Express has no method configure error

Question

I'm trying to get started with the MEAN stack. And I'm following this tutorial: link

I have made it until the Test Our Server section. Here

// modules =================================================
var express = require('express');
var app     = express();
var mongoose= require('mongoose');

// configuration ===========================================

// config files
var db = require('./config/db');

var port = process.env.PORT || 8080; // set our port
mongoose.connect(db.url); // connect to our mongoDB database (uncomment after you enter in your own credentials in config/db.js)

app.configure(function() {
    app.use(express.static(__dirname + '/public'));     // set the static files location /public/img will be /img for users
    app.use(express.logger('dev'));                     // log every request to the console
    app.use(express.bodyParser());                      // have the ability to pull information from html in POST
    app.use(express.methodOverride());                  // have the ability to simulate DELETE and PUT
});

// routes ==================================================
require('./app/routes')(app); // configure our routes

// start app ===============================================
app.listen(port);                                       // startup our app at http://localhost:8080
console.log('Magic happens on port ' + port);           // shoutout to the user
exports = module.exports = app;                         // expose app

When I run

nodemon server.js

I get this error

app.configure(function() {
^
TypeError: Object function (req, res, next) {
 app.handle(req, res, next);
} has no method 'configure'
 at Object.<anonymous> (C:\Users\Yuksel\Desktop\node\test\server.js:14:5)
 at Module._compile (module.js:456:26)
 at Object.Module._extensions..js (module.js:474:10)
 at Module.load (module.js:356:32)
 at Function.Module._load (module.js:312:12)
 at Function.Module.runMain (module.js:497:10)
 at startup (node.js:119:16)
 at node.js:902:3
5 Mar 17:27:20 - [nodemon] app crashed - waiting for file changes before startin
g...

It simply says app has no method configure(I guess). But when I delete the configure part and run it again, it works.(This mean app has .listen method, so it is an express object.)

I have tried with both node and nodemon. And I couldn't figure it out. Thank you for your time.

it's because of express 4 – Connor Leech Apr 30 '14 at 06:48 — Connor Leech, Apr 30 '14 at 06:48

score 47 · Answer 1 · answered Apr 26 '14 at 22:44

Tom in his blog post new-features-node-express-4 provides examples of how to convert from using app.configure in express version 3.x to removing it in express version 4.0.

For convenience I added the code example below.

Version 3.x

// all environments
app.configure(function(){
  app.set('title', 'Application Title');
})

// development only
app.configure('development', function(){
  app.set('mongodb_uri', 'mongo://localhost/dev');
})

// production only
app.configure('production', function(){
  app.set('mongodb_uri', 'mongo://localhost/prod');
})

Version 4.0

// all environments
app.set('title', 'Application Title');

// development only
if ('development' == app.get('env')) {
  app.set('mongodb_uri', 'mongo://localhost/dev');
}

// production only
if ('production' == app.get('env')) {
  app.set('mongodb_uri', 'mongo://localhost/prod');
}

thanks man. thanks for showing how to use express as per version 4.0+ — STEEL, Jun 25 '14 at 09:53
Yes, this answer helped me tremendously. I'm glad you spelled it out for us — Eric Bishard, Aug 02 '14 at 07:52

score 22 · Accepted Answer · edited Nov 17 '15 at 03:42

22

The configure method has been removed from express as of version 4.0.0 (including 4.0.0-rc2). See the changelog at https://github.com/strongloop/express/blob/master/History.md#400--2014-04-09

edited Nov 17 '15 at 03:42

n370

3,296
3
15
20

answered Mar 05 '14 at 15:41

Brett

3,825
3
24
27

3

Just to add to this answer - this is the problem because in the tutorial the OP posted, the **package.json** has this in it: **"express": "latest"** which would make this answer correct. Just shows why "latest" isn't a good version to use – Ian Mar 05 '14 at 15:45
4

what method should i use instead? – SuperioREX Mar 05 '14 at 15:58
5

@SuperioREX Don't replace with a new method - just execute the code inside. http://stackoverflow.com/questions/18637148/using-app-configure-in-express – Ian Mar 05 '14 at 16:27

Express has no method configure error

2 Answers2

Linked