Live prices

Everything else in these docs describes the stream. This page is the stream — a real Socket.IO connection to dev-marketdata.dimetrades.com, subscribing to SUBSCRIBE_CRYPTO and rendering CRYPTO_PRICE_UPDATE ticks as they arrive.

Prices come from the Pyth Network / spot price stream. The counter above shows the observed rate and the transport in use.

What it is doing

import { io } from "socket.io-client";

const socket = io("https://dev-marketdata.dimetrades.com", { path: "/eventPage" });

socket.on("connect", () => {
  socket.emit("SUBSCRIBE_CRYPTO", "BTC,ETH,SOL", (res) => {
    // res.prices — snapshot keyed by symbol
  });
});

socket.on("initial_crypto_prices", (prices) => { /* snapshot */ });
socket.on("CRYPTO_PRICE_UPDATE", (tick) => { /* one per trade */ });

That is the whole client. See SUBSCRIBE_CRYPTO for the payload contract and WebSocket Connection for authentication.

If it shows nothing

Status stays on 'connecting…'

The docs origin must be allow-listed for CORS on the market-data consumer. Serve them on :8092 — npm run docker:run maps it by default. Any other port is rejected by the browser before the handshake completes.

Connected, but no rows appear

Use standard crypto symbols (BTC, ETH, SOL). Legacy pair notation (BTCUSDT) is also normalized and accepted — see SUBSCRIBE_CRYPTO.

It worked, then stopped

Socket.IO reconnects on its own; the status line reports the disconnect reason. Subscriptions are per-connection and are not restored automatically — a reconnecting client must re-subscribe, which this page does on every connect.

This page points at the development environment. It is a documentation demo, not a trading surface — prices here are not authoritative.

Getting started

Reference

Events & markets

Webhooks

External Wallet

WebSockets

What it is doing

If it shows nothing

​What it is doing

​If it shows nothing

What it is doing

If it shows nothing