Keep getting `Auth event missing` when trying `supabase.auth.api.setAuthCookie(req, res)`

pages/api/auth/setServerSideCookies.js

import { supabase } from '@/utils/supabaseClient'

export default async function handler(req, res) {
  if (req.method !== 

) {
    return res
      .status(500)
      .json({ message: 

, status: 400 })
  }

  const { error } = await supabase.auth.api.setAuthCookie(req, res)
  console.log('IS ERROR ????: ', error)

  if (error) {
    return res
      .status(500)
      .json({ message: error.message, status: error.status })
  }
}