How can I extract data from a paginated table using Puppeteer?Antek N
The Puppeteer API method to retrieve the response body of a network request isresponse.text()
orresponse.buffer()
. Here's a detailed explanation:
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. Retrieving the response body usingresponse.text()
orresponse.buffer()
:
To retrieve the response body of a network request, you can use either theresponse.text()
orresponse.buffer()
method, depending on the type of data you expect.
- Usingresponse.text()
:
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page.on('response', async (response) => { const responseBody = await response.text(); console.log('Response body:', responseBody); }); await page.goto('https://example.com');
This code sets up an event listener usingpage.on('response')
to capture network responses. When a response is received, theresponse.text()
method is called to retrieve the response body as text. The response body is then logged to the console.
- Usingresponse.buffer()
:
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page.on('response', async (response) => { const responseBody = await response.buffer(); console.log('Response body:', responseBody.toString()); }); await page.goto('https://example.com');
This code is similar to the previous example, but it usesresponse.buffer()
instead ofresponse.text()
to retrieve the response body as a buffer. The buffer is then converted to a string usingtoString()
before logging it to the console.
By utilizing eitherresponse.text()
orresponse.buffer()
, you can retrieve the response body of a network request in Puppeteer. These methods allow you to access and process the raw data of the response, whether it's text-based or binary, such as HTML, JSON, images, or other file types.
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