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

Mar 20, 2013Download as PPTX, PDF0 likes4,161 views

Microsoft Developer Network (MSDN) - Belgium and Luxembourg

This document discusses ASP.NET Web API and SignalR frameworks. ASP.NET Web API is a framework for building HTTP services that can reach a variety of clients. It features a modern HTTP programming model and supports content negotiation, request validation, and hosting flexibility. SignalR enables adding real-time web functionality to apps. It provides a simple API for adding real-time functionality like chat. The document also briefly mentions OData and Knockout.js.

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

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?

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

2. ASP.NET Web API Jim Wang

3. How to reach more clients?

4. How to make it scale?

5. How to keep it simple?

6. Leverage the Web – build Web APIs

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

8. 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+

9. 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

10. 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> {...}

11. 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

12. 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

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

14. signalR Jim Wang

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

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

17. 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  …

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

19. knockout.js Jim Wang

20. features

21. let’s build. Jim Wang

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

23. 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

24. questions? Jim Wang @turanuk [email protected]

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

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