add-flash

Add Flash

About

add-flash is an extened middleware of express-flash

• express-flash use the key-value style flash messages
• add-flash use array style flash messages

So, templates don't need to know what's in the flashes and can print directly.

Installation

npm install add-flash

Usage

Requirements

  var express = require('express');
  var app = express();
  var flash = require('express-flash');
  var session = require('express-session'); 
  var cookieParser = require('cookie-parser');

  app.use(cookieParser('keyboard cat'));
  app.use(session({ cookie: { maxAge: 60000 }}));
  app.use(flash());

Add Flash middleware

  var add_flash = require('add-flash'); 
  app.use(add_flash());

Use req.add_flash() in your middleware

  app.get('/', function (req, res) {
    req.add_flash('info', 'Hello! This is flash from current request.');
    res.render('index', {
      title: 'Home'
    })
  });
  app.get('/addFlash', function (req, res) {
    req.add_flash('success', 'Hello! This is flash from redirected request.');
    res.redirect('/');
  });

Access the messages in your views via locals.flashes (swig template engine in this case):

  <div id="flashes">
    {% if flashes %}
        {% for flash in flashes %}
            <div class="alert alert-{{flash.type}}">{{flash.message}}</div>
        {% endfor %}
    {% endif %}
  </div>

API

req.add_flash(type, message);

type - Flash message type to use in css class. Can use bootstrap css alert types.
message - Flash message body

Requires

• express-flash
• cookieParser
• session