escrow-bitcoin/lib/escrow.js

A service to make possible escrow transactions using BTC (Bitcoin)

const Address = require("./address")
const Transaction = require("./transaction")
const bitcore = require("bitcore-lib");

/**
 * Make Escrow wallet send bitcoin 
 * 
 * @param {Address} escrowAddress - Address to withdraw
 * @param {PrivateKey} escrowPrivateKey - PrivateKey from Address to withdraw to sign transaction
 * @param {Address} addressTo - Address to send
 * @param {Number} amount - Amount (in satoshis)
 * @param {Networks} [network=bitcore.Networks.testnet] - Network to make transaction
 * @returns string (transaction id)
 */
function Escrow(escrowAddress, escrowPrivateKey, addressTo, amount, network = bitcore.Networks.testnet) {
    return new Promise(function (resolve, reject) {
        new Transaction(escrowAddress, escrowPrivateKey, addressTo, amount, network).then(function (transactionId) {
            resolve(transactionId)
        }).catch(reject)
    });
}
/* ... */

/**
 * Create a Escrow Wallet
 * 
 * @param {Number} amount - Amount to escrow (in satoshis)
 * @param {Networks} [network=bitcore.Networks.testnet] - Network to make transaction
 * @returns {Object} (with privateKey, adress and URI to request payment)
 */
Escrow.createEscrowAddress = function createEscrowAddress(amount, network = bitcore.Networks.testnet) {
    return new Promise(function (resolve, reject) {
        const privateKey = Address.createPrivateKey(undefined, network);
        new Address(privateKey, network).then(function (escrowAddress) {
            resolve({
                privateKey: privateKey,
                address: escrowAddress,
                URI: Address.requestPayment(escrowAddress, amount)
            })
        }).catch(reject)
    })
}

Escrow.Networks = bitcore.Networks;
module.exports = Escrow;