Update user routing, added user authorization with JWT cookie management

lib/server_functions/dataAccessLayer.ts

@@ -0,0 +1,23 @@
+import { cookies } from "next/headers";
+import { cache } from "react";
+
+import "server-only";
+import { getCurrentUser } from "../api/helpers/users";
+import { User } from "../api/types";
+
+export const verifySession = cache(async () => {
+  const cookie = (await cookies()).get("access_token")?.value;
+  if (!cookie) {
+    return { isAuthed: false };
+  }
+  const response = await getCurrentUser();
+  if (response.status == 401) {
+    return { isAuthed: false };
+  }
+  const user = (await response.json()) as User;
+  return {
+    isAuthed: true,
+    surface_auth_level: user.authority,
+    username: user.username,
+  };
+});