Flash message middleware for Connect based on connect-flash
npm install connect-flash-plusThe flash is a special area of the session used for storing messages. Messages
are written to the flash and cleared after being displayed to the user. The
flash is typically used in combination with redirects, ensuring that the message
is available to the next page that is to be rendered.
This middleware was extracted from Express 2.x, after
Express 3.x removed direct support for the flash. connect-flash brings this
functionality back to Express 3.x, as well as any other middleware-compatible
framework or application. +1 for radical reusability.
connect-flash-plus is a fork of the original connect-flash module but it contains
several pull request the orginal repo still has not accepted.
$ npm install connect-flash-plus
#### Express 4.x
Flash messages are stored in the session. First, setup sessions by enablingsession middleware. Then, use flash middleware provided by connect-flash.
``javascript
var express = require('express');
var flash = require('connect-flash-plus');
var session = require('express-session');
var app = express();
app.use(session({
secret: 'keyboard cat',
cookie: { maxAge: 60000 }
}));
app.use(flash());
`
With the flash middleware in place, all requests will have a req.flash() function
that can be used for flash messages.
`javascript
app.get('/flash', function(req, res){
// Set a flash message by passing the key, followed by the value, to req.flash().
req.flash('info', 'Flash is back!')
res.redirect('/');
});
app.get('/', function(req, res){
// Get an array of flash messages by passing the key to req.flash()
res.render('index', { messages: req.flash('info') });
});
``
For an example using connect-flash-plus in an Express 4.x app, refer to the express4
example.
For an example using connect-flash-plus in an Express 3.x app, refer to the express3
example.
$ npm install --dev
$ make test
- Martin Kadlec
- Jared Hanson
- TJ Holowaychuk
Copyright (c) 2012-2013 Jared Hanson <http://jaredhanson.net/>