server: handle route in seperate function

src/user.ts

···
     web: new WebDidDocumentResolver(),
   },
 });
+async function getRoute(
+  did: `did:${"plc" | "web"}:${string}`,
+  pds: string,
+  route: string
+): Promise<Response> {
+  return new Response("404 NOT FOUND: " + route, {
+    status: 404,
+  });
+}
 
 export default async function (
-  _req: Request,
+  req: Request,
   user:
     | { handle: `${string}.${string}` }
     | { did: `did:plc:${string}` | `did:web:${string}` }
···
       }
     );
 
-  pds;
-
-  return new Response(`Resolved: ${"handle" in user ? user.handle : user.did}
-
-handle: ${"handle" in user ? user.handle : (doc.alsoKnownAs?.filter((x) => x.startsWith("at://"))[0] ?? "N/A")}
-did: ${did}
-pds: ${pds}`);
+  return await getRoute(did, pds, new URL(req.url).pathname);
 }