JSON Parsing

JSON

/* Sets up a socket using javaScript that then listens
for transations and writes them to the screen. */

var wSocket = "ws://ws.blockchain.info/inv";

function getBlockchainJSON() {
    webSocket = new WebSocket(wSocket);
    webSocket.onopen = function() { onOpen() };
    webSocket.onmessage = function(evt) { onMsg(evt) };
};

function onOpen() {
    webSocket.send('{"op":"unconfirmed_sub"}');
;}

function onMsg(evt) {
    var data = parseJSON(evt.data);
    writeBlockchainToScreen(data);
};

function parseJSON(data) {
    var bcObject = JSON.parse(data);
    var size = bcObject.size;
    return size;
};

function writeBlockchainToScreen(data) {
    var transaction = document.createElement("div");
    var text = document.createTextNode(data);
    transaction.id = "transaction";
    transaction.appendChild(text);
    var getId = document.getElementById("realTimeTransactions");
    getId.appendChild(transaction);
};

window.addEventListener("load", getBlockchainJSON , false);