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Session with login form in express (express-session)
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| var express = require('express') | |
| var parseurl = require('parseurl') | |
| var session = require('express-session') | |
| var bodyParser = require('body-parser'); | |
| var app = express() | |
| app.use( bodyParser.json() ); // to support JSON-encoded bodies | |
| app.use(bodyParser.urlencoded({ // to support URL-encoded bodies | |
| extended: true | |
| })); | |
| app.use(session({ | |
| secret: 'keyboard cat', | |
| resave: false, | |
| saveUninitialized: true | |
| })) | |
| app.use(function (req, res, next) { | |
| console.log(req.session) | |
| var views = req.session.views | |
| if (!views) { | |
| views = req.session.views = {} | |
| } | |
| // get the url pathname | |
| var pathname = parseurl(req).pathname | |
| // count the views | |
| views[pathname] = (views[pathname] || 0) + 1 | |
| next() | |
| }) | |
| app.get('/foo', function (req, res, next) { | |
| if (!req.session.user) | |
| // do it like this per page with restricted access, or make a middleware to | |
| // always redirect to login | |
| res.redirect('/login') | |
| else | |
| res.send('you viewed this page ' + req.session.views['/foo'] + ' times, ' + | |
| req.session.user.username) | |
| }) | |
| app.get('/bar', function (req, res, next) { | |
| if (!req.session.user) | |
| // do it like this per page with restricted access, or make a middleware to | |
| // always redirect to login | |
| res.redirect('/login') | |
| else | |
| res.send('you viewed this page ' + req.session.views['/bar'] + ' times, ' + | |
| req.session.user.username) | |
| }) | |
| app.get('/login', function(req, res, next) { | |
| if (!req.session.user) { | |
| res.send(` | |
| <html> | |
| <form method="post" action="login"> | |
| <input type=text placeholder="Username" name="username"> | |
| <input type="password" placeholder="Password" name="password"> | |
| <input type="submit" value="submit"> | |
| </form> | |
| </html>`) | |
| } | |
| else { | |
| res.send('You are already logged in, ' + req.session.user.username) | |
| } | |
| }) | |
| /** | |
| * Here is a REST endpoint to get JSON of my user that | |
| * e.g. backbone could consume when rendering | |
| */ | |
| app.get('/me', function(req, res, next) { | |
| if (!req.session.user) | |
| res.status(404).send('Please log in..') | |
| else | |
| res.json(req.session.user) | |
| }) | |
| app.post('/login', function (req, res, next) { | |
| let username = req.body.username | |
| let password = req.body.password | |
| if (!req.session.user) { | |
| // check password then | |
| req.session.user = { | |
| username | |
| } | |
| res.send("Welcome, " + username); | |
| } | |
| else { | |
| res.send("You are logged in already...") | |
| } | |
| }) | |
| app.listen(3000, function() { console.log('Listening on port 3000'); }) |
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