PWRJS

PWRJS is a JavaScript library for interacting with the PWR blobkchain. It provides an interface for wallet management and sending transactions on PWR.

Installation

# latest official release (main branch)
$ npm install @pwrjs/core

# or for latest pre-release version (develop branch)
$ npm install @pwrjs/core@next

# or for latest beta release version (beta branch)
$ npm install @pwrjs/core@beta

🌐 Documentation

How to Guides 🔜 & API 💻

Play with Code Examples 🎮

💫 Getting Started

Import the library:

import { PWRJS, PWRWallet } from '@pwrjs/core';
// or
const { PWRJS, PWRWallet } = require('@pwrjs/core');

Create a new instance

const pwrjs = new PWRJS('https://pwrrpc.pwrlabs.io/');

Generate a new wallet:

const privateKey = "0xac0974bec...f80";
const wallet = new PWRWallet(privateKey);

Get wallet address:

const address = await wallet.getAddress();

Get wallet balance:

const balance = await wallet.getBalance();

Get private key:

const privateKey = await wallet.getPrivateKey();

Transfer PWR tokens:

await wallet.transferPWR('recipientAddress', '100');

Sending a transcation to the PWR Chain returns a Response object, which specified if the transaction was a success, and returns relevant data. If the transaction was a success, you can retrieive the transaction hash, if it failed, you can fetch the error.

try {
  const r = await wallet.transferPWR('recipientAddress', 1000);

  if (r.status == true) {
    console.log('Transcation Hash: ' + r.data);
  }
} catch (e) {
  console.log(e);
}

Send data to a VM:

const vmId = 123;
const dataBytes = Buffer.from('Hello World!');

try {
  const r = await wallet.sendVMDataTxn(vmId, dataBytes);
  if (r.status == true) {
    console.log('Transcation Hash: ' + r.data);
  }
} catch (e) {
  console.log(e);
}

Other Static Calls

Get RPC Node Url:

Returns currently set RPC node URL.

const url = await PWRJS.getRpcNodeUrl();

**Get Fee Per Byte: **

Gets the latest fee-per-byte rate.

const fee = await PWRJS.getFeePerByte();

Get Balance Of Address:

Gets the balance of a specific address.

const balance = await PWRJS.getBalanceOfAddress('0x...');

Get Nonce Of Address:

Gets the nonce/transaction count of a specific address.

const nonce = await PWRJS.getNonceOfAddress('0x...');

Broadcast Txn:

Broadcasts a signed transaction to the network.

const signedTransaction = "...";
const broadcast = await PWRJS.broadcastTxn(signedTransaction);

✏️ Contributing

If you consider to contribute to this project please read CONTRIBUTING.md first.

You can also join our dedicated channel for pwrjs on the PWR Chain Discord

📜 License

Copyright (c) 2025 PWR Labs

Licensed under the MIT license.