chrome-pool

chrome-pool

Headless chrome tabs manage pool, concept come from database connection pool for reuse chrome tab improve performance.

Use

1. install from npm by npm i chrome-pool

2. start ChromePool:

const ChromePool = require('chrome-pool');

const chromePoll = await ChromePool.new();
await chromePoll.destroyPoll();

await ChromePool.new() will make a new ChromePool and start a new chrome. A ChromePool means a chrome.

static method new() support options:

• maxTab: {number} max tab to render pages, default is no limit.

• port: {number} chrome debug port, default is random a free port.

• protocols: {array} require chrome devtool protocol to be enable before use. e.g ['Network','Log'].

await chromePoll.destroyPoll() can release all resource used by this pool, kill chrome.

1. require a tab to use:

// require a free tab from pool to use
const { tabId,protocol } = await chromeTabsPoll.require();
// tabId
const { Page,Target,Network,...} = protocol;

await chromeTabsPoll.require() will return a object with prop:

• tabId: chrome tab id.

• protocol: chrome remote control protocol.

1. use protocol to control tab:

const { Page,Target,Network,...} = protocol;

protocol detail use see chrome-devtools-protocol doc.

1. after use a tab release it to pool:

await chromeTabsPoll.release(tabId);

see test for more use case.

Dependencies

1. Chrome 59+ should install on you system
2. Nodejs 7+

Friends

• chrome-render general server render base on chrome.
• koa-chrome-render chrome-render middleware for koa
• koa-seo koa SEO middleware