programming like a modern artist

login.js

;(async function() {
  // puppeteer boilerplate code
  const browser = await puppeteer.launch({
    args: ['--no-sandbox', '--disable-setuid-sandbox'],
    // notice the small device size
    defaultViewport: {
      width: 375,
      height: 812
    }
  })
  const page = await browser.newPage()
  
  // use iPhone UA
  page.setUserAgent(
    'Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1'
  )
  
  // Do login
  // this is actually in a separate file but I have dumped it here for demo 
  
  console.log('logging in')
  await page.goto('https://www.instagram.com/accounts/login/')

  await page.waitForSelector('form')
  await page.focus('input[name=username]')
  await page.keyboard.type(process.env.INSTA_ACCOUNT)
  await page.focus('input[name=password]')
  await page.keyboard.type(process.env.INSTA_PASSWORD)

  console.log('submit form')
  await page.keyboard.press('Enter')
  await page.waitForNavigation()
  
  try {
    await page.click('main button')
    await page.waitForNavigation()
  } catch (error) {
    console.log('no need to store login credentials')
  }
)())