCall method, HttpGraph parent)
 
         DisplayName = Method.ToString();
 
-        if (method.Method.TryGetAttribute<WolverineHttpMethodAttribute>(out var att))
-        {
-            MapToRoute(att.HttpMethod, att.Template, att.Order);
-            if (att.Name.IsNotEmpty())
-            {
-                DisplayName = att.Name;
-            }
-        }
-
         if (tryFindResourceType(method, out var responseType))
         {
             NoContent = false;
@@ -82,8 +73,17 @@ public HttpChain(MethodCall method, HttpGraph parent)
             NoContent = true;
             ResourceType = typeof(void);
         }
-
+        
         Metadata = new RouteHandlerBuilder(new[] { this });
+
+        if (method.Method.TryGetAttribute<WolverineHttpMethodAttribute>(out var att))
+        {
+            MapToRoute(att.HttpMethod, att.Template, att.Order);
+            if (att.Name.IsNotEmpty())
+            {
+                DisplayName = att.Name;
+            }
+        }
 
         // Apply attributes and the Configure() method if that exists too
         applyAttributesAndConfigureMethods(_parent.Rules, _parent.Container);