Xamarin Dev Days 2017 - Connected & disconnected apps with Azure Mobile Apps
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Session #3 at the Xamarin DevDays 2017. I spoke about how to create a backend for your mobile apps using Azure Mobile Apps.
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Xamarin Dev Days 2017 - Connected & disconnected apps with Azure Mobile Apps
- 13. Content Delivery Network (CDN) Media Services HDInsight Machine Learning Stream Analytics Data Factory Event Hubs Mobile Engagement Biztalk Services Hybrid Connections Service Bus Storage Queues Backup StorSimple Site Recovery Import/Export SQL Database DocumentDB Redis Cache Search Tables SQL Data Warehouse Azure AD Connect Health AD Privileged Identity Mngt Operational Insights Cloud Services Batch Remote App Service Fabric Visual Studio Application Insights Azure SDK Team Project Active Directory Multi-Factor Authentication Automation Portal Key Vault Store / Marketplace VM Image Gallery & VM Depot SECURITY & MANAGEMENT PLATFORM SERVICES HYBRID OPERATIONS Web Apps Mobile Apps API Management API Apps Logic Apps Notification Hubs
- 14. Web Apps Logic Apps Mobile Apps API Apps Customer site Administration App Order Completed Customer App
- 16. 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
- 17. Shared C# codebase • 100% native API access • High performance iOS C# UI Windows C# UIAndroid C# UI Shared C# Mobile C# Server Shared C# Client/Server C#
- 18. Shared C# codebase • 100% native API access • High performance iOS C# UI Windows C# UIAndroid C# UI Shared C# Mobile Node.JS Server Shared C# Client/Server JavaScript Easy
- 20. Create a Mobile Service MobileService = new MobileServiceClient( "https://myapp.azurewebsites.net");
- 21. Create tables (online) IMobileServiceTable<TodoItem> table; public async Task Init() { table = MobileService.GetTable<TodoItem>(); }
- 22. Create tables (offline) IMobileServiceSyncTable<TodoItem> syncTable; public async Task Init() { const string path = "syncstore.db"; var db = new MobileServiceSQLiteStore(path); db.DefineTable<TodoItem>(); } var handler = new MobileServicesSyncHandler(); 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
- 34. Lunch! Guy Barrette Freelance architect/dev Microsoft Azure MVP guy@guybarrette.com http://guy.cloud @GuyBarrette
Editor's Notes
- 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)
- 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!
- 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!
- 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
- Get started today with free 30 day trial of Xamarin at xamarin.com