Struggling with Automating Web Login using Puppeteer

Other Questions Puppeteer
1

I’m attempting to automate a login process on a website using Puppeteer but encountering odd errors. I want to mimic user actions by closing modal dialogs, entering my credentials, and then fetching content from a specific div. My process involves navigating to a login page, interacting with form elements, and finally retrieving a piece of text. Below is a revised code example that shows a slightly different approach:

const puppeteer = require('puppeteer');

(async () => {
  const browserInstance = await puppeteer.launch({ headless: false });
  const loginPage = await browserInstance.newPage();
  await loginPage.goto('https://example.com/login', { timeout: 120000, waitUntil: 'networkidle2' });
  await loginPage.click('#closeModal');
  await loginPage.type('#usernameField', 'user123');
  await loginPage.type('#passwordField', 'securePass');
  await loginPage.click('#submitLogin');
  await loginPage.waitForSelector('.profileName');
  const profileName = await loginPage.$eval('.profileName', el => el.textContent);
  console.log(profileName);
  await browserInstance.close();
})();
2

hey stella, try adding a delay after closing the modal before typing. i found that when the site lags, actions trigger too fast. also verify if the element selectors match exactly the page elements. hope this helps!

3

In my own experience, I discovered that timing is crucial when dealing with dynamic content on login pages. I faced a similar issue where device performance affected how fast elements were available, so I ended up using explicit waitForSelector calls even for pop-ups like modals. It was helpful to monitor network conditions to ensure that all Ajax requests completed before interacting with the form elements. Additionally, double-checking the asynchronous actions helped me avoid race conditions. Adjusting these elements allowed me to automate the login process reliably.

4

I encountered similar troubles when automating a login with Puppeteer. In my case, adding a brief wait after handling the modal dramatically improved the reliability. I also verified selectors more thoroughly using the browser’s inspector. I found that mixing network Idle waits with explicit element waits helps mitigate unexpected timing issues. Moreover, incorporating try/catch blocks provided better error diagnostics, helping pinpoint subtle issues with element availability. This systematic approach resolved errors relating to asynchronous actions in my automation script.

5

hey, i ran into similar hiccups. try using page.evaluaate to check if the DOM is totally updated before clicking. sometimes it’s a timing thing or an outdated selector that cause issues. small delays can make a big differnce.

6

I had a similar time automating web logins with Puppeteer. One thing that helped me was to use waitForFunction to check that dynamic elements had fully rendered before proceeding. I discovered that sometimes the login redirection didn’t fire immediately after clicking the submit button, and waiting for network idle state wasn’t enough. I also noticed that on some pages, the modal removed itself if left for too long, so triggering the closure in a more controlled manner proved beneficial. Adjusting these elements ensured a smoother execution overall.