Luna Goodnight says to Happy Web Developer https://simonhsu.blog/2017/04/06/%E9%80%8F%E9%81%8E-imgur-api-%E5%8F%8A-google-cloud-functions-%E6%9E%B6%E6%A7%8B%E8%B6%85%E7%B0%A1%E6%98%93-line-%E5%9B%9E%E5%9C%96%E6%A9%9F%E5%99%A8%E4%BA%BA-%E9%80%A3%E5%9C%96%E7%89%87%E6%B5%81/