NodeJS and Express : How to print all the parameters passed in GET and POST request

I want to log all the query parameters which are passed to my endpoint. whenever they call me ie through GET , POST. i am able to print all the GET query params but struggling with POST params.

i used req.body but that doesnt work it just prints [Object object] even JSON.stringify didnt help.

Can any one point me to right source to look for it

So POST parameters arrive in the HTTP request body, and this is handled as a stream of data chunks by node.js. So the first thing you must do is make sure you assemble the stream of chunks into a complete piece of data. Then you may want to parse it as either url encoded or JSON if that's what it is. The standard middleware for this is body-parser. You set it up like they say in the README:

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

var app = express()

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

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

// parse application/vnd.api+json as json
app.use(bodyParser.json({ type: 'application/vnd.api+json' }))

app.use(function (req, res, next) {
  console.log(req.body) // populated!
  next()
})