puppeteer-cluster-connect v0.0.8

Puppeteer cluster Connect

Use Cluster.connect instead on Cluster.launch

Installation

Install using your favorite package manager:

npm install --save puppeteer # in case you don't already have it installed
npm install --save puppeteer-cluster-connect

Alternatively, use yarn:

yarn add puppeteer puppeteer-cluster-connect

Current support : one restart function

Array restart function is current in development

full document please go to :

puppeteer-cluster (use connect instead of launch and add restartFunction if you want restart endpoint after crash or error)

Usage

The following is a typical example of using puppeteer-cluster-connect. A cluster is created with 2 concurrent workers. Then a task is defined which includes going to the URL and taking a screenshot. We then queue three jobs and wait for the cluster to finish.

const { Cluster } = require("puppeteer-cluster-connect");
const puppeteer = require("puppeteer-core"); // use puppeteer-core instead of puppeteer
const puppeteerRemote = require("puppeteer");
// restart function
const ws = async () => {
    console.log("create browser");
    const browser = await puppeteerRemote.launch({
        headless: false,
        defaultViewport: null,
        args: [
            "--start-maximized",
            // add other if you want
        ],
        executablePath:
            "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe",
    });

    // Store the endpoint to be able to reconnect to Chromium
    const browserWSEndpoint = browser.wsEndpoint();
    console.log(browserWSEndpoint);
    // Disconnect puppeteer from Chromium
    browser.disconnect();
    return browserWSEndpoint;
};
(async () => {
    try {
        const cluster = await Cluster.connect({
            concurrency: Cluster.CONCURRENCY_BROWSER,
            maxConcurrency: 2,
            // provide the puppeteer-core library
            puppeteer,
            puppeteerOptions: {
                browserWSEndpoint: await ws(),
                // defaultViewport: null,
            },
            // Put restart function callback here
            restartFunction: ws,
            // current in development
            // perBrowserOptions: [
            //     {
            //         browserWSEndpoint: await ws(),
            //     },
            //     {
            //         browserWSEndpoint: await ws(),
            //     },
            //     {
            //         browserWSEndpoint: await ws(),
            //     },
            // ],
        });

        await cluster.task(async ({ page, data: url }) => {
            console.log("run : " + url);
            await page.goto(url);
            console.log("went to: " + url);
            const screen = await page.screenshot();
            // Store screenshot, do something else
        });

        cluster.queue("https://www.google.com");
        cluster.queue("https://www.wikipedia.org");
        cluster.queue("https://github.com/");
        await cluster.idle();
        await cluster.close();
    } catch (error) {
        console.log(error);
    }
})();