Sapper recaptcha siteverify

register.json.js

import axios from 'axios'

export async function post(req, res, next) {
  res.setHeader('Content-Type', 'application/json')
  
  let response;
  const secret = '<YOUR-SECRET-KEY>'
  const { captchaToken } = req.body
  const captchaResponse = await axios.post(`https://www.google.com/recaptcha/api/siteverify?secret=${secret}&response=${captchaToken}`)

  const { success, action, score } = captchaResponse.data

  if (success && action === '<ACTION>' && score >= 0.7) {
      response = captchaResponse.data
  }

  return await res.end(JSON.stringify(response))
}