node.js, express, how to get data from body form-data in post request

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after hours, i found it.

body-parser its not required because in newest express is included.

i have found how to get form-data, it require multer(for parsing multipart/form data) middleware. i have found it in here.

first install multer

npm install multer --save

import multer in your app. for example in my code

var express = require('express');
var app = express();
var multer = require('multer');
var upload = multer();

// for parsing application/json
app.use(express.json()); 

// for parsing application/x-www-form-urlencoded
app.use(express.urlencoded({ extended: true })); 

// for parsing multipart/form-data
app.use(upload.array()); 
app.use(express.static('public'));

app.post('/api/user', function (req, res) {
    console.log(req.body);
    console.log(req.body.username);
});

module.exports = app;

so, it can receive form-data, raw, or x-www-form-urlencoded.

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