Playwright & playwright-go

Playwright enables reliable end-to-end testing for modern web apps.

• playwright.dev (docs)
• GitHub: microsoft/playwright
• Twitter: @playwrightweb

playwright-go is a Go library to automate Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast.

• GitHub: mxschmitt/playwright-go
• Twitter: @maxibanki

Try Playwright: Getting started with node.js

Visit the playwright getting started documentation to try it out with JavaScript. Here is what your first script might look like:

const { webkit } = require('playwright');

(async () => {
  const browser = await webkit.launch();
  const page = await browser.newPage();
  await page.goto('http://whatsmyuseragent.org/');
  await page.screenshot({ path: `example.png` });
  await browser.close();
})();

Try playwright-go

playwright-go has some excellent examples that include: Downloading files, End-To-End testing a website, Executing JavaScript in the browser, Emulate mobile and geolocation, Parallel scraping using a WaitGroup, Rendering a PDF of a website, Scraping HackerNews, Take a screenshot, and Record a video.

This is the first example, Scraping HackerNews:

package main

import (
	"fmt"
	"log"

	"github.com/mxschmitt/playwright-go"
)

func main() {
	pw, err := playwright.Run()
	if err != nil {
		log.Fatalf("could not start playwright: %v", err)
	}
	browser, err := pw.Chromium.Launch()
	if err != nil {
		log.Fatalf("could not launch browser: %v", err)
	}
	page, err := browser.NewPage()
	if err != nil {
		log.Fatalf("could not create page: %v", err)
	}
	if _, err = page.Goto("https://news.ycombinator.com"); err != nil {
		log.Fatalf("could not goto: %v", err)
	}
	entries, err := page.QuerySelectorAll(".athing")
	if err != nil {
		log.Fatalf("could not get entries: %v", err)
	}
	for i, entry := range entries {
		titleElement, err := entry.QuerySelector("td.title > a")
		if err != nil {
			log.Fatalf("could not get title element: %v", err)
		}
		title, err := titleElement.TextContent()
		if err != nil {
			log.Fatalf("could not get text content: %v", err)
		}
		fmt.Printf("%d: %s\n", i+1, title)
	}
	if err = browser.Close(); err != nil {
		log.Fatalf("could not close browser: %v", err)
	}
	if err = pw.Stop(); err != nil {
		log.Fatalf("could not stop Playwright: %v", err)
	}
}

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