gabifs/index.js

## index.js
/*
description:
A simple http server, with a POST route that creates a txt file.
*/
'use strict'
const http = require('http')
const fs = require('fs')
const HOSTNAME = 'localhost'
const PORT = 3000

const server = http.createServer(requestHandler)

server.listen(PORT, HOSTNAME, () => {
  console.log(`Listening into: http://${ HOSTNAME }:${ PORT }/`)
})

function requestHandler(request, response){
  const  { url, method }  = request

  const routes = {
    "GET":{
      "/": function(req, res) {
        res.setHeader('Content-Type', 'text/html')
        res.write('<html>')
        res.write('<head><title>Enter Message</title><head>')
        res.write(
          '<body><form action="/add-message" method="POST"><input type="text" name="message"><button type="submit">Send</button></form></body>'
          );
        res.write('</html>')
        console.log('-route "/" acessed!-')
        return res.end()
      }
    },
    "POST":{
      "/add-message": function(req, res){
        const body = []
        req.on('data', chunk => {
          console.log(chunk)
          body.push(chunk)
        });
        return req.on('end', () => {
          const parsedBody = Buffer.concat(body).toString()
          const message = parsedBody.split('=')[1]
          fs.writeFile('message.txt', message, err => {
            res.statusCode = 302
            res.setHeader('Location', '/')
            console.log('-route "/add-message" acessed!-')
            return res.end()
          });
        });
      }
    }
  }

  function inexistentUrl(req, res){
    res.setHeader('Content-Type', 'text/html')
    res.statusCode = 404
    res.write('<html>')
    res.write('<head><title> Page not found </title><head>')
    res.write(
      '<body><h1>Page not found</h1></body>'
      );
    res.write('</html>')
    console.log(`-page not found! url: ${url}`)
    return res.end()
  }

  const responseFunction = routes[method][url] || inexistentUrl
  responseFunction(request, response)

}

## package.json
{
  "name": "simple-node-server",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "node index.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "git+ssh://git@gist.github.com/0fbdb3beb753d46b8483052772a62365.git"
  },
  "keywords": [],
  "author": "gfsilva",
  "license": "ISC",
  "bugs": {
    "url": "https://gist.github.com/0fbdb3beb753d46b8483052772a62365"
  },
  "homepage": "https://gist.github.com/0fbdb3beb753d46b8483052772a62365"
}
	/*
	description:
	A simple http server, with a POST route that creates a txt file.
	*/
	'use strict'
	const http = require('http')
	const fs = require('fs')
	const HOSTNAME = 'localhost'
	const PORT = 3000

	const server = http.createServer(requestHandler)

	server.listen(PORT, HOSTNAME, () => {
	console.log(`Listening into: http://${ HOSTNAME }:${ PORT }/`)
	})

	function requestHandler(request, response){
	const { url, method } = request

	const routes = {
	"GET":{
	"/": function(req, res) {
	res.setHeader('Content-Type', 'text/html')
	res.write('<html>')
	res.write('<head><title>Enter Message</title><head>')
	res.write(
	'<body><form action="/add-message" method="POST"><input type="text" name="message"><button type="submit">Send</button></form></body>'
	);
	res.write('</html>')
	console.log('-route "/" acessed!-')
	return res.end()
	}
	},
	"POST":{
	"/add-message": function(req, res){
	const body = []
	req.on('data', chunk => {
	console.log(chunk)
	body.push(chunk)
	});
	return req.on('end', () => {
	const parsedBody = Buffer.concat(body).toString()
	const message = parsedBody.split('=')[1]
	fs.writeFile('message.txt', message, err => {
	res.statusCode = 302
	res.setHeader('Location', '/')
	console.log('-route "/add-message" acessed!-')
	return res.end()
	});
	});
	}
	}
	}

	function inexistentUrl(req, res){
	res.setHeader('Content-Type', 'text/html')
	res.statusCode = 404
	res.write('<html>')
	res.write('<head><title> Page not found </title><head>')
	res.write(
	'<body><h1>Page not found</h1></body>'
	);
	res.write('</html>')
	console.log(`-page not found! url: ${url}`)
	return res.end()
	}

	const responseFunction = routes[method][url] \|\| inexistentUrl
	responseFunction(request, response)

	}
	{
	"name": "simple-node-server",
	"version": "1.0.0",
	"description": "",
	"main": "index.js",
	"scripts": {
	"start": "node index.js",
	"test": "echo \"Error: no test specified\" && exit 1"
	},
	"repository": {
	"type": "git",
	"url": "git+ssh://git@gist.github.com/0fbdb3beb753d46b8483052772a62365.git"
	},
	"keywords": [],
	"author": "gfsilva",
	"license": "ISC",
	"bugs": {
	"url": "https://gist.github.com/0fbdb3beb753d46b8483052772a62365"
	},
	"homepage": "https://gist.github.com/0fbdb3beb753d46b8483052772a62365"
	}