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Dvisacker/bitcore-fiddling.js

Created December 7, 2017 09:40
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  1. Dvisacker created this gist Dec 7, 2017.
    39 changes: 39 additions & 0 deletions bitcore-fiddling.js
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    // Create a new directory, install bitcore-explorers, and run the node shell
    mkdir bitcoin && cd bitcoin
    npm install --save bitcore-explorers
    node

    // Require the Bitcore libraries into the global namespace
    var bitcore = require(“bitcore-lib”)
    var explo = require(“bitcore-explorers”)
    var shell = {}

    // Generate a new Bitcoin address
    var slug = “somefunkypassword!”
    var hash = bitcore.crypto.Hash.sha256(new Buffer(slug))
    var bn = bitcore.crypto.BN.fromBuffer(hash)
    var pKey = bitcore.PrivateKey(bn)
    var addr = pKey.toAddress()

    // Link to how Bitcoin addresses are created
    "https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses#How_to_create_Bitcoin_Address"

    // Connect your local shell with a remote BitPay node
    var insight = new explo.Insight()

    // Get Info about an address
    insight.address(addr, (error, result) => { shell.addr = result })
    insight.getUnspentUtxos(addr, (error, result) => { shell.utxos = result })

    // Create a Bitcoin transaction
    var tx = bitcore.Transaction()
    tx.from(utxoObject) // As many times as needed
    tx.fee(feeAmount) // In Satoshis
    tx.to(addr2, amount) // In Satoshis
    tx.change(addr) // Send remaining balance back to this account
    tx.addData() // Add metadata to the transaction
    tx.sign(privateKey)
    tx.serialize() // Check for errors

    // Send the Bitcoin transaction to the live network
    insight.broadcast(tx, (error, txId) => { shell.error = error; shell.txId = txId })