The document discusses how to build mobile apps that use Azure services for backend functionality like offline sync, push notifications, and authentication. It provides code examples for common tasks like initializing a mobile service client, creating and querying tables, and handling offline sync. Key Azure services highlighted include Mobile Apps, Notification Hubs, Cognitive Services, Storage, and Authentication. A sample shopping app is also referenced that leverages multiple Azure features and services.

5. opensignal.com/coverage-maps

9. Infrastructure
designed for Scale

11. 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

13. Create a Mobile Service
MobileService = new MobileServiceClient(
"https://myapp.azurewebsites.net");

14. 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>();

15. 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();
}

16. Query local table
public async Task<IEnumerable<TodoItem>> GetOpenItemsAsync()
{
return await todoTable
.Where(item => item.Complete == false)
.ToEnumerableAsync();
}

19. 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

21. 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

22. 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

24. Get started today
xamarin.com/download
xamarin.com/azure
xamarin.com/dev-ops