Playwright 代理账号密码：按 context 设置

# pip install playwright   then   playwright install chromium
from playwright.sync_api import sync_playwright

proxy = {
    "server": "http://HOST:PORT",   # HTTP endpoint from My assets
    "username": "LOGIN",
    "password": "PASSWORD",
}

with sync_playwright() as p:
    browser = p.chromium.launch(proxy=proxy)   # every context in this browser uses it
    page = browser.new_page()
    page.goto("https://ipinfo.io/json")
    print(page.inner_text("body"))             # shows the proxy's exit IP
    browser.close()

# pip install playwright   then   playwright install chromium
import asyncio
from playwright.async_api import async_playwright

PROXIES = [  # one entry per IP, copied from My assets
    {"server": "http://HOST:PORT", "username": "LOGIN_1", "password": "PASSWORD_1"},
    {"server": "http://HOST:PORT", "username": "LOGIN_2", "password": "PASSWORD_2"},
]

async def check(browser, proxy):
    context = await browser.new_context(proxy=proxy)   # this context only
    try:
        page = await context.new_page()
        await page.goto("https://ipinfo.io/json")
        print(proxy["username"], await page.inner_text("body"))
    finally:
        await context.close()

async def main():
    async with async_playwright() as p:
        browser = await p.chromium.launch()            # no proxy on the browser itself
        await asyncio.gather(*(check(browser, x) for x in PROXIES))
        await browser.close()

asyncio.run(main())

// npm i playwright   then   npx playwright install chromium
import { chromium } from 'playwright'

const proxies = [ // one entry per IP, copied from My assets
  { server: 'http://HOST:PORT', username: 'LOGIN_1', password: 'PASSWORD_1' },
  { server: 'http://HOST:PORT', username: 'LOGIN_2', password: 'PASSWORD_2' },
]

const browser = await chromium.launch() // no proxy on the browser itself
await Promise.all(proxies.map(async (proxy) => {
  const context = await browser.newContext({ proxy }) // this context only
  try {
    const page = await context.newPage()
    await page.goto('https://ipinfo.io/json')
    console.log(proxy.username, await page.textContent('body'))
  } finally {
    await context.close()
  }
}))
await browser.close()

# HTTP endpoint (the one Chromium can log in to)
curl -x http://LOGIN:PASSWORD@HOST:PORT https://ipinfo.io/json

# SOCKS5 endpoint (works in curl, not in Chromium with a login)
curl -x socks5h://LOGIN:PASSWORD@HOST:PORT https://ipinfo.io/json