🎭 Playwright client for Ruby

Docs | API

Getting Started

At this point, playwright-ruby-client doesn’t include the downloader of playwright driver, so we have to install playwright in advance.

npx playwright install

and then, set playwright_cli_executable_path: "npx playwright" at Playwright.create.

Prefer npm install instead of npx?

Actually npx playwright is a bit slow. We can also use npm install to setup.

Instead of npx playwright install:

npm install playwright
./node_modules/.bin/playwright install

And set playwright_cli_executable_path: './node_modules/.bin/playwright'

Prefer playwrighting without Node.js?

Instead of npm, you can also directly download playwright driver from playwright.azureedge.net/builds/. The URL can be easily detected from here

Capture a site

require 'playwright'

Playwright.create(playwright_cli_executable_path: 'npx playwright') do |playwright|
  playwright.chromium.launch(headless: false) do |browser|
    page = browser.new_page
    page.goto('https://github.com/YusukeIwaki')
    page.screenshot(path: './YusukeIwaki.png')
  end
end

Simple scraping

require 'playwright'

Playwright.create(playwright_cli_executable_path: 'npx playwright') do |playwright|
  playwright.chromium.launch(headless: false) do |browser|
    page = browser.new_page
    page.goto('https://github.com/')

    form = page.query_selector("form.js-site-search-form")
    search_input = form.query_selector("input.header-search-input")
    search_input.click
    page.keyboard.type("playwright")
    page.expect_navigation {
      page.keyboard.press("Enter")
    }

    list = page.query_selector("ul.repo-list")
    items = list.query_selector_all("div.f4")
    items.each do |item|
      title = item.eval_on_selector("a", "a =&gt; a.innerText")
      puts("==&gt; #{title}")
    end
  end
end

$ bundle exec ruby main.rb
==&gt; microsoft/playwright
==&gt; microsoft/playwright-python
==&gt; microsoft/playwright-cli
==&gt; checkly/headless-recorder
==&gt; microsoft/playwright-sharp
==&gt; playwright-community/jest-playwright
==&gt; microsoft/playwright-test
==&gt; mxschmitt/playwright-go
==&gt; microsoft/playwright-java
==&gt; MarketSquare/robotframework-browser

Android browser automation

require 'playwright'

Playwright.create(playwright_cli_executable_path: 'npx playwright') do |playwright|
  devices = playwright.android.devices
  unless devices.empty?
    device = devices.last
    begin
      puts "Model: #{device.model}"
      puts "Serial: #{device.serial}"
      puts device.shell('ls /system')

      device.launch_browser do |context|
        page = context.pages.first
        page.goto('https://github.com/YusukeIwaki')
        page.click('header button')
        page.click('input[name="q"]')
        page.keyboard.type('puppeteer')
        page.expect_navigation {
          page.keyboard.press('Enter')
        }
        page.screenshot(path: 'YusukeIwaki.android.png')
      end
    ensure
      device.close
    end
  end
end

android-browser

Android native automation

We have to download android-driver for Playwright in advance.

wget https://github.com/microsoft/playwright/raw/master/bin/android-driver-target.apk -O /path/to/playwright-driver/package/bin/android-driver-target.apk
wget https://github.com/microsoft/playwright/raw/master/bin/android-driver.apk -O /path/to/playwright-driver/package/bin/android-driver.apk

(If you downloaded Playwright via npm, replace /path/to/playwright-driver/package/ with ./node_modules/playwright/ above.)

require 'playwright'

Playwright.create(playwright_cli_executable_path: ENV['PLAYWRIGHT_CLI_EXECUTABLE_PATH']) do |playwright|
  devices = playwright.android.devices
  unless devices.empty?
    device = devices.last
    begin
      device.shell('input keyevent POWER')
      device.shell('input keyevent POWER')
      device.shell('input keyevent 82')
      sleep 1
      device.shell('cmd statusbar expand-notifications')

      # pp device.tree
      # pp device.info(res: 'com.android.systemui:id/clock')
      device.tap_on(res: 'com.android.systemui:id/clock')
    ensure
      device.close
    end
  end
end

Communicate with Playwright server

If your environment doesn’t accept installing browser or creating browser process, consider separating Ruby client and Playwright server.

structure

For launching Playwright server, just execute:

npx playwright install &amp;&amp; npx playwright run-server 8080

and we can connect to the server with the code like this:

Playwright.connect_to_playwright_server('ws://127.0.0.1:8080') do |playwright|
  playwright.chromium.launch do |browser|
    page = browser.new_page
    page.goto('https://github.com/YusukeIwaki')
    page.screenshot(path: './YusukeIwaki.png')
  end
end

When Playwright.connect_to_playwright_server is used, playwright_cli_executable_path is not required.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Playwright project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.

Modules

Classes