playwright-start

Start a long-running Playwright browser server via CLI.

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🙋‍♂️ Why?

When developing browser automation scripts, there's a lot of overhead in browser start up every time you test a change.

Start a long-running browser server in a separate window and connect to it from your script to iterate faster! The CLI also comes with a REPL to help you quickly test code.

🚀 Install

npm i -D playwright-start

🚦 Quick Setup

Start a browser server from a separate terminal session:
```
npx playwright-start
```

Connect from your code:

import {
    ChromiumBrowser,
    devices,
} from 'playwright'
import connect from 'playwright-start'

(async () => {
    const browser = await connect<ChromiumBrowser>()

    const context = await browser.newContext({
        // Emulate Pixel 2 XL
        ...devices['Pixel 2 XL']
    })

    const page = await context.newPage()

    // ...
})()

👨‍🏫 Examples

Starting a non-headless Chromium server

npx playwright-start --headless=false

Starting a Firefox or Webkit server

Firefox:

npx playwright-start firefox

Webkit:

npx playwright-start webkit

TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator))

Bug description

npx playwright-start failed, it saids:

/Users/xxx/.npm/_npx/7d976fb7a2568a32/node_modules/playwright-start/dist/playwright-start.js:49
    [parsed.options.headless] = parsed.options.headless;
                              ^

TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator))
    at /Users/xxx/.npm/_npx/7d976fb7a2568a32/node_modules/playwright-start/dist/playwright-start.js:49:31
    at Object.<anonymous> (/Users/xxx/.npm/_npx/7d976fb7a2568a32/node_modules/playwright-start/dist/playwright-start.js:64:3)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Module._load (node:internal/modules/cjs/loader:827:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (/Users/xxx/.npm/_npx/7d976fb7a2568a32/node_modules/playwright-start/bin/playwright-start.js:3:1)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)

Node.js v18.0.0

Reproduction steps

npx playwright-start

Environment

playwright-start version:

➜ ~ npx playwright-start --version
start-browser/1.1.0 darwin-x64 node-v18.0.0

Operating System:

Darwin xxx-MB0 21.5.0 Darwin Kernel Version 21.5.0: Tue Apr 26 21:08:22 PDT 2022; root:xnu-8020.121.3~4/RELEASE_X86_64 x86_64

Node version: v18.0.0
Package manager (npm/yarn/pnpm) and version: npx 8.6.0

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