Handling AJAX requests in Puppeteer involves using thepage.waitForResponse() orpage.waitForRequest() methods to wait for specific network requests to complete. Here's a detailed explanation of how to handle AJAX requests in Puppeteer:
1. Launching a new browser instance and creating a new page:
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const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
// Perform actions with the page here
// Close the browser
await browser.close();
})();
This code sets up a basic Puppeteer script. It launches a new headless browser instance and creates a new page to work with.
2. Handling AJAX requests withpage.waitForResponse():
Thepage.waitForResponse() method allows you to wait for a specific network response based on various criteria such as URL, status code, or response headers.
In this example,page.waitForResponse() is used to wait for a network response that matches the specified condition. The condition is defined using a callback function that checks if the response URL includes'your-ajax-url'. The method returns a response object that you can use for further processing or validation.
3. Handling AJAX requests withpage.waitForRequest():
If you want to wait for a specific network request to be initiated, you can use thepage.waitForRequest() method. Similar topage.waitForResponse(), you can define a condition to match the request based on URL, method, headers, etc.