@stacks/blockchain-api-client

@stacks/blockchain-api-client

A JS Client for the Stacks Blockchain API

Features

This package provides the ability to:

• Execute REST API requests against the Stacks Blockchain API
• Subscribe to WebSockets for real-time Stacks updates (for addresses or transactions)
• Full type safety for WebSocket and API requests and responses

Installation

You can install this package using NPM:

npm install --save-dev @stacks/blockchain-api-client

Usage

Here is an example code that connects with the WebSocket server and subscribes to updates for a specific Stacks address:

import { connectWebSocketClient } from '@stacks/blockchain-api-client';

// for mainnet, replace with ws://stacks-node-api.testnet.stacks.co/
const client = await connectWebSocketClient('wss://stacks-node-api.mainnet.stacks.co/');

const sub = await client.subscribeAddressTransactions('ST3GQB6WGCWKDNFNPSQRV8DY93JN06XPZ2ZE9EVMA', event =>
  console.log(event);
  /*
    {
      address: 'ST3GQB6WGCWKDNFNPSQRV8DY93JN06XPZ2ZE9EVMA',
      tx_id: '0x8912000000000000000000000000000000000000000000000000000000000000',
      tx_status: 'success',
      tx_type: 'token_transfer',
    }
  */
);

await sub.unsubscribe();

Documentation

You can find full references here.

Known Issues

• The TypeScript definitions for several objects involving type unions, including transactions, are incorrectly specified as only object.

Changelog

0.55.3 (2021-03-31)

Bug Fixes

• Added suggested fee (1d66eee)
• better variable name (4d2ade3)
• fee deprecate (bc803a1)
• fix name (4c3e6c0)
• linter complaints (508b71a)
• renaming getStacksTestnetNetwork to fit naming standard (86756f5)
• size should be integer type and not number (5f75b40)
• use BigInt to calculate fee (f5468ad)