modem-request.js

/* jshint node:true */

process.binding('http_parser').HTTPParser = require('http-parser-js').HTTPParser;
var http = require('http');
var url = require('url');
var printf = require('util').format;
var Promise = require('bluebird');


var modemRequest = Promise.method(function(modemUrl) {
    var urlComponents = url.parse(modemUrl);
    return new Promise(function(resolve, reject) {
        var options = {
            hostname: urlComponents.hostname,
            path: '/getdeviceinfo/info.bin',
            timeout: 3000
        };
        var request = http.request(options, function(response) {
            // Build the body
            var modemData = '';
            response.on('data', function(chunk) {
                modemData += chunk;
            });

            // Resolve the promise when the response ends
            response.on('end', function() {
                response.body = modemData;
                resolve(response);
            });
        });

        // Handle errors
        request
            .on('error', function(error) {
                console.log('Problem with request:', error.message);
                reject(error);
            })
            .end();
    });
});


var modemUrl = printf('http://%s/getdeviceinfo/info.bin', '192.168.0.1');
modemRequest(modemUrl)
    .then(function(response) {
        console.log('AND WE\'RE BACK!');
        console.log(response.body);
    })
    .catch(function(err) {
        console.log(err);
    })
    .finally(function() {
        console.log('FINALLY...');
    });