node.js - How to start expressjs(nodejs) as production mode -
i want start express server in production mode. have tried running following command
sudo node_env=production node server.js while
sudo node server.js starts server in development mode out problem. first command starts server in production mode homepage opens blank black bar on top. have 2 request fail
request url:http://localhost:3000/public/build/js/dist.min.js request method:get status code:404 not found\ request url:http://localhost:3000/public/build/css/dist.min.css request method:get status code:404 not found i indeed have requests getting success in development mode. couldnt figure out source these requests, while there no such files or request in development mode. working on boiler plate code of mean.io .
//server/config/config.js 'use strict'; // utilize lo-dash utility library var _ = require('lodash'), fs = require('fs'); // load configurations // set node environment variable if not set before process.env.node_env = ~fs.readdirsync('./server/config/env').map(function(file) { return file.slice(0, -3); }).indexof(process.env.node_env) ? process.env.node_env : 'development'; // extend base configuration in all.js environment // specific configuration module.exports = _.extend( require('./env/all'), require('./env/' + process.env.node_env) || {} ); following express.js
//server/config/express.js 'use strict'; /** * module dependencies. */ var express = require('express'), favicon = require('static-favicon'), morgan = require('morgan'), compression = require('compression'), bodyparser = require('body-parser'), methodoverride = require('method-override'), cookieparser = require('cookie-parser'), session = require('express-session'), errorhandler = require('errorhandler'), mean = require('meanio'), consolidate = require('consolidate'), mongostore = require('mean-connect-mongo')(session), flash = require('connect-flash'), helpers = require('view-helpers'), config = require('./config'), expressvalidator = require('express-validator'), apppath = process.cwd(), util = require('./util'), assetmanager = require('assetmanager'), fs = require('fs'), grid = require('gridfs-stream'); module.exports = function(app, passport, db) { var gfs = new grid(db.connections[0].db, db.mongo); app.set('showstackerror', true); // prettify html app.locals.pretty = true; // cache=memory or swig dies in node_env=production app.locals.cache = 'memory'; // should placed before express.static // ensure assets , data compressed (utilize bandwidth) app.use(compression({ // levels specified in range of 0 9, where-as 0 // no compression , 9 best compression, slowest level: 9 })); // use logger development environment if (process.env.node_env === 'development') { app.use(morgan('dev')); } // assign template engine .html files app.engine('html', consolidate[config.templateengine]); // set .html default extension app.set('view engine', 'html'); // set views path, template engine , default layout app.set('views', config.root + '/server/views'); // enable jsonp app.enable('jsonp callback'); // cookieparser should above session app.use(cookieparser()); // request body parsing middleware should above methodoverride app.use(expressvalidator()); app.use(bodyparser()); app.use(methodoverride()); app.use(cookieparser()); // import asset file var assets = require('./assets.json'); assetmanager.init({ js: assets.js, css: assets.css, debug: (process.env.node_env !== 'production'), webroot: 'public/public' }); // add assets local variables app.use(function(req, res, next) { res.locals.assets = assetmanager.assets; next(); }); // express/mongo session storage app.use(session({ secret: config.sessionsecret, store: new mongostore({ db: db.connection.db, collection: config.sessioncollection }) })); // dynamic helpers app.use(helpers(config.app.name)); // use passport session app.use(passport.initialize()); app.use(passport.session()); //mean middleware modules before routes app.use(mean.chainware.before); // connect flash flash messages app.use(flash()); // setting fav icon , static folder app.use(favicon()); app.get('/modules/aggregated.js', function(req, res) { res.setheader('content-type', 'text/javascript'); res.send(mean.aggregated.js); }); function themehandler(req, res) { res.setheader('content-type', 'text/css'); gfs.files.findone({ filename: 'theme.css' }, function(err, file) { if (!file) { fs.createreadstream(process.cwd() + '/public/system/lib/bootstrap/dist/css/bootstrap.css').pipe(res); } else { // streaming gridfs var readstream = gfs.createreadstream({ filename: 'theme.css' }); //error handling, e.g. file not exist readstream.on('error', function(err) { console.log('an error occurred!', err.message); throw err; }); readstream.pipe(res); } }); } // override file allow swap themes // keep same public path can make use of bootstrap assets app.get('/public/system/lib/bootstrap/dist/css/bootstrap.css', themehandler); app.get('/modules/aggregated.css', function(req, res) { res.setheader('content-type', 'text/css'); res.send(mean.aggregated.css); }); app.use('/public', express.static(config.root + '/public')); mean.events.on('modulesfound', function() { (var name in mean.modules) { app.use('/' + name, express.static(config.root + '/' + mean.modules[name].source + '/' + name + '/public')); } function bootstraproutes() { // skip app/routes/middlewares directory meant // used , shared routes further middlewares , not // route util.walk(apppath + '/server/routes', 'middlewares', function(path) { require(path)(app, passport); }); } bootstraproutes(); //mean middlware modules after routes app.use(mean.chainware.after); // assume "not found" in error msgs 404. // silly, valid, can whatever like, set properties, // use instanceof etc. app.use(function(err, req, res, next) { // treat 404 if (~err.message.indexof('not found')) return next(); // log console.error(err.stack); // error page res.status(500).render('500', { error: err.stack }); }); // assume 404 since no middleware responded app.use(function(req, res) { res.status(404).render('404', { url: req.originalurl, error: 'not found' }); }); // error handler - has last if (process.env.node_env === 'development') { app.use(errorhandler()); } }); }; i did not make changes in either of above files after starting code mean.io. 
this solved running following commands before starting server
grunt cssmin grunt uglify
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