ccxt-private-ws

CCXT Private Websockts

A JavaScript library for cryptocurrency trading using authenticated websocket connections.

Features

• Provides data structure compatibility to CCXT.
• Typescript support
• Missing websocket features are executed via REST API using CCXT

WARNING THIS PROJECT IS IN AN EARLY STAGE, HAS NO TESTS AND GIVES YOU NO GUARANTEES ON ANYTHING!

Supported Exchanges

Exchange	Orders	Account	Notes
Bitfinex	✅	✅
Binance	✅	✅	Order creation/cancellation via REST API
Kraken	✅	❌	Order creation/cancellation via REST API

Installation

yarn install ccxt-private-ws

Examples

Subscribing to order stream

Import the library:

import * as CcxtPrivateWs from 'ccxt-private-ws';

Create an exchange instance using your credentials:

const exchange = new CcxtPrivateWs['bitfinex']({ credentials: { apiKey: 'XXX', secret: 'YYY' } });

Subscribe the channels you are interested in and start the connection.

exchange.subscribeOrders({
  callback: event => console.log(event.type, event.order)
});
exchange.connect();

Creating an order

await exchange.createOrder({
    symbol: 'USDT/USD';
    type: 'limit';
    side: 'buy';
    amount: 1;
    price: 1.001;
})

Canceling an order

await exchange.createOrder({
    id: 'XXXX-XXXX-XXXX-XXXX';
})

API

Exchange Methods

connect(): Promise<void>

Starts the connection to the exchange and does the authentication.

disconnect(): Promise<void>

Stops the connection to the exchange.

subscribeOrders(): void

Enable order update subscription. For each order update an order event is emitted. Subscribe to the order event using exchange.on('order, listener).

subscribeBalances(): void

Enable balance update subscription. For each balance update a balance event is emitted. Subscribe to the balance event using exchange.on('balance, listener).

createOrder?({ order }: { order: OrderInput }): Promise<void>

Creates an order.

cancelOrder?({ id }: { id: string }): Promise<void>

Cancels an order.

createClientId?(): string

Creates an exchange compliant order client id that can be used when calling createOrder.

getName(): string

Returns the lowercase exchange name.

Exchange Events

on(event: 'order', listener: OrderListener): void

Emitted when an order update is received. The listener event contains the full order that has been aggregated over all subsequent updates.

on(event: 'balance', listener: BalanceListener): void

Emitted when a balance update is received. The listener event might only contain the updated balances but will always contain current values for total, used and free.

on(event: 'fullBalance', listener: BalanceListener): void

Emitted when a balance update is received. This always contains all account balances for the specific exchange. Some exchanges might only send balance events.

on(event: 'connect', listener: ConnectListener): void

Emitted when the websocket connection was established and the authentication succeeded.