native-https-form-post.js

const ua = require('useragent-generator')
const querystring = require('querystring')
const https = require('https')

const userAgent = ua.chrome({
  version: '72.0.3626.121',
  os: 'Windows NT 10.0'
})

function post (url, formdata) {
  const data = querystring.stringify(formdata)
  return new Promise((resolve, reject) => {
    const req = https.request(url, {
      method: 'POST',
      headers: {
        'Content-Type': `application/x-www-form-urlencoded`,
        'User-Agent': userAgent,
        'Content-Length': Buffer.byteLength(data)
      }
    }, res => {
      res.setEncoding('utf8')
      let data = ''
      res.on('data', (chunk) => {
        data += chunk
      })
      res.on('error', err => {
        reject(err)
      })
      res.on('close', () => {
        resolve({
          data,
          headers: res.headers,
          status: res.statusCode,
          statusText: res.statusMessage
        })
      })
    })
    req.on('error', err => reject(err))
    req.write(data, err => {
      if (err) reject(err)
    })
    req.end()
  })
}
module.exports = post