Ndtyjky

I'm trying to set up an AWS Lambda handler that involves using pyppeteer (the python-port of headless Chrome in node.js) to take a screenshot.

def getSavePath():

    path = "picture_{}.png".format(random.randint(100, 1000))

    loop = asyncio.get_event_loop()

    loop.run_until_complete(._screenshot(path))

    print("Done taking screenshot...")



    return path



async def _screenshot(path):

    browser = await launch()

    page = await browser.newPage()

    await page.goto(URL, {"waitUntil": "networkidle0"})



    textBox = await page.querySelector('[name="section"]')

    submitButton = await page.querySelector('#submit')

    canvas = await page.querySelector("#canvas")



    await textBox.click({"clickCount": 3});

    await textBox.type(self.wkt)

    await submitButton.click()



    await canvas.screenshot({'path': path})

    await browser.close()

When I run this locally, the screenshot gets taken and the path gets returned correctly.

When I run this on AWS Lambda, I'm getting:

    loop.run_until_complete(._screenshot(path))

  File "/var/task/asyncio/base_events.py", line 296, in run_until_complete

    future = tasks.async(future, loop=self)

  File "/var/task/asyncio/tasks.py", line 516, in async

    raise TypeError('A Future or coroutine is required')

TypeError: A Future or coroutine is required

/var/task/slash.py:50: RuntimeWarning: coroutine '_screenshot' was never awaited

Any thoughts on why this would work locally but not on Lambda?

I'm using Python version 3.6 both locally and on Lambda.