req body express code example

Example 1: body parser express

//make sure it is in this order
npm i body-parser

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

const app = express()

// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }))

// parse application/json
app.use(bodyParser.json())

app.use(function (req, res) {
  res.setHeader('Content-Type', 'text/plain')
  res.write('you posted:\n')
  res.end(JSON.stringify(req.body, null, 2))
})

Example 2: urlencoded json express

var express = require('express')

var app = express()

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

app.post('/profile', function (req, res, next) {
  console.log(req.body)
  res.json(req.body)
})

Example 3: express js post request body

const express = require('express')

const app = express()

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

app.post('/profile', function (req, res, next) {
  console.log(req.body)
  res.json(req.body)
})

Example 4: express req body

app.post('/login', (req, res) => {
  console.log(req.body.email) // "[email protected]"
  console.log(req.body.password) // "helloworld"
})

Example 5: expressjs req.body.parameters

app.get('/user/:id', (req, res) => {
  console.log(req.params.id) // "1234562134654"
})
or
app.get('/user/:user_id', (req, res) => {
  console.log(req.params.user_id) // "1234562134654"
})