Web Server parts of trading-engine-parent3

trading-engine-parent3-web-server-bits.js

logger.info('setting up HTTP server for receiving commands');
 
var express = require('express')
var app = express()
var id = 0;
app.get('/buy', function (req, res) {
    logger.info(id + ') buying "' + req.query.quantity + '" of "' + req.query.productId + '"');
    ...
});
app.get('/sell', function (req, res) {
    logger.info(id + ') selling "' + req.query.quantity + '" of "' + req.query.productId + '" at price "' + req.query.price + '"');
    ...
});
app.get('/result', function (req, res) {
    var key = parseInt(req.query.id);
    var r = results.get(key);
    if(r){
        results.delete(key);
        res.json(r);
    }else{
        res.json({msg: 'UNKNOWN OR PENDING'});
    }
});
 
var server = app.listen(3000, function () {
  logger.warn('Trading engine listening at http://%s:%s', host, port)
});