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Real-Time Web ApplicationsASP.NET WebAPI & SignalRJim Wang
ASP.NET Web API
Jim Wang
How to reach more clients?
Browsers Devices Phones Tablets
? ? ? ?
App
How to make it scale?
Browsers Devices Phones Tablets
App
? ? ? ?
How to keep it simple?
Browsers Devices Phones Tablets
App
? ? ? ?SOAPSOAP
.config
Leverage the Web – build Web APIs
Browsers Devices Phones Tablets
ASP.NET Web APIApp
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 programming model
Easily map resources to URIs
Content negotiation Request validation Flexible hosting Lightweight .NET 4+
Available as NuGet packages
Great templates and tooling in 2012.2 release, like help pages
Fully open source
ASP.NET Web API OData
Components for implementing OData servicesModel builders, formatters (Atom/JSON/XML), path and query parsers, LINQ expression generator, etc
Support common patterns using an open protocolEx. query, paging, relationships, metadata
Built on ODataLibSame underpinnings as WCF Data Services
Open source and accepting contributionshttp://aspnetwebstack.codeplex.com
Three Steps to Get Started
Create your EDM
Configure your OData Route
Implement an OData Controller
ODataConventionModelBuilder modelBuilder = new ODataConventionModelBuilder();modelBuilder.EntitySet<Movie>("Movies");IEdmModel model = modelBuilder.GetEdmModel();
config.Routes.MapODataRoute(routeName: "OData", routePrefix: "odata", model: model);
public class MoviesController : EntitySetController<Movie, int> {...}
Data Model for OData
The ASP.NET Web API core runtime has no data modelObjects 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 youProvide metadata, setup routes, rich link generation, query, paging
Your OData EDM can be different from your EF EDMYou don’t even need an EF EDM – use any data source you’d like
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 IQueryableTranslate the Abstract Syntax Tree to your query mechanism of choice
Query validationRestrict 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
signalR
Jim Wang
what is it?
SignalR : Incredibly simple real-time for ASP.NET Automatic protocol negotiation
Simplicity Reach Performance
where are we?
github.com/SignalR/SignalRTaking pull requests!
1.0 RTW with ASP.NET 2012.2Available now.
clients
Today jQuery .NET 4.0+ Silverlight 5 Windows Phone 8 .NET for Windows Store
apps
Future? Pure JavaScript (no jQuery) C++ (Windows Store &
Embedded) MonoTouch/MonoDroid Objective C Java …
what’s next?
Monthly point releases More documentation and samples More templates and scaffolding Scale out
Service Bus SQL Server Redis
knockout.js
Jim Wang
features
let’s build.
Jim Wang
get ASP.NET and Web Tools 2012.2www.asp.net/vnextDownloads it through the Web Platform Installer
links
Knockout.jshttp://knockoutjs.com
Bootstraphttp://twitter.github.com/bootstrap/
OData Security Guidance for Web APIhttp://www.asp.net/web-api/overview/odata-support-in-aspnet-web-api/odata-security-guidance
