ExpressJS Series: Parsing Request Body using Middlewares

expressjs-body-parser-3-index.js

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

let app = express();

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

const myFirstMiddleware = function(req, res, next) {
  console.log('My logger');
  next();
};

const myRouteMiddleware = function(req, res, next) {
  console.log('My logger ', 'only for ', req.path);
  next();
};

const textParser = bodyParser.text({
  defaultCharset: 'utf8',
  inflate: true
});

const urlEncodedParser = bodyParser.urlencoded({
  extended: true,
  inflate: true
});

app.use(myFirstMiddleware);

app.get('/', function(req, res) {res.status(200).send({status: "running", time: Date.now()})});
/* POST */
app.post('/', textParser, myRouteMiddleware, function(req, res) {res.status(200).send({status: "running", time: Date.now()})});
/* PUT */
app.put('/', urlEncodedParser, function(req, res) {res.status(200).send({status: "running", time: Date.now()})});
/* PATCH */
app.patch('/', function(req, res) {res.status(200).send({status: "running", time: Date.now()})});
/* DELETE */
app.delete('/', function(req, res) {res.status(200).send({status: "running", time: Date.now()})});
/* OPTIONS */
/*
app.options('/', function(req, res) {res.status(200).send({status: "running", time: Date.now()})});
*/
app.post('/api/myform/:categoryId', function(req, res) {
  res.status(200).send({paramValues: req.params.categoryId, queryParamValues: req.query.create + ' ' + req.query.notify});
});

const host = "127.0.0.1";
const port = 9001;
app.listen(host, port, function() {console.log("Server started")});