lol

request.js

import querystring from 'querystring'

export default function request(url, params) {
  return new Promise((resolve, reject) => {
    const paramstring = querystring.stringify(params)
    const request = new XMLHttpRequest

    request.onreadystatechange = function () {
      if (request.readyState === XMLHttpRequest.DONE) {
        if (request.status == 200) {
          resolve(JSON.parse(request.responseText))
        }
        else {
          reject(request.status)
        }
      }

    }

    request.open('POST', url, true)
    request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded')
    request.send(params)
  })
}

usage.js

request("https://www.f-list.net/json/getApiTicket.php", { account, password })
  .then((data) => {
    console.log(data)
  })
  .catch((err) => {
    console.error('oops', err)
  })