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Building Rich Client Apps @derrickko
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Hi! @derrickko
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Web Trends
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User experience.
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Real time.
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Multiple clients.
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Derby Meteor Firebase Ember.js Spine.js The Market
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What we use
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Rails Backbone.js XMPP Coffeescript
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Rails Backbone.js XMPP Coffeescript
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Template View Router Model View Controller Controller Model -ish Backbone Rails
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Rails Backbone.js XMPP Coffeescript
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Performant. Mature.
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HTML5 SSE Pusher XMPP Options.
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Rails Backbone.js XMPP Coffeescript
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A productive hybrid.
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Let’s start.
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A list.
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GET /lists/1 { id: 1, name: “Friends”, members: { { name: “Pavel” ... } } }
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Best practices still apply.
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Thin controllers
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RESTful routes.
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Have a presentation layer. Tip
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Don’t use to_json.
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It’s like HTML in models.
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Jbuilder RABL
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http://kicksend.com/#/lists/1/edit
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model = new KS.Models.List(id: 1) model.fetch() # GET api/lists/1 model.save() # PUT api/lists/1 model.destroy() # DELETE api/lists/1
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What’s a collection?
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lists = new KS.Collections.List() lists.fetch() # GET api/lists/ lists.create() # POST api/lists/
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Keep views atomic. Tip
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Load interfaces progressively. Tip
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GET api/lists/1 - 200 OK
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GET api/lists/1/members - 200 OK GET api/lists/possible_members - 200 OK
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Best practices Presentation layer Recap
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Subclass Backbone Atomic views Progressive rendering Recap
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Main Container
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Use a view manager. Tip
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https://gist.github.com/2991554
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Performance.
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GET api/deliveries
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100ms response time.
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Cache aggressively. Tip
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Action caching.
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https://gist.github.com/2990581
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View caching.
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Cached
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Cached
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Photo Photo Sender Sender Action cached View cached GET api/deliveries Delivery
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Photo Photo Sender Sender Delivery belongs_to :delivery, :touch => true
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Perceived performance.
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Assume success. Tip
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Be greedy. Tip
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1. GET /api/lists/2 list.fetch()
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2. GET /api/lists/ KS.lists.fetch()
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Keep data in sync. Tip
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1. GET /api/lists/2 2. GET /api/lists Local Global
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Server performance Perceived performance Recap
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Real time.
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eJabberd
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eJabberd Strophe.js Backbone
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eJabberd Strophe.js Backbone BOSH
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Pre-auth BOSH streams. Tip
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eJabberd Rails RubyBOSH auth
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Backbone eJabberd Rails RubyBOSH auth HTTP
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eJabberd Backbone Strophe.js HTTP Rails RubyBOSH auth BOSH
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github.com/skyfallsin/ruby_bosh
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Use a real time handler. Tip
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strophe.js xml2json Toolbox
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Pre-auth BOSH streams Real time handler Recap
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Moving forward.
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Slimmed down server.
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and CDNs
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require.js
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Don’t over engineer.
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Thanks! @derrickko