Issue with NodeJS async/await - accessing function parameter

Question

I am trying to do some scraping using a library and my code uses Node's async/await pattern.

I have defined a variable 'page' in function named 'sayhi' and I pass the same variable to function ex, I get error while running the code.

const puppeteer = require('puppeteer');

async function sayhi() {
  const browser = await puppeteer.launch({headless: false});
  const page = await browser.newPage();
  await page.goto('https://www.example.com/'); // 
  ex(page); //FAILS

  var frames2 = await newpage.frames(); // WORKS
}

function ex(newpage){
  var frames = await newpage.frames(); // FAILING
}

sayhi();

ex() needs to be made async

Arman Charan
– Arman Charan

2018-03-21 06:28:46 +00:00
Commented Mar 21, 2018 at 6:28 — Arman Charan
– Arman Charan, Commented Mar 21, 2018 at 6:28

CertainPerformance · Accepted Answer · 2018-03-21 06:28:39Z

1

You're using await in a function that isn't an async function. Try this instead:

async function ex(newpage) {

If you need frames2 to run only after ex is finished completely, you'll also want to await ex(page); in sayhi.

answered Mar 21, 2018 at 6:28

CertainPerformance

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1 Comment

geeky_monster Over a year ago

Thanks a ton. I did as suggested. Solved my problem.

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