README.md

Hello

index.js

#!/usr/bin/env node
const puppeteer = require("puppeteer");

const inArgs = process.argv.slice(2);

if (inArgs.length !== 1) {
    console.log("Error, wrong usage.");
    console.log("Usage: npx scrape-neo4j-browser-version <url-to-browser>");
    process.exit(1);
}
const url = inArgs.pop();

(async () => {
    try {
        const browser = await puppeteer.launch({
            headless: true,
            args: ['--no-sandbox']
        });
        const page = await browser.newPage();
        await page.goto(url);
        await page.click('button[name="About"]');
        const target = await page.$$("div[id='db-about']");
        const text = await page.evaluate((el) => el.innerText, target[0]);
        const versionMatch = text.match(/Neo4j Browser version: (\d+\.\d+\.\d+)/i);
        const version = versionMatch && versionMatch.length ? versionMatch[1] : null;
        if (!version) {
            throw new Error(`No Neo4j Browser version found on url: ${url}`);
        }
        await browser.close();
        console.log(JSON.stringify({ version }));
        process.exit(0);
    } catch (e) {
        if (typeof browser !== "undefined") {
            await browser.close();
        }
        console.error(e);
        process.exit(1);
    }
})();

package.json

{
    "name": "scrape-neo4j-browser-version",
    "version": "1.0.0",
    "description": "",
    "bin": "./index.js",
    "keywords": [],
    "author": "Oskar Hane",
    "dependencies": {
        "puppeteer": "^5.2.1"
    },
    "engines": {
        "node": "13"
    }
}