Xamarin devdays 2017 - PT - connected apps
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A session explain how Azure APPS can be used as a way to create better apps
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Xamarin devdays 2017 - PT - connected apps
- 3. Windows Platform Development Microsoft MVP Microsoft Windows DevCamp Trainer Windows Insider CTO @ Innovagency Software Dev/Arch as Independent Technical Trainer and Speaker as Independent Teacher @ EDIT Contacts @alexmarreiros amarreiros@gmail.com Digitalmindignition.com innovagency.com
- 10. Cloud Connected WebAPP “A cloud connected mobile application is a mobile client that connects to a mobile backend for shared services. Quite a few of the apps on your phone are cloud connected already. For example, Instagram uses the cloud for photo storage, and Facebook uses the cloud to store the news feeds of you and your friends.”
- 17. websites, mobile app back ends, RESTful APIs, and business processes
- 18. RESTAPI Offline sync Facebook Twitter Microsoft Google Azure Active Directory Azure Mobile Apps WindowsAndroid Chrome iOS OSX In-AppKindle Backend code SQL MongoTables O365 API Apps Offline Sync
- 19. Azure Mobile Apps Multiple languages and frameworks - App Service has first-class support for ASP.NET, Node.js, Java, PHP, and Python DevOps optimization - Set up continuous integration and deployment with Visual Studio Team Services, GitHub, or BitBucket. Promote updates through test and staging environments. Perform A/B testing.
- 21. Create a Mobile Service MobileService = new MobileServiceClient( "https://myapp.azurewebsites.net");
- 22. Create tables IMobileServiceSyncTable<TodoItem> syncTable; public async Task Init() { const string path = "syncstore.db"; var db = new MobileServiceSQLiteStore(path); db.DefineTable<TodoItem>(); } await MobileService.SyncContext.InitializeAsync(db); syncTable = MobileService.GetSyncTable<TodoItem>();
- 23. Push and pull with sync table private async Task SyncAsync() { await MobileService.SyncContext.PushAsync(); var query = syncTable.CreateQuery(); await syncTable.PullAsync("todoItems", query); } private async Task InsertTodoItem(TodoItem todoItem) { await syncTable.InsertAsync(todoItem); await MobileService.SyncContext.PushAsync(); }
- 24. Query local table public async Task<IEnumerable<TodoItem>> GetOpenItemsAsync() { return await todoTable .Where(item => item.Complete == false) .ToEnumerableAsync(); }
- 27. Notification Hub • Maps between tags and handles 1. Get PNS handle 4. Send to device 2. Store PNS handle 3b. Request notification Use device handles 3a. Request notification Use logical users/tags 5. Manage device handles
- 29. Shopping Demo App Azure Services: • Cognitive Services (Emotion API) • Storage • On/offline sync • Push notifications • Authentication What’s Available: • Complete sample app with documentation • Individual “quick starts” github.com/Microsoft/XamarinAzure_ShoppingDemoApp
- 30. Shared C# codebase • 100% native API access • High performance iOS C# UI Windows C# UIAndroid C# UI Shared C# Mobile C# Server Linux/Mono CoreCLRAzure Shared C# Client/Server
- 34. Thanks! Alexandre Marreiros amarreiros@gmail.com Digitlmindignition.com @alexmarreiros
Hinweis der Redaktion
- And you get all the goodness shown in the previous slides across the WW
- Extremely powerful You can do almost anything your backend would ever need to do with Azure. Data storage, authentication/authorization, push notifications, custom APIs, blob storage, etc. Flexible Need something lightweight? Azure is there. Need something robust and powerful? Azure is there. C# clients I’m a frontend developer, I care a lot about how easy this makes MY job (selfish) Many C# clients are written by Java developers, etc. Easy to use C# client Abstracts away much of pain of using a RESTful API C# Features Async / Await / TPL Uses C# idioms Properties, Fluent API Seems obvious, but not always true (first class citizen)
- What if a GetAll should only return favorites for that user.
- Backend deletes expired handles when PNS rejects them Maintain mapping between logical users/groups and device handles
- With Xamarin it just isn’t your front end in C# it is your full backend server as well. With Azure or even on Linux running Mono or the CoreCLR your app is fully C# end to end!
- Get started today with free 30 day trial of Xamarin at xamarin.com