Here is the code Here is the code on 'api/auth/[[...path]]':

import type { Request, Response } from 'express';
import type { NextApiRequest, NextApiResponse } from 'next';
import NextCors from 'nextjs-cors';
import supertokens from 'supertokens-node';
import { middleware } from 'supertokens-node/framework/express';
import { superTokensNextWrapper } from 'supertokens-node/nextjs';

import { appInfo } from '../../../config/appInfo';
import { backendConfig } from '../../../config/backendConfig';

supertokens.init(backendConfig());

export default async function superTokens(
  req: NextApiRequest & Request,
  res: NextApiResponse & Response
) {
  // NOTE: We need CORS only if we are querying the APIs from a different origin
  await NextCors(req, res, {
    methods: ['GET', 'HEAD', 'PUT', 'PATCH', 'POST', 'DELETE'],
    origin: appInfo.websiteDomain,
    credentials: true,
    allowedHeaders: ['content-type', ...supertokens.getAllCORSHeaders()],
  });

  await superTokensNextWrapper(
    async (next) => {
      // This is needed for production deployments with Vercel
      res.setHeader(
        'Cache-Control',
        'no-cache, no-store, max-age=0, must-revalidate'
      );
      await middleware()(req, res, next);
    },
    req,
    res
  );
  if (!res.writableEnded) {
    res.status(404).send('Not found');
  }
}