echo-service.js

echo-service.js

var express    = require('express');
var http       = require('http');
var os         = require('os');

var config = {
    serviceName: 'Echo',
    hostname:    process.env.HOSTNAME          || os.hostname(),
    port:        process.env.SERVICE_PORT      || 8001
};

var startup_server = function(config) {
    var app = express();
    var server = http.createServer(app);

    app.use(function(req, res, next) {
        res.header('X-Bla-Service', config.serviceName);
        res.header('X-Bla-Version', config.version);
        res.header('X-Bla-Host',    config.hostname);
        next();
    });

    app.get('/favicon.ico', function(req, res) {
        res.send('');
    });

    app.get('/', function(req, res) {
        var result = {
            headers:       req.headers,
            method:        req.method,
            url:           req.url,
            remoteAddress: req.socket.remoteAddress,
            remotePort:    req.socket.remotePort,
            localAddress:  req.socket.localAddress,
            localPort:     req.socket.localPort
        };
        res.status(200).json(result);
    });

    server.listen(config.port);
    console.log({ config: config }, 'server up and running');
};

startup_server(config);