refact

src/isnd/Authorisation/ValidApiKeyRequirement.cs

@@ -0,0 +1,10 @@
+using Microsoft.AspNetCore.Authorization;
+
+namespace isn.Authorization
+{
+    internal class ValidApiKeyRequirement : IAuthorizationRequirement
+    {
+    }
+
+
+}

src/isnd/Authorisation/ValidApiKeyRequirementHandler.cs

@@ -0,0 +1,13 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Authorization;
+
+namespace isn.Authorization
+{
+    internal class ValidApiKeyRequirementHandler : AuthorizationHandler<ValidApiKeyRequirement>
+    {
+        protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, ValidApiKeyRequirement requirement)
+        {
+            throw new System.NotImplementedException();
+        }
+    }
+}