Real-Time Web Applications with ASP.NET WebAPI and SignalR

Leverage the Web – build Web APIs

ASP.NET Web API A framework for creating HTTP services that can reach a broad range of clients including browsers and mobile devices

features  First class modern HTTP  Available as NuGet packages programming model  Great templates and tooling in  Easily map resources to URIs 2012.2 release, like help pages  Content negotiation  Fully open source  Request validation  Flexible hosting  Lightweight  .NET 4+

ASP.NET Web API OData Components for implementing OData services Model builders, formatters (Atom/JSON/XML), path and query parsers, LINQ expression generator, etc Support common patterns using an open protocol Ex. query, paging, relationships, metadata Built on ODataLib Same underpinnings as WCF Data Services Open source and accepting contributions http://aspnetwebstack.codeplex.com

Three Steps to Get Started Create your EDM ODataConventionModelBuilder modelBuilder = new ODataConventionModelBuilder(); modelBuilder.EntitySet<Movie>("Movies"); IEdmModel model = modelBuilder.GetEdmModel(); Configure your OData Route config.Routes.MapODataRoute(routeName: "OData", routePrefix: "odata", model: model); Implement an OData Controller public class MoviesController : EntitySetController<Movie, int> {...}

Data Model for OData The ASP.NET Web API core runtime has no data model Objects formatted to/from opaque blobs by formatters OData is based on the Entity Data Model (EDM) Entity sets, entities, relationships, complex types, actions, functions Having a data model means the framework can do more for you Provide metadata, setup routes, rich link generation, query, paging Your OData EDM can be different from your EF EDM

Query Support [Queryable] action filter enables OData query support Can be used independent of the format ODataQueryOptions provides the parsed query AST Apply the query to an IQueryable Translate the Abstract Syntax Tree to your query mechanism of choice Query validation Restrict supported query options, functions, expression operators, queryable properties, etc. Paging Set PageSize to your desired max page size

what’s next?  Security with OAuth2, JWT  OData $expand, $select  Odata scaffolding for templates  SignalR integration  CORS, JSONP

what is it? SignalR : Incredibly simple real-time for ASP.NET  Automatic protocol negotiation Simplicity Reach Performance

where are we? github.com/SignalR/SignalR 1.0 RTW with ASP.NET 2012.2

clients Today Future?  jQuery  Pure JavaScript (no jQuery)  .NET 4.0+  C++ (Windows Store & Embedded)  Silverlight 5  MonoTouch/MonoDroid  Windows Phone 8  Objective C  .NET for Windows Store apps  Java  …

what’s next?  Monthly point releases  More documentation and samples  More templates and scaffolding  Scale out  Service Bus  SQL Server  Redis

get ASP.NET and Web Tools 2012.2 www.asp.net/vnext

links Knockout.js http://knockoutjs.com Bootstrap http://twitter.github.com/bootstrap/ OData Security Guidance for Web API http://www.asp.net/web-api/overview/odata-support-in-aspnet-web-api/odata-security-guidance

questions? Jim Wang @turanuk jim.wang@microsoft.com

Real-Time Web Applications with ASP.NET WebAPI and SignalR

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