Install the package

terminal npm 
npm install web-analytics-reporter

Use the generic runner

runDailySummary() is the portable API. It works anywhere Node.js can run and does not depend on Vercel.

daily-summary.js Node.js 
const {
  runDailySummary,
  ga4Source,
  telegramDestination
} = require("web-analytics-reporter");

async function main() {
  await runDailySummary({
    source: ga4Source({
      clientEmail: process.env.GOOGLE_CLIENT_EMAIL,
      privateKey: process.env.GOOGLE_PRIVATE_KEY
    }),
    destination: telegramDestination({
      botToken: process.env.TELEGRAM_BOT_TOKEN
    }),
    sites: [
      {
        id: "app",
        name: "App Website",
        ga4PropertyId: process.env.GA4_PROPERTY_ID,
        telegramChatId: process.env.TELEGRAM_CHAT_ID
      }
    ],
    timeZone: "UTC"
  });
}

main();

Where to run it

For a VPS, run the script from system cron. For a backend, expose an authenticated Express route. For platforms, use Railway cron, Netlify scheduled functions, Vercel Cron, or GitHub Actions.

If the report endpoint is public, protect it with a long random secret and call it only from your scheduler.

GA4 report npm packageUse the package APIs and examples. Read Multi-site GA4 reportingReport several properties from one job. Read