app.js

var express = require("express");
var app = express();
var request = require("request");
var bodyparser = require("body-parser");
var bitcore = require("bitcore-lib");

app.use(bodyparser.urlencoded({
	extended: true
}));
app.use(bodyparser.json());

function brainWallet(uinput, callback) {
	var input = new Buffer(uinput);
	var hash = bitcore.crypto.Hash.sha256(input);
	var bn = bitcore.crypto.BN.fromBuffer(hash);
	var pk = new bitcore.PrivateKey(bn).toWIF();
	var addy = new bitcore.PrivateKey(bn).toAddress();
	callback(pk, addy);
};

app.get("/", function(req, res) {
	res.sendFile(__dirname + "/index.html");
});

app.post("/wallet", function(req, res) {
	var brainsrc = req.body.brainsrc;
	console.log(brainsrc);
	brainWallet(brainsrc, function(priv, addr) {
		res.send("The Brain wallet of: " + brainsrc + "<br>Addy: " + addr + "<br>Private Key: " + priv);;
	});
});

app.listen(3009, function () {
	console.log("listening on post 3009");
});