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studiomagnolia.com Cesare Rocchi Choosing a backend for your mobile application _funkyboy Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Outline •Needs when choosing a backend •Features •Overview of different approaches Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Who am I? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 UX designer and developer Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 mnml Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 < is > Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 execution matters Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 lean approach Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Who are you? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Quick version Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 It’s complicated Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Thank you! Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •twitter.com/_funkyboy •app.net/funkyboy •[email protected] •http://studiomagnolia.com Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 App Target •Not apps where mobile is “just a view” •Apps which are inherently mobile •Personal usage •Backup or synchronization Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Examples Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 dayoneapp.com Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 culturedcode.com/things Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 iawriter.com Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Questions Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Have I to manage it? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Have I to manage it? •At which level? •Am I able to do it? •Have I time to learn? •Is it worth it? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 What’s the synch model? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 What’s the synch model? •Does it match my goals? •Can I change it if needed? •What about protocols? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Have I to pay? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Have I to pay? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Who is to pay? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Impact on UX? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Impact on UX? •Does it break any flow? •How frequently? •is it “ok” with that? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security? •How data are transferred? •Is encryption implemented? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Options •iCloud •Dropbox •Parse & co. •Custom Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 What is iCloud? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 6028 Startown Rd, Maiden, NC Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Stores and synchs stuff Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 It just works ... Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 ... when it works. Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 seamlessness can be a limit Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Questions •Have I to manage it? •What’s the synch model? •Who’s to pay? •Impact on UX? •Security? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Have I to manage it? •Learn the API •Apple takes care of •installation •scalability •security Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 What’s the synch model? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Daemon •Monitors changes •Works on metadata •Shreds files •Supports conflict resolution Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Special folder, synched Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Synched when “appropriate” Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Appropriate •Which OS? •Which connection? •Battery status? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Types of Information •Key-value •Documents •CoreData Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Who’s to pay? •The final user •Your app will use his quota •5Gb for free Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Impact on UX? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Impact on UX? •User expectation •No control on upload •“Why isn’t there?” •Open the app to synch •User turns off iCloud? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security http://support.apple.com/kb/HT4865?viewlocale=en_US&locale=en_US Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security •Using the same API •Mostly safe •But ... Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security •Using the same API •Mostly safe •But ... Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Notes •> iOS5 “Documents” folder is backed up •You can prevent files from being backed up •App might be rejected https://developer.apple.com/library/ios/#qa/qa1719/_index.html Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Dropbox Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Dropbox •File-based •Special folder •Synchronized across devices •Supports other platforms Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Have I to manage it? •Already set up •installation •bandwidth •scalability Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 What’s the synch model? •Desktop synchronizes continuously •Mobile apps have to query the backend •HTTP API •SDKs for iOS, Android, Ruby, Python Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 What’s the synch model? •No conflict resolution (revision #) •Data serialization is up to you •No file shredding Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Who’s to pay? •The final user •Your app will use his disk quota •2 Gb for free Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Impact on UX? •Authentication the first time •User might modify files •Control on the upload Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security https://www.dropbox.com/help/27/en Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security •Https required •3rd party apps are “sandboxed” •Apps are reviewed Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Similar •box.net •sugarsync.com •google drive •amazon S3 Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Parse Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Parse •Backend for mobile apps •Files, key-value •API for iOS, Android, Javascript and REST •Push notifications Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Parse •User management •account creation/verification •Login with Twitter/Facebook •ACL Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Have I to manage it? •Just learn the API •Parse takes care of •Installation •Bandwidth •Scalability Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 What’s the synch model? •ORM approach on steroids •No need to serialize/deserialize Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 steroids? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 PFObject *note = [PFObject objectWithClassName:@"Note"]; [note setObject:@"Ciao" forKey:@"title"]; [note setObject:@"Note on Parse" forKey:@"content"]; [note save]; //[note saveInBackground]; //[note saveInBackgroundWithBlock:^( ){ }]; //[note saveEventually]; <- steroids Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 PFObject *note = [PFObject objectWithClassName:@"Note"]; [note setObject:@"Ciao" forKey:@"title"]; [note setObject:@"Note on parse" forKey:@"content"]; PFObject *myTag = [PFObject objectWithClassName:@"Tag"]; [myTag setObject:@"important" forKey:@"tagName"]; // Add a relation [note setObject:myTag forKey:@"tag"]; // Saves both [note saveInBackground]; Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Who’s to pay? •You •Pay as you use •Limit of calls/mo Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Who’s to pay? •You •Pay as you use •Limit of calls/mo Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Security •Uses SSL to transmit •ACL is up to you •DBs are snapshotted every 30min •You own data Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Similar services •cloudmine.me •stackmob.com •kinvey.com •buddy.com Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Custom Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 IaaS PaaS SaaS Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •Data •Application •Runtime •Middleware •OS •Data •Application IaaS PaaS SaaS Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •Data •Application IaaS PaaS SaaS •Data •Application •Runtime •Middleware •OS Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •Data •Application IaaS PaaS •Data •Application •Runtime •Middleware •OS Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •Data •Application PaaS Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 PaaS Questions •Which language? •Which DB? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Heroku Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Languages •Ruby •Python •Java •Scala •Closure •Node.js Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 DBs •Postgres •MySQL (via addon) •MongoDB (via addon) Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Dyno •Essentially a process •Web •Worker •# of dynos + db profile + addons = backend cost Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •OS •Middleware •Runtime •Data •Application •Data •Application IaaS PaaS Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •OS •Middleware •Runtime •Data •Application IaaS Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Questions •Which OS? •Which language? •Which DB? •How many machines? Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Amazon Web Services Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Amazon Web Services •CDN •Storage •Networking •DBs •Services: email, queue managers Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Good old way •Buy a server •pick the hardware •install OS •rent space/bandwidth in a farm Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Server side frameworks Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Ruby •http://rubyonrails.org •http://www.sinatrarb.com •http://www.padrinorb.com Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Python •https://www.djangoproject.com •http://www.pylonsproject.org •http://flask.pocoo.org Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Node.js •http://expressjs.com •http://geddyjs.org •http://flatironjs.org •http://railwayjs.com •http://towerjs.org Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 ORM •ActiveRecord •DataMapper •Sequel •SQLAlchemy Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Client side frameworks Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Networking •AFNetworking •MKNetworkKit •RestKit •DataKit Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 To have a cake ... Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Use a box mix •Choose between flavors •Add basic ingredients •Bake Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Do it from scratch •Choose all the elements •Preparation •Bake Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 In conclusion ... Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 “You can’t always get what you want but if you try sometime, you just might find ...” Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 Rolling Stones “You can’t always get what you want but if you try sometime, you just might find ...” Tuesday, September 11, 12

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SWIPE CONFERENCE 2012 •twitter.com/_funkyboy •app.net/funkyboy •http://studiomagnolia.com •http://www.icloudfordevelopers.com Tuesday, September 11, 12