Node.js

Native napi-rs bindings over the Rust core. The same Exchange API — a paper account fills through the wickra-backtest engine behind the trait a live venue uses.

npm install wickra-exchange

import { Exchange, OrderRequest } from 'wickra-exchange'

const ex = Exchange.paper({ USDT: 100000 }, 1, 5, 10)
console.log('venue:', ex.name())
ex.setPrice('BTC/USDT', 20000)

const order = ex.placeOrder(OrderRequest.marketBuy('BTC/USDT', 1))
console.log(`filled at ${order.averagePrice} (status ${order.status})`)

for (const [asset, free] of Object.entries(ex.balances())) {
  console.log(`  ${asset} free: ${free}`)
}

for (const event of ex.pollEvents()) {
  console.log('event:', event.kind)
}

A live venue is the same class — Exchange.new('binance', creds, opts) — so the strategy code is identical paper ↔ live.

More

• npm
• Source & examples
• Exchanges · Authentication