FlareJS - The Flare Platform JavaScript Library

Overview

FlareJS is a JavaScript Library for interfacing with the Flare Platform. It is built using TypeScript and intended to support both browser and Node.js. The FlareJS library allows you to issue commands to the Flare node APIs. This is an adaptation of the library avalanchejs for Flare network.

Using FlareJS, developers can:

• Retrieve balances on addresses
• Get UTXOs for addresses
• Build and sign transactions
• Issue signed transactions to the X-Chain, P-Chain, and C-Chain
• Perform cross-chain swaps between the X, P and C chains
• Add Validators and Delegators

Requirements

FlareJS requires Node.js LTS version 20.11.1 or higher to compile.

Installation

Using the NPM Package

Add FlareJS to your project via npm or yarn.

For installing via npm:

npm install --save @flarenetwork/flarejs

For installing via yarn:

yarn add @flarenetwork/flarejs

Build from Repository

You can also pull the repo down directly and build it from scratch.

Clone the FlareJS repository:

git clone https://github.com/flare-foundation/flare-js.git

Then build it:

npm run build

or

yarn build

Use FlareJS in Projects

The FlareJS library can be imported into your existing project as follows:

import { avm, pvm, evm } from '@flarenetwork/flarejs';

Importing Essentials

import { avm /** X-chain */, pvm /** P-chain */, evm /** C-chain */, utils, secp256k1 } from "@flarenetwork/flarejs"

// example calls
const exportTx = avm.newExportTx(...) // constructs a new export tx from X
const addValidatorTx = pvm.newAddPermissionlessValidatorTx(...) // constructs a new add validator tx on P
const importTx = evm.newImportTx(...) // constructs a new import tx to C

const publicKeyBytes = utils.hexToBuffer(publicKeyHex)
const signature = secp256k1.signHash(bytes, privateKeyBytes)

Please check out the examples folder for more info.