In my project, I have a web form intended for registering a developer application that involves a two-step process.
Step 1: I need to input the application details and click a button to generate an Application ID, which subsequently opens in a separate tab.
Step 2: In this new tab, I require the Application ID shown on that page. After retrieving it, I want to close that tab and return to the original page to input the retrieved Application ID before submitting the form.
I am already familiar with the initial steps of opening the first page and triggering the button that opens the second tab; however, I need guidance on how to access the second page (the new tab) and retrieve the Application ID from it.
Code Example:
const puppeteer = require('puppeteer');
(async () => {
const browserInstance = await puppeteer.launch({headless: false, executablePath: '/Applications/Google Chrome.app'});
const newPage = await browserInstance.newPage();
// Navigate to the registration page
await newPage.goto('https://register.example.com/new', {waitUntil: 'networkidle'});
// Fill in the form details
const applicationForm = await newPage.$('new-app-form');
await newPage.focus('#input-appName');
await newPage.type('Enter your app name');
await newPage.focus('#input-appDescription');
await newPage.type('Provide a brief description of your app');
await newPage.click('.get-appId'); // This opens a new tab for Page 2
// Managing Page 2
// Retrieve Application ID from the second tab
// Close second tab afterwards
// Return to Step 1
await newPage.focus('#input-appId');
await newPage.type(retrievedAppId);
// Submit the application form
await applicationForm.evaluate(form => form.submit());
browserInstance.close();
})();
Here's how you can handle multiple tabs in Puppeteer and retrieve the Application ID:
const puppeteer = require('puppeteer');
(async () => {
const browserInstance = await puppeteer.launch({headless: false});
const newPage = await browserInstance.newPage();
await newPage.goto('https://register.example.com/new', {waitUntil: 'networkidle2'});
// Fill and submit the form
await newPage.type('#input-appName', 'Enter your app name');
await newPage.type('#input-appDescription', 'Provide a brief description of your app');
await newPage.click('.get-appId');
// Wait for the new tab to open
const pages = await browserInstance.pages();
const secondPage = pages[pages.length - 1];
await secondPage.waitForSelector('#appId'); // Wait for the ID element
const appId = await secondPage.$eval('#appId', el => el.textContent);
await secondPage.close();
// Return to the first tab
await newPage.bringToFront();
await newPage.type('#input-appId', appId);
await newPage.$eval('form', form => form.submit());
await browserInstance.close();
})();
This script waits for and retrieves the Application ID from the second tab, closes it, and then returns to the first tab to finish the form submission.
To manage multiple tabs effectively in Puppeteer, try using events for detecting new pages and navigating effectively:
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch({ headless: false });
const page = await browser.newPage();
// Open the original page
await page.goto('https://register.example.com/new', { waitUntil: 'networkidle2' });
// Fill the form and trigger new tab
await page.type('#input-appName', 'App Name');
await page.type('#input-appDescription', 'App description');
await page.click('.get-appId');
// Handle new tab
const [newPage] = await Promise.all([
browser.waitForEvent('targetcreated').then(target => target.page()),
page.click('.get-appId'),
]);
// Retrieve Application ID
await newPage.waitForSelector('#appId');
const appId = await newPage.$eval('#appId', el => el.textContent.trim());
// Close second tab and return
await newPage.close();
await page.bringToFront();
await page.type('#input-appId', appId);
await page.$eval('form', form => form.submit());
await browser.close();
})();
This script effectively manages tab handling with new page events for clarity.
To manage multiple tabs effectively in Puppeteer, you can leverage the browser.pages() method to handle the second page where your Application ID appears. Here’s an alternative approach to guide you through managing tabs:
const puppeteer = require('puppeteer');
(async () => {
const browserInstance = await puppeteer.launch({ headless: false });
const page = await browserInstance.newPage();
// Navigate to the initial page
await page.goto('https://register.example.com/new', { waitUntil: 'networkidle2' });
// Fill out the form
await page.type('#input-appName', 'Enter your app name');
await page.type('#input-appDescription', 'Provide a brief description of your app');
await page.click('.get-appId');
// Wait for the new tab
await browserInstance.waitForTarget(target => target.opener() === page.target());
const pages = await browserInstance.pages();
const secondPage = pages.find(p => p.url() !== 'about:blank');
// Ensure the intended page and retrieve the Application ID
await secondPage.bringToFront();
await secondPage.waitForSelector('#appId');
const appId = await secondPage.$eval('#appId', el => el.textContent.trim());
// Close the second tab and return to the first
await secondPage.close();
// Focus back on the original page
await page.bringToFront();
await page.type('#input-appId', appId);
// Finally, submit the form
await page.$eval('form', form => form.submit());
await browserInstance.close();
})();
This code snippet utilizes browserInstance.waitForTarget to ensure the second tab is indeed opened by the action taken on the first page. It waits for the selector that contains your Application ID, retrieves it, then efficiently closes the second tab and returns focus to the initial page. By using pages.find(p => p.url() !== 'about:blank'), we ensure to manage the correct tab opened by the application.
You can efficiently manage multiple tabs in Puppeteer by using the browser.pages() method to navigate between them. Here's a streamlined way to handle your situation using Puppeteer:
const puppeteer = require('puppeteer');
(async () => {
const browserInstance = await puppeteer.launch({ headless: false });
const page = await browserInstance.newPage();
// Navigate to the initial page
await page.goto('https://register.example.com/new', { waitUntil: 'networkidle2' });
// Fill out the form
await page.type('#input-appName', 'Enter your app name');
await page.type('#input-appDescription', 'Provide a brief description of your app');
await page.click('.get-appId');
// Wait for the new tab
const [_, newTab] = await Promise.all([
page.waitForEvent('popup'),
page.click('.get-appId'),
]);
// Retrieve the Application ID
await newTab.waitForSelector('#appId');
const appId = await newTab.$eval('#appId', el => el.textContent.trim());
// Close the new tab and return to the first tab
await newTab.close();
// Focus back on the original page
await page.bringToFront();
await page.type('#input-appId', appId);
// Submit the form
await page.evaluate(() => document.querySelector('form').submit());
await browserInstance.close();
})();
This approach involves waiting for the popup event to ensure the new tab opens effectively, retrieves the Application ID, and then closes it before focusing back on the initial page to complete the process. By using these methods, you streamline the task with minimal complexity, ensuring efficiency and clarity in your automation script.
To manage multiple tabs effectively in Puppeteer, you can use the popup event and browser.pages() method to handle the scenario where your application requires retrieving an Application ID from a newly opened tab. Here is a method that focuses on keeping the script concise and precise:
const puppeteer = require('puppeteer');
(async () => {
const browserInstance = await puppeteer.launch({ headless: false });
const page = await browserInstance.newPage();
// Step 1: Navigate to the registration page
await page.goto('https://register.example.com/new', { waitUntil: 'networkidle2' });
// Fill in the form details
await page.type('#input-appName', 'Enter your app name');
await page.type('#input-appDescription', 'Provide a brief description of your app');
await page.click('.get-appId'); // This triggers opening a new tab
// Step 2: Handle the new tab
const pages = await browserInstance.pages();
const newTab = pages.find(p => p !== page && p.url() !== 'about:blank');
// Ensure the new tab is ready to be interacted with
await newTab.bringToFront();
await newTab.waitForSelector('#appId');
const appId = await newTab.$eval('#appId', el => el.textContent.trim());
// Close the second tab and return to the first
await newTab.close();
await page.bringToFront();
// Enter the Application ID back into the original form
await page.type('#input-appId', appId);
// Submit the application form
await page.$eval('form', form => form.submit());
await browserInstance.close();
})();
This approach ensures that after clicking the button to open a new tab, you successfully retrieve the Application ID, close the tab, and continue with filling in the form on the original page. Using find ensures the correct tab is identified even when multiple tabs are present.