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Presentation from TechDays Netherlands 2014 on using the newly announced .NET backend for Azure Mobile Services to build mobile applications, and on using the Offline Sync preview in Windows Store apps.
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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
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
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