@jpmorganchase/perspective-examples/build/node_client.js

Perspective.js

/******************************************************************************
 *
 * Copyright (c) 2017, the Perspective Authors.
 *
 * This file is part of the Perspective library, distributed under the terms of
 * the Apache License 2.0.  The full license can be found in the LICENSE file.
 *
 */

const http = require("http");
const queryString = require("query-string");

var SECURITIES = ["AAPL.N", "AMZN.N", "QQQ.N", "NVDA.N", "TSLA.N", "FB.N", "MSFT.N", "TLT.N", "XIV.N", "YY.N", "CSCO.N", "GOOGL.N", "PCLN.N"];

var CLIENTS = ["Homer", "Marge", "Bart", "Lisa", "Maggie", "Moe", "Lenny", "Carl", "Krusty"];

function newRow() {
    return {
        name: SECURITIES[Math.floor(Math.random() * SECURITIES.length)],
        client: CLIENTS[Math.floor(Math.random() * CLIENTS.length)],
        lastUpdate: new Date(),
        chg: Math.random() * 20 - 10,
        bid: Math.random() * 10 + 90,
        ask: Math.random() * 10 + 100,
        vol: Math.random() * 10 + 100,
        id: Math.floor(Math.random() * 500)
    };
}

function postrow() {
    var url = "http://localhost:3000/?" + queryString.stringify(newRow());
    console.log(url);
    http.get(url, res => {
        res.on("data", () => {});
        res.on("end", () => {
            postrow();
        });
    });
}

postrow();