BitMart TypeScript SDK example: ws-custom-logger.ts

BitMart WebSocket websocket custom logger example for the Siebly BitMart SDK, with TypeScript source for exchange REST API and WebSocket integration, setup, and production SDK docs.

What This Example Covers

  • BitMart WebSocket stream example in TypeScript.
  • Uses the Siebly BitMart SDK package bitmart-api instead of hand-written WebSocket plumbing.
  • Source path: Bitmart/Websocket/ws-custom-logger.ts.
  • Example category: WebSocket.
  • Imports SDK symbols including DefaultLogger, WebsocketClient.
  • Calls SDK methods such as on(), subscribe().

How To Use This Example

  • Start here for the specific request or stream pattern, then check the matching SDK guide for install, credentials, and operational notes.
  • For WebSocket examples, keep reconnect, resubscribe, heartbeat, and event-handler behavior explicit in your service.
  • Open the repository source when you need the latest committed version: GitHub source file.

Example Path

Bitmart/Websocket/ws-custom-logger.ts

Source Link

Repository source: https://github.com/sieblyio/crypto-api-examples/blob/master/examples/Bitmart/Websocket/ws-custom-logger.ts

Related SDK Docs

Example Source

import { DefaultLogger, LogParams, WebsocketClient } from 'bitmart-api';

/** Optional, implement a custom logger */
const customLogger: typeof DefaultLogger = {
  trace: (...params: LogParams): void => {
    console.log('silly', ...params);
  },
  info: (...params: LogParams): void => {
    console.info(params);
  },
  error: (...params: LogParams): void => {
    console.error(params);
  },
};

async function start() {
  const client = new WebsocketClient(undefined, customLogger);

  client.on('open', (data) => {
    console.log('open: ', data?.wsKey);
  });

  // Data received
  client.on('update', (data) => {
    console.info('update: ', data);
  });

  // Something happened, attempting to reconenct
  client.on('reconnect', (data) => {
    console.log('reconnect: ', data);
  });

  // Reconnect successful
  client.on('reconnected', (data) => {
    console.log('reconnected: ', data);
  });

  // Connection closed. If unexpected, expect reconnect -> reconnected.
  client.on('close', (data) => {
    console.error('close: ', data);
  });

  // Reply to a request, e.g. "subscribe"/"unsubscribe"/"authenticate"
  client.on('response', (data) => {
    console.info('response: ', data);
  });

  client.on('exception', (data) => {
    console.error('exception: ', data);
  });

  client.on('authenticated', (data) => {
    console.error('authenticated: ', data);
  });

  try {
    client.subscribe('spot/ticker:BTC_USDT', 'spot');
    //
  } catch (e) {
    console.error('Req error: ', e);
  }
}

start();