npm express "hello world" middleware error

Question

node --version v0.10.26

npm --version 1.4.3

I followed this: http://expressjs.com/guide.html

which has this code

    var express = require('express'),
    app = express();
app.use(express.logger());

app.get('/', function(req, res){
    res.send('Hello World');
});

var server = app.listen(3000, function() {
    console.log('Listening on port %d', server.address().port);
});

I try 'node app.js' in the terminal and I got this error:

Error: Most middleware (like logger) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware.

    at Function.Object.defineProperty.get 

(/home/mike/node/helloworld/node_modules/express/lib/express.js:89:13)

    at Object.<anonymous> (/home/mike/node/helloworld/app.js:4:17)

    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

I'm new with express, any help will be welcomed. Thanks.

The error pretty much sums it up, `express.logger()` is no longer included, you have to install it separately. — adeneo, Apr 16 '14 at 23:58

score 37 · Accepted Answer · 2014-04-16T23:24:32.313

37

The first line tells it all:

Error: Most middleware (like logger) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware.

Looking at https://github.com/senchalabs/connect#middleware we can see that express.logger has been replaced with morgan.

var logger = require('morgan');
app.use(logger); //replaces your app.use(express.logger());

Remember to npm install morgan and/or add it to your package.json

edited Apr 16 '14 at 23:24

answered Apr 16 '14 at 23:17

6

in the last line I had to write "app.use(logger());" to make it work. – johnnydoe82 May 29 '14 at 13:02

score 6 · Answer 2 · answered Dec 12 '14 at 11:52

I faced the same problem. I ran the below from the directory where my node js file was

npm install --save morgan

Using above command adds the dependency to your package.json.

Once package added, logger can now be used as

logger = require('morgan');
app.use(logger('dev'));

score 1 · Answer 3 · edited Oct 24 '17 at 08:58

1

Most middleware (like logger) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware

express.logger('dev') is removed from express module.

use logger like morgan.

var morgan = require("morgan");
app.use(morgan('combined'));

for more details on morgan checkout the below link morgan

edited Oct 24 '17 at 08:58

kmonsoor

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answered May 14 '15 at 05:59

Sumeet_Pol

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13

Should be app.use there instead of app.user. – Tony Feb 23 '16 at 08:16

score 1 · Answer 4 · edited Aug 28 '16 at 16:22

1

You need a previous version:

npm install express@3.0.0

edited Aug 28 '16 at 16:22

Tunaki

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answered Aug 28 '16 at 16:11

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npm express "hello world" middleware error

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