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Enterprise & Mobile Web BackboneConf - August 2013 - @davewasmer

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WARNING

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#notsexy

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#actualrevenue

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Back Story Modularity Caching Offline Security

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Postgres Rails API Client (Backbone) Basic Backbone Stack

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Typical Enterprise Stack Salesforce SAP Sharepoint Splun k WebSphere Drupal Active Directory MobileIron VMwar e

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Mobile CRM Accounting ERP Call Center E

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CRM Accounting ERP Call Center E backbone- associations memento marionette requirejs deep-model backbone-sap

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Back Story Modularity Caching Offline Security

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Backbone View

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var Account = Backbone.Model.extend({...}) ! becomes var Account = Kinvey.Backbone.Model.extend({...})

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Kinvey.Backbone.Model = Backbone.Model.extend(ModelMixin);

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Kinvey.Backbone.ModelMixin = _.extend({}, SyncMixin, {...})

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var BlogPost = Backbone.AssociatedModel.extend({ ! relations: [ { type: Backbone.Many, key: 'comments', relatedModel: BlogPostComment } ] ! });

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var BlogPost = Backbone.AssociatedModel.extend({ ! goto: function() { Router.navigate(“posts/” + this.id); }, ! // relations ... });

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var BlogPost = Backbone.AssociatedModel.extend({ ! goto: function() { Router.navigate(_.result(this, ‘getResourceUrl’)); }, ! getResourceUrl: function() { return “posts/” + this.id; }, ! // relations ... ! });

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var BaseModel = Backbone.AssociatedModel.extend({ ! goto: function() { Router.navigate(_.result(this, ‘getResourceUrl’)); }, ! getResourceUrl: function() { throw new Error(‘no resource url given’); } ! }); ! var BlogPost = BaseModel.extend({ ! // relations ...

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var Author = BaseModel.extend({ ! // ... ! });

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var BaseModel = Backbone.AssociatedModel.extend({

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var BlogPost = Backbone.AssociatedModel.extend({ ! // relations ... ! }); ! var ResourceRoutingMixin = { goto: function() { Router.navigate(_.result(this, ‘getResourceUrl’)); }, getResourceUrl: function() { throw new Error(‘no resource url given’); } } _.extend(BlogPost.prototype, ResourceRoutingMixin);

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Back Story Modularity Caching Offline Security

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Back Story Modularity Caching Offline Security

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var db; ! var openRequest = indexedDB.open('cachedb'); ! openRequest.onsuccess = function(e) { db = openRequest.result; }

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var CachableModel = Backbone.Model.extend({ ! name: 'books' ! fetch: function(options) { // ... read from cache } ! });

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fetch: function(options) { if (options.useCache) { var transaction = db.transaction(this.name); var store = transaction.objectStore(this.name); var query = store.get(this.id); query.onsuccess = function(e) { this.set(query.result); options.success(this, null, options); } Backbone.Model.prototype.fetch.apply(this, arguments); } }

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fetch: function(options) { if (options.useCache) { var transaction = db.transaction(this.name); var store = transaction.objectStore(this.name); var query = store.get(this.id); query.onsuccess = function(e) { this.set(query.result); options.success(this, null, options); } Backbone.Model.prototype.fetch.apply(this, arguments); } }

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fetch: function(options) { if (options.useCache) { var transaction = db.transaction(this.name); var store = transaction.objectStore(this.name); var query = store.get(this.id); query.onsuccess = function(e) { this.set(query.result); options.success(this, null, options); } Backbone.Model.prototype.fetch.apply(this, arguments); } }

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fetch: function(options) { if (options.useCache) { var transaction = db.transaction(this.name); var store = transaction.objectStore(this.name); var query = store.get(this.id); query.onsuccess = function(e) { this.set(query.result); options.success(this, null, options); } Backbone.Model.prototype.fetch.apply(this, arguments); } }

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Back Story Modularity Caching Offline Security

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save: function(data, options) { this.set(data, options); if (!navigator.onLine) { // write to local } else { // write to server } }

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save: function(data, options) { this.set(data, options); if (!navigator.onLine) { var transaction = db.transaction(this.name, 'readwrite'); var store = transaction.objectStore(this.name); var insert = store.put(this.attributes); insert.onsuccess = options.success; } else { // write to server } }

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save: function(data, options) { this.set(data, options); if (!navigator.onLine) { var transaction = db.transaction(this.name, 'readwrite'); var store = transaction.objectStore(this.name); var insert = store.put(this.attributes); insert.onsuccess = options.success; ! var toSave = transaction.objectStore('to-save'); var tracker = toSave.put({id: this.id, name: this.name}); ! } else { // write to server } }

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save: function(data, options) { this.set(data, options); if (!navigator.onLine) { var transaction = db.transaction(this.name, 'readwrite'); var store = transaction.objectStore(this.name); var insert = store.put(this.attributes); insert.onsuccess = options.success; ! var toSave = transaction.objectStore('to-save'); var tracker = toSave.put({id: this.id, name: this.name}); tracker.onsuccess = ?  ! } else { // write to server } }

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success = _.after(options.success, 2);  ! var transaction = db.transaction(this.name, 'readwrite'); var store = transaction.objectStore(this.name); var insert = store.put(this.attributes); insert.onsuccess = success; ! var toSave = transaction.objectStore('to-save'); var tracker = toSave.put({id: this.id, name: this.name}); tracker.onsuccess = success;

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var sync = function() { var toSave = db.transaction('to-save').objectStore('to-save') toSave.openCursor().onsuccess = function(event) { var cursor = event.target.result; if (cursor) { save(cursor.value); cursor.continue(); } else { console.log('all done!'); } } }

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var save = function(lookup) { var id = lookup.id, name = lookup.name; var store = db.transaction(name).objectStore(name); ! store.get(id).onsuccess = function(event) { record = event.target.result; fetch({name: name, record: record}) .then(function(serverCopy) { if (serverCopy.last_modified > record.last_modified) { resolveConflict({ server: serverCopy, client: record }); } }); } }

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Back Story Modularity Caching Offline Security

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Thanks! Hat tip to: Shubang Mani @bhangm Ryan Kahn @myztiq Morgan Bickle @morganbic

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Bonus Round

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Existing infrastructure

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Decoupling