Firebase Functions Simple getUser Route

index.ts

import * as functions from "firebase-functions";
admin.initializeApp(functions.config().firebase);
// ...

exports.getUser = functions.https.onRequest((req, res) => {
  // ...
  // note, req.query.uid might be null! If we use a router, the function will never get matched unless the route is matched correctly
  const uid = req.query.uid;
  // ...
});