Quick Start

yarn add @renproject/gateway

const GatewayJS = require("@renproject/gateway");
​
new GatewayJS("testnet").open({
    // Provide Web3 provider
    web3Provider: await GatewayJS.utils.useBrowserWeb3(),
​
    // Send BTC to an Ethereum address
    sendToken: GatewayJS.Tokens.BTC.Btc2Eth,
​
    // The recipient Ethereum address
    sendTo: "0xD5B5b26521665Cb37623DCA0E49c553b41dbF076",
});

const web3 = require("web3");
​
const btcGatewayAddress = "0x1258d7FF385d1d81017d4a3d464c02f74C61902a"
const btcGatewayABI = (await fetch("https://api.etherscan.io/api?module=contract&action=getabi&address=" + btcGatewayAddress)).json()
const btcGatewayContract = new web3.eth.Contract(btcGatewayABI, btcGatewayAddress);
​
// Burn tokens
const result = await btcGatewayContract.methods.burn(
    web3.utils.fromAscii("2NGZrVvZG92qGYqzTLjCAewvPZ7JE8S8VxE"), //_to
    Math.floor(0.002 * (10 ** 8)), // _amount in Satoshis
).send()