F1Manager-Calc/pages/api/report_vals.js

// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
import {databasePromise} from "../../libs/cloud/mongodb";

export default async (req, res) => {
  let db = await databasePromise;

  const { uid, track, values } = req.body;
  await db.collection('values').updateOne(
    { track },
    {
      $inc: { [`feedback_cnt`]: 1 },
      $push: { [`values`]: {uid, track, values} },
    },
    { upsert: true },
  );
  res.status(200).json({status: "ok"});
};