How can i make playwright waits until a specific cookie appears (and then return it) in python?

Question

I'm making a python script that requests the user for their cookie through playwright webdriver

This is my dummy code

import asyncio
from playwright.async_api import async_playwright

async def main():
    async with async_playwright() as playwright:
        browser = await playwright.chromium.launch(headless=False)
        context = await browser.new_context()
        page = await context.new_page()
        await page.goto('https://example.com')
        print('Please log-in')
        while True:
            for i in (await context.cookies()):
                if i['name'] == 'account_cookie':
                    return i['value']
asyncio.run(main())

Answer 1

You could use wait_for_function:

await page.wait_for_function("document.cookie.includes('account_cookie')")