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Let us know how you feel about this session! Give your feedback via www.techdaysapp.nl and possibly win one of the 20 prizes*. Winners will be announced via Twitter (#TechDaysNL). Use your personal code on your badge.
* Over de uitslag kan niet worden gecorrespondeerd, prijzen zijn voorbeelden – All results are final, prizes are examples
Building Mobile Apps with a Mobile Services .NET BackendSasha GoldshteinCTO, Sela GroupMicrosoft C# MVP, Azure MRS, Azure Insiderblog.sashag.net@goldshtn
Who are we?App developers
What do we hate?Backends
Azure Mobile Services is a backend for your mobile apps
… that has a free tier… and cloud scale… and support for all mobile platforms
This talk will focus on the .NET backend and the C# clients
… the Node.js backend with iOS/Android clients was discussed earlier today
Platforms and FeaturesPlatforms (client libraries)•Windows Phone•Windows 8• Xamarin• iOS• Android• HTML/JavaScript• PhoneGap
Features• Data and queries• Push notifications• Authentication• Data access customization• Custom API• Offline sync• Mass push• Remote debugging• Local deployment for testing
System Diagram
Microsoft Azure
SQL Databas
e
ASP.NET Web API backend
Microsoft Push
Notification Service
Facebook Auth
Provider
Windows Notification
Service
Microsoft Auth Provider
Data Queryvar service = new MobileServiceClient( “http://rentahome.azure-mobile.net/”, “<APPLICATION KEY>”);
var table = service.GetTable<Apartment>();
List<Apartment> apartments = await table.Where(a => a.Rented == false) .ToListAsync();
Authenticationvar user = await service.LoginAsync( MobileAuthenticationProvider.Facebook);
Client-Side Push Registrationvar channel = await PushNotificationChannelManager. CreatePushNotificationChannelForApplicationAsync();
await service.GetPush() .RegisterNativeAsync(channel.Uri);
Visual Studio Support
Server-Side Pushpublic async Task<IHTTPActionResult> PostApartment( Apartment apartment){ var inserted = await InsertAsync(apartment); var push = new ApplePushMessage( “Added apartment at ” + apartment.Address, null); await Services.Push.SendAsync(push); return CreatedAtRoute(“Tables”, new { id = inserted.Id }, inserted);}
Server-Side Authorization[RequiresAuthorization(AuthorizationLevel.User)]public async Task<IHTTPActionResult> PostApartment( Apartment apartment){ var inserted = await InsertAsync(apartment); return CreatedAtRoute(“Tables”, new { id = inserted.Id }, inserted);}
DemoBuilding the “Rent a Home”Windows Store Appwith the Mobile Services .NET Backend
Offline Sync SupportCurrently in Preview, only for Windows Store appsUses SQLite backing storeManual push and pull, no auto-syncConflict detection and management
Preparing Data Model for OfflineSync Supportpublic class Apartment{ public string Id { get; set; } public bool Rented { get; set; } public string Address { get; set; } public uint Bedrooms { get; set; } [Version] public string Version { get; set; }}
Initializing Sync Table and Storevar table = service.GetSyncTable<Apartment>();if (!service.SyncContext.IsInitialized){ var store = new MobileServiceSQLiteStore(“my.db”); store.DefineTable<Apartment>() await service.SyncContext.InitializeAsync(store, new MobileServiceSyncHandler());}
Pull and Push// May throw if there is a connection problemawait table.PullAsync();var list = await table.OrderBy(a => a.Bedrooms) .ToListAsync();
table.Insert(new Apartment(...));// May throw if there is a connection problem// or a conflict, cf. MobileServicePushFailedExceptionservice.SyncContext.PushAsync();
DemoAdding Offline Sync Support
Questions?Sasha Goldshteinblog.sashag.net@goldshtn
Laat ons weten wat u vindt van deze sessie! Vul de evaluatie in via www.techdaysapp.nl en maak kans op een van de 20 prijzen*. Prijswinnaars worden bekend gemaakt via Twitter (#TechDaysNL). Gebruik hiervoor de code op uw badge.
Let us know how you feel about this session! Give your feedback via www.techdaysapp.nl and possibly win one of the 20 prizes*. Winners will be announced via Twitter (#TechDaysNL). Use your personal code on your badge.
* Over de uitslag kan niet worden gecorrespondeerd, prijzen zijn voorbeelden – All results are final, prizes are examples
