I am using express 4.0 and I'm aware that body parser has been taken out of the express core, I am using the recommended replacement, however I am getting
body-parser deprecated bodyParser: use individual json/urlencoded middlewares server.js:15:12
body-parser deprecated urlencoded: explicitly specify "extended: true" for extended parsing node_modules/body-parser/index.js:74:29
Where do I find this supposed middlewares? or should I not be getting this error?
var express = require('express');
var server = express();
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
var passport = require('./config/passport');
var routes = require('./routes');
mongoose.connect('mongodb://localhost/myapp', function(err) {
if(err) throw err;
});
server.set('view engine', 'jade');
server.set('views', __dirname + '/views');
server.use(bodyParser());
server.use(passport.initialize());
// Application Level Routes
routes(server, passport);
server.use(express.static(__dirname + '/public'));
server.listen(3000);
This question is related to
node.js
express
middleware
I found that while adding
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: true
}));
helps, sometimes it's a matter of your querying that determines how express handles it.
For instance, it could be that your parameters are passed in the URL rather than in the body
In such a case, you need to capture both the body and url parameters and use whichever is available (with preference for the body parameters in the case below)
app.route('/echo')
.all((req,res)=>{
let pars = (Object.keys(req.body).length > 0)?req.body:req.query;
res.send(pars);
});
If you're using express > 4.16
, you can use express.json()
and express.urlencoded()
The
express.json()
andexpress.urlencoded()
middleware have been added to provide request body parsing support out-of-the-box. This uses theexpressjs/body-parser
module module underneath, so apps that are currently requiring the module separately can switch to the built-in parsers.
Source Express 4.16.0 - Release date: 2017-09-28
With this,
const bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
becomes,
const express = require('express');
app.use(express.urlencoded({ extended: true }));
app.use(express.json());
app.use(bodyParser.urlencoded({extended: true}));
I have the same problem but this work for me. You can try this extended part.
What is your opinion to use express-generator it will generate skeleton project to start with, without deprecated messages
appeared in your log
run this command
npm install express-generator -g
Now, create new Express.js starter application by type this command in your Node projects folder
.
express node-express-app
That command tell express to generate new Node.js application with the name node-express-app
.
then Go to the newly created project directory
, install npm packages
and start the app
using the command
cd node-express-app && npm install && npm start
In older versions of express, we had to use:
app.use(express.bodyparser());
because body-parser was a middleware between node and express. Now we have to use it like:
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
Want zero warnings? Use it like this:
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: true
}));
Explanation: The default value of the extended
option has been deprecated, meaning you need to explicitly pass true or false value.
body-parser is a piece of express middleware that reads a form's input and stores it as a javascript object accessible through
req.body
'body-parser' must be installed (vianpm install --save body-parser
) For more info see: https://github.com/expressjs/body-parser
var bodyParser = require('body-parser');
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies
When extended
is set to true, then deflated (compressed) bodies will be inflated; when extended
is set to false, deflated bodies are rejected.
Source: Stackoverflow.com