Reimplementation of changes for PR 964 (GH ticket ThreeMammals#360) for the current code base.

Author: mrclayman

src/Ocelot/Configuration/Builder/RouteBuilder.cs

@@ -5,76 +5,83 @@
 using Ocelot.Configuration.File;
 
 using Ocelot.Values;
-
-namespace Ocelot.Configuration.Builder
-{
-    public class RouteBuilder
-    {
-        private UpstreamPathTemplate _upstreamTemplatePattern;
-        private List<HttpMethod> _upstreamHttpMethod;
-        private string _upstreamHost;
-        private List<DownstreamRoute> _downstreamRoutes;
-        private List<AggregateRouteConfig> _downstreamRoutesConfig;
-        private string _aggregator;
-
-        public RouteBuilder()
-        {
-            _downstreamRoutes = new List<DownstreamRoute>();
-            _downstreamRoutesConfig = new List<AggregateRouteConfig>();
-        }
-
-        public RouteBuilder WithDownstreamRoute(DownstreamRoute value)
-        {
-            _downstreamRoutes.Add(value);
-            return this;
-        }
-
-        public RouteBuilder WithDownstreamRoutes(List<DownstreamRoute> value)
-        {
-            _downstreamRoutes = value;
-            return this;
-        }
-
-        public RouteBuilder WithUpstreamHost(string upstreamAddresses)
-        {
-            _upstreamHost = upstreamAddresses;
-            return this;
-        }
-
-        public RouteBuilder WithUpstreamPathTemplate(UpstreamPathTemplate input)
-        {
-            _upstreamTemplatePattern = input;
-            return this;
-        }
-
-        public RouteBuilder WithUpstreamHttpMethod(List<string> input)
-        {
-            _upstreamHttpMethod = (input.Count == 0) ? new List<HttpMethod>() : input.Select(x => new HttpMethod(x.Trim())).ToList();
-            return this;
-        }
-
-        public RouteBuilder WithAggregateRouteConfig(List<AggregateRouteConfig> aggregateRouteConfigs)
-        {
-            _downstreamRoutesConfig = aggregateRouteConfigs;
-            return this;
-        }
-
-        public RouteBuilder WithAggregator(string aggregator)
-        {
-            _aggregator = aggregator;
-            return this;
-        }
-
-        public Route Build()
-        {
-            return new Route(
-                _downstreamRoutes,
-                _downstreamRoutesConfig,
-                _upstreamHttpMethod,
-                _upstreamTemplatePattern,
-                _upstreamHost,
-                _aggregator
-                );
-        }
-    }
-}
+
+namespace Ocelot.Configuration.Builder
+{
+    public class RouteBuilder
+    {
+        private UpstreamPathTemplate _upstreamTemplatePattern;
+        private List<HttpMethod> _upstreamHttpMethod;
+        private string _upstreamHost;
+        private List<DownstreamRoute> _downstreamRoutes;
+        private List<AggregateRouteConfig> _downstreamRoutesConfig;
+        private string _aggregator;
+        private UpstreamHeaderRoutingOptions _upstreamHeaderRoutingOptions;
+
+        public RouteBuilder()
+        {
+            _downstreamRoutes = new List<DownstreamRoute>();
+            _downstreamRoutesConfig = new List<AggregateRouteConfig>();
+        }
+
+        public RouteBuilder WithDownstreamRoute(DownstreamRoute value)
+        {
+            _downstreamRoutes.Add(value);
+            return this;
+        }
+
+        public RouteBuilder WithDownstreamRoutes(List<DownstreamRoute> value)
+        {
+            _downstreamRoutes = value;
+            return this;
+        }
+
+        public RouteBuilder WithUpstreamHost(string upstreamAddresses)
+        {
+            _upstreamHost = upstreamAddresses;
+            return this;
+        }
+
+        public RouteBuilder WithUpstreamPathTemplate(UpstreamPathTemplate input)
+        {
+            _upstreamTemplatePattern = input;
+            return this;
+        }
+
+        public RouteBuilder WithUpstreamHttpMethod(List<string> input)
+        {
+            _upstreamHttpMethod = (input.Count == 0) ? new List<HttpMethod>() : input.Select(x => new HttpMethod(x.Trim())).ToList();
+            return this;
+        }
+
+        public RouteBuilder WithAggregateRouteConfig(List<AggregateRouteConfig> aggregateRouteConfigs)
+        {
+            _downstreamRoutesConfig = aggregateRouteConfigs;
+            return this;
+        }
+
+        public RouteBuilder WithAggregator(string aggregator)
+        {
+            _aggregator = aggregator;
+            return this;
+        }
+
+        public RouteBuilder WithUpstreamHeaderRoutingOptions(UpstreamHeaderRoutingOptions routingOptions)
+        {
+            _upstreamHeaderRoutingOptions = routingOptions;
+            return this;
+        }
+
+        public Route Build()
+        {
+            return new Route(
+                _downstreamRoutes,
+                _downstreamRoutesConfig,
+                _upstreamHttpMethod,
+                _upstreamTemplatePattern,
+                _upstreamHost,
+                _aggregator,
+                _upstreamHeaderRoutingOptions);
+        }
+    }
+}

src/Ocelot/Configuration/Creator/IUpstreamHeaderRoutingOptionsCreator.cs

@@ -0,0 +1,8 @@
+using Ocelot.Configuration.File;
+
+namespace Ocelot.Configuration.Creator;
+
+public interface IUpstreamHeaderRoutingOptionsCreator
+{
+    UpstreamHeaderRoutingOptions Create(FileUpstreamHeaderRoutingOptions options);
+}