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Backbone data persistence through Redis pub/sub and Socket.io

branch: master
README.md

Backbone Redis

Technologies

  • Node
  • Express
  • Backbone
  • Socket.io
  • Redis

Installation

The project can be installed via NPM, or by cloning this repo into your project.

npm install backbone-redis

or

git clone git://github.com/sorensen/backbone-redis.git

Server Configuration

var express    = require('express'),
    Redis      = require('redis'),
    bbRedis    = require('../../'),
    browserify = require('browserify'),
    io         = require('socket.io'),
    server     = module.exports = express.createServer(),
    io         = io.listen(server);

var db  = Redis.createClient(6379, '127.0.0.1'),
    pub = Redis.createClient(6379, '127.0.0.1'),
    sub = Redis.createClient(6379, '127.0.0.1')

bbRedis.config({
    io        : io,
    database  : db,
    publish   : pub,
    subscribe : sub,
    listener  : 'backbone',
});

server.listen(8080);

You can also create schemas for your models, which will have hookable methods for you to intercept the data. The hookable methods are create, read, update, delete, subscribe, and unsubscribe, each with both pre and post methods attached.

var fooSchema = bbRedis.schema();

fooSchema
    .pre('create', function(next, model, options, cb) {
        next(model, options, cb);
    })
    .post('create', function(next, model, options, cb) {
        next(model, options, cb);
    });
    .pre('subscribe', function(next, socket, options, cb) {
        next(socket, options, cb);
    })
    .post('subscribe', function(next, socket, options, cb) {
        next(socket, options, cb);
    });

bbRedis.model('foo', fooSchema);

Just be sure the name you give for the schema matches the type attribute that you set on the Backbone model.

Client Configuration

<script src='/socket.io/socket.io.js'></script>
<script src="/underscore.js"></script>
<script src="/backbone.js"></script>

If you have cloned the repo, just serve the file. Otherwise you can expose it to the client using browserify.

<script src="/backbone.redis.js"></script>

var socket = io.connect();

bbRedis.config({
    io : socket,
    listener : 'message'
});

var Foo = Backbone.Model.extend({
    url  : 'foos',
    type : 'foo',
    sync : _.sync
});

var FooList = Backbone.Collection.extend({
    model: Todo,
    url  : 'todos',
    type : 'todo',
    sync : _.sync
});

Now that there is something to work with, we can use all of the default Backbone methods

FooList.fetch();
FooList.subscribe({}, function(){
    FooList.create({
        data : 'lorem ipsum'
    })
    FooList.unsubscribe();
});
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