puppeteer smartphone screenshot

    const devices = require('puppeteer/DeviceDescriptors');

    let fetch = require('node-fetch');
    let FormData = require('form-data');
    let fs = require('fs');
    let opener = require('opener');
    it('スマートフォン版のスクリーンショットを撮影', async function () {
      this.timeout(20000);
      await page.emulate(devices['iPhone 6']);
      await page.screenshot({
        path: 'iphone6.png',
        fullPage: true
      });
      // yabumiにアップロード
      const formData = new FormData();
      formData.append('imagedata', fs.createReadStream('iphone6.png'));
      await fetch('https://yabumi.cc/api/images.json', {
          method: 'POST',
          body: formData
        })
        .then(function (res) {
          return res.json();
        }).then(async function (json) {
          console.log(json);
          if (json.url) {
            await opener(json.url);
          }
          fs.unlinkSync('iphone6.png');
        });
    });
  });