1 files changed, 45 insertions, 0 deletions
diff --git a/Timeline/Routes/ApiRoutePrefixConvention.cs b/Timeline/Routes/ApiRoutePrefixConvention.cs
new file mode 100644
index 00000000..2653c2ca
--- /dev/null
+++ b/Timeline/Routes/ApiRoutePrefixConvention.cs
@@ -0,0 +1,45 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.ApplicationModels;
+using Microsoft.AspNetCore.Mvc.Routing;
+using System.Linq;
+
+namespace Timeline.Routes
+{
+    public static class MvcOptionsExtensions
+    {
+        public static void UseApiRoutePrefix(this MvcOptions opts, IRouteTemplateProvider routeAttribute)
+        {
+            opts.Conventions.Add(new ApiRoutePrefixConvention(routeAttribute));
+        }
+
+        public static void UseApiRoutePrefix(this MvcOptions opts, string prefix)
+        {
+            opts.UseApiRoutePrefix(new RouteAttribute(prefix));
+        }
+    }
+
+    public class ApiRoutePrefixConvention : IApplicationModelConvention
+    {
+        private readonly AttributeRouteModel _routePrefix;
+
+        public ApiRoutePrefixConvention(IRouteTemplateProvider route)
+        {
+            _routePrefix = new AttributeRouteModel(route);
+        }
+
+        public void Apply(ApplicationModel application)
+        {
+            foreach (var selector in application.Controllers.Where(c => c.RouteValues.TryGetValue("area", out var value) && value == "api").SelectMany(c => c.Selectors))
+            {
+                if (selector.AttributeRouteModel != null)
+                {
+                    selector.AttributeRouteModel = AttributeRouteModel.CombineAttributeRouteModel(_routePrefix, selector.AttributeRouteModel);
+                }
+                else
+                {
+                    selector.AttributeRouteModel = _routePrefix;
+                }
+            }
+        }
+    }
+}