how do POST request in puppeteer?

Question

(async() => {
    const browser = await puppeteer.launch();
    const page = await browser.newPage();
    await page.goto('https://www.example.com/search');
    const data = await page.content();
    browser.close();
    res.send(data);
})();

I do this code for send get request. I don't understand how I should send post request?

Answer 1

Getting the "order" right can be a bit of a challenge. Documentation doesn't have that many examples... there are some juicy items in the repository in the example folder that you should definitely take a look at.

https://github.com/GoogleChrome/puppeteer/tree/master/examples

Here is the example; place the following into an async block:

    // Create browser instance, and give it a first tab
    const browser = await puppeteer.launch();
    const page = await browser.newPage();

    // Allows you to intercept a request; must appear before
    // your first page.goto()
    await page.setRequestInterception(true);

    // Request intercept handler... will be triggered with 
    // each page.goto() statement
    page.on('request', interceptedRequest => {

        // Here, is where you change the request method and 
        // add your post data
        var data = {
            'method': 'POST',
            'postData': 'paramFoo=valueBar&paramThis=valueThat'
        };

        // Request modified... finish sending! 
        interceptedRequest.continue(data);
    });

    // Navigate, trigger the intercept, and resolve the response
    const response = await page.goto('https://www.example.com/search');     
    const responseBody = await response.text();
    console.log(responseBody);

    // Close the browser - done! 
    await browser.close();