bodyParser is not set error in Node.js

Question

I am trying to create an HTTP server that you will use bodyParser() to request the part of middleware before the handlers. But when trying to use it in the code, indicates error saying that it is not defined.

My code :

var http = require('http');
var connect = require('connect');
var logger = require('morgan');
var app = connect();
// setup the middlewares
app.use(logger(':method :req[content-type]'));
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
// actually respond
app.use(function(req, res) {
res.end(JSON.stringify(req.body));
});
http.createServer(app).listen(8080);

bodyParser is not defined

I’m using the part from bodyParser() as indicated by the current documentation and even by other websites when talking about it. But still, it’s not working. What could be making this mistake?

Answer 1

You need to install the body-parser and require it in your file.

npm install body-parser

var bodyParser = require('body-parser')

Documentation if necessary: https://github.com/expressjs/body-parser#installation

Answer 2

You have to import that package into the file. bodyParser is an Express package, not a Node global.

Merge this at the beginning of the file:

const bodyParser = require('body-parser');

(used const for good practice, but if you have an old version of Node use var)