WebSocket not sending ticks for NIFTY 50 and SENSEX spot price subscription

aridg

I am trying to subscribe to NIFTY 50 and SENSEX spot prices via the websocket but it doesn't return any tick. I have provided the needed code snippet below.


import { KiteTicker } from "kiteconnect";
import { redis, connectRedis } from "./redis.js";
import fs from "fs/promises";

export async function startTicker() {
const apiKey = process.env.KITE_API_KEY!;
const accessToken = (await fs.readFile("access_token.txt", "utf-8")).trim();
const instruments = JSON.parse(
await fs.readFile("instruments.json", "utf-8")
);

await connectRedis();

const ticker = new KiteTicker({ api_key: apiKey, access_token: accessToken });
ticker.autoReconnect(true, 50, 10);
ticker.connect();

ticker.on("noreconnect", function () {
console.log("noreconnect");
});

ticker.on("reconnect", function (reconnect_interval, reconnections) {
console.log(
"Reconnecting: attempt - ",
reconnections,
" innterval - ",
reconnect_interval
);
});

// 1. Get index tokens
const indexMap = {
"NIFTY 50": instruments.find(
(i) => i.name === "NIFTY 50" && i.instrument_type === "EQ"
)!.instrument_token,
SENSEX: instruments.find(
(i) => i.name === "SENSEX" && i.instrument_type === "EQ"
)!.instrument_token,
};

const indexTokens = Object.values(indexMap);

let spotPrices: Record<number, number> = {};

ticker.on("connect", () => {
console.log("✅ KiteTicker connected");

console.log("???? Subscribing to index tokens:", indexTokens);
ticker.subscribe([...indexTokens]);
ticker.setMode(ticker.modeLTP, [...indexTokens]);
});

// if (ticker.connected()) {
// console.log("✅ Already connected, subscribing to index tokens");
// }

ticker.on("ticks", (ticks) => {
for (const t of ticks) {
if (indexTokens.includes(t.instrument_token)) {
spotPrices[t.instrument_token] = t.last_price;
// Store spot in Redis
const key = `index:${t.instrument_token}`;
redis.hSet(key, {
ltp: t.last_price.toString(),
ts: Date.now().toString(),
});
}
}
});

ticker.on("error", (err) => {
console.error("❌ Ticker error:", err);
});

ticker.on("disconnect", (reason) => {
console.warn("❗ Ticker disconnected:", reason);
});

ticker.on("close", () => {
console.warn("???? Ticker connection closed");
});
}



I have also tried directly passing 256265(NIFTY 50) and 265(SENSEX) directly to the subscribe function in an array. It doesn't return any tick.

Nivas

You won't receive data if the instrument token is incorrect. I recommend fetching the correct instrument token from the instrument file and cross-verifying to ensure you're subscribing to the correct one.