A live intraday trading signal dashboard for NSE equities, powered by Zerodha Kite Connect WebSocket streams. Screens up to 500 NSE stocks in real time across four independent quantitative strategies and surfaces only the actionable Buy/Sell signals with computed stoploss levels.

Browser (React)
		│
		│  HTTPS  /api/*              REST — algo list, session, market status
		│  WSS    /socket.io/*        Realtime signal stream
		▼
Traefik (reverse proxy + TLS)
		├──▶ nginx  (React SPA)           :80
		└──▶ Node/Express                 :8001
							│
							│  WebSocket (KiteTicker)
							▼
				 Zerodha Kite Connect
							│  Tick stream (up to 3000 instruments, full mode)
							▼
				 Algo Engine (per-tick, stateful, pure functions)
							│  filtered signals
							▼
				 Socket.IO broadcast  ──▶  Browser live update

Data flow per tick:

1. KiteTicker emits a raw tick for each subscribed instrument.
2. The active algorithm's onTick(state, tick, timeIST) pure function computes the new state.
3. matchesCriteria(state) filters to only Buy/Sell signals.
4. The filtered signal set is broadcast over Socket.IO to all connected clients.
5. React re-renders only the changed signal cards.

Tracks the high and low of every tick during the configurable opening window (default 09:15–09:30).

• Buy when price breaks above ORB High; stoploss = ORB Low
• Sell when price breaks below ORB Low; stoploss = ORB High

Uses NSE's intraday VWAP (average_price from KiteTicker) as the reference.

• Buy when LTP > VWAP + threshold% (default 0.1%)
• Sell when LTP < VWAP − threshold%; stoploss = VWAP

Measures intraday move from the day's open price (ohlc.open).

• Buy when change ≥ +threshold% (default 0.5%)
• Sell when change ≤ −threshold%; stoploss = day open

Computes two exponential moving averages over successive tick prices using the standard EMA formula, then signals on crossover events.

• Buy on short-EMA (default 9) crossing above long-EMA (default 21)
• Sell on reverse crossover; stoploss tracks the long-EMA dynamically

ORB Strategy/
	dashboard/          React frontend
		src/
			components/     header, home, start, stocks, MarketClosedPage
		Dockerfile        Multi-stage: node build → nginx serve
		nginx.conf
	server/             Node/Express backend
		algos/            orb.js  vwap.js  momentum.js  ema.js  index.js
		controllers/      method.js  (KiteTicker + Socket.IO engine)
		data/             nse_symbols.js  (Nifty 50 / 100 / 500 lists)
		routes/           api.js
		Dockerfile
docker-compose.prod.yml
.env.production.example
.github/workflows/deploy.yml

cd "ORB Strategy/server"
cp .env.example .env          # fill in API_KEY + API_SECRET
npm install
npm start                     # :8001 REST  |  :4001 Socket.IO

cd "ORB Strategy/dashboard"
cp .env.example .env          # set REACT_APP_KITE_API_KEY
npm install
npm start                     # :3000

Requires a Zerodha Kite Connect API key. For development, paste the access token manually in the UI after logging in.

Source code is cloned into /opt/projects/intra-trade on every push. Stack config (compose + env) lives in /home/ubuntu/stacks/intra-trade and is never committed to git.

mkdir -p /home/ubuntu/stacks/intra-trade
# copy docker-compose.prod.yml into it
# create .env.production from .env.production.example with real values

APP_DOMAIN=intra-trade.duckdns.org

# Build-time dashboard config
REACT_APP_API_BASE_URL=https://intra-trade.duckdns.org
REACT_APP_SOCKET_URL=https://intra-trade.duckdns.org
REACT_APP_KITE_API_KEY=your-kite-api-key
REACT_APP_DEFAULT_WATCHLIST=NIFTY50

# Server runtime
PORT=8001
CLIENT_ORIGIN=https://intra-trade.duckdns.org
SOCKET_PORT=4001
MARKET_STATUS_SYMBOL=NSE:NIFTY 50
MARKET_OPEN_TIME=09:15:00
MARKET_CLOSE_TIME=15:30:00

API_KEY=your-kite-api-key
API_SECRET=your-kite-api-secret

WATCHLIST_SIZE=NIFTY50
ORB_START_TIME=09:15:00
ORB_END_TIME=09:30:00
VWAP_THRESHOLD_PCT=0.1
MOMENTUM_THRESHOLD_PCT=0.5
EMA_SHORT_PERIOD=9
EMA_LONG_PERIOD=21

Push to master or main — GitHub Actions handles the rest.

git push origin master

Traefik routes on intra-trade.duckdns.org:

• /api/*, /health → Node API (:8001)
• /socket.io/* → Socket.IO (:4001)
• everything else → React SPA (:80)