npm-package-resolver/api.js

An API for Resolving NPM package dependencies

/**
 * Created by Liam Bilich on 07/03/2016.
 */

// SETUP and EXPRESS BIOLERPLATE
// =============================================================================

var express    = require('express');        // call express
var app        = express();                 // define our app using express
var bodyParser = require('body-parser');
var PackageResolver = require('./libs/package-resolver.js');

var logger = require('./libs/logger.js')('api');

var log = logger.log;
var err = logger.err;
var warn = logger.warn;


// load app config
var _config = require('./libs/config.js');

// get the version
var _version = require('./package.json').version;

// good for printing timestamp in readable format
var moment = require('moment');
var _ = require('underscore');
moment().format();

// current config file according to production or dev env
var config = process.env['NODE_ENV']=="production"?_config.production:_config.development;



var port = config.api.port;        // set our port

// ROUTES FOR OUR API
// =============================================================================
var router = express.Router();              // get an instance of the express Router


router.get('/resolve_deps', function(req, res) { // get package deps
    res.json({ message: 'howdy! yo seeker of deps.... welcome to our dependency resolver api!!! syntax is: api/resolve_deps/package_name ' });
});

/***
 * EXPRESS ROUTING FOR API
 */
router.route('/help')

    // create a bear (accessed at POST http://localhost:8080/api/bears)
    .get(function(req, res) {
        log('reg.params:',req.params);
        res.json({ message: 'please provide package name: api/resolve_deps/pacakge_name' });

    });


router.route('/resolve_deps/:package_name')

    // get the bear with that id (accessed at GET http://localhost:8080/api/bears/:bear_id)
    .get(function(req, res) {
        var package_name = req.params.package_name;
        var resolver = PackageResolver.create();
        // response out and end for testing.
        //res.json({'packagename':package_name});

        log('package_name:',package_name);
        // try loading the pacakge from redis we shall move it later on to a different module.
        if (package_name) { // sanitation and syntax check goes here
            resolver.getDeps(package_name,function(error,deps){
                if (error){
                    res.send({'status:':error});
                } else {
                    res.send(deps);
                }

            })
        }




    });

// REGISTER OUR ROUTES -------------------------------
// all of our routes will be prefixed with "/"
app.use('/api', router);

// configure app to use bodyParser()
// this will let us get the data from a POST
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());




// START THE SERVER
// =============================================================================
app.listen(port);
log('bind server on port ' + port);