How do I handle AJAX requests in Puppeteer?Rashid D
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.
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const response = await page.waitForResponse((response) => { return response.url().includes('your-ajax-url'); });
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.
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const request = await page.waitForRequest((request) => { return request.url().includes('your-ajax-url');
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