AutoClassJoiner — LPU MyClass Auto Attendance Bot

Automatically login and join classes on myclass.lpu.in (CodeTantra). Runs 24/7 on Render — works even when your laptop is off.

Features

• 🔐 Auto-login to myclass.lpu.in
• 📅 Timetable scraping from CodeTantra dashboard
• ✅ Auto-join when a class starts (green status detected)
• ⏰ Cron scheduler (every 2 min, Mon–Sat, 8AM–9PM IST)
• 📊 Web dashboard with real-time status & logs
• 🔄 Self-ping to keep Render free tier alive

Deploy to Render

1. Fork/clone this repo
2. Go to render.com → New Web Service
3. Connect your repo
4. Set runtime to Docker
5. Add environment variables:
   • REG_NUMBER = your registration number
   • PASSWORD = your UMS password
6. Deploy 🚀

Ensuring 24/7 Stability (Render Free Tier)

Render's free tier spins down the server after 15 minutes of inactivity. To keep the bot active and prevent "Web server is down" errors:

1. Create a free account on UptimeRobot.
2. Add a new HTTP(s) Monitor.
3. Set the URL to: https://your-service-name.onrender.com/ping
4. Set the monitoring interval to 5 minutes.

This keeps the instance warm and ensures classes are joined exactly on time.

Local Testing

npm install
REG_NUMBER=12345678 PASSWORD=yourpass node server.js
# Dashboard → http://localhost:3000

MAKE SURE TO STAR MY REPO :)

Tech Stack

Node.js · Puppeteer · Express · node-cron · Docker

⚠️ Credentials are stored as environment variables on Render (encrypted at rest). They are never committed to code.