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Understanding REST on Microsoft Stack for Hypermedia API Development

Dive into the world of Representational State Transfer (REST) architecture on Microsoft Stack, exploring its principles, evolution, and practical applications in developing Hypermedia APIs with ASP.NET Web API. Learn the essentials of REST, Hypermedia controls, HATEOAS, and more.

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Understanding REST on Microsoft Stack for Hypermedia API Development

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  1. REST på Microsoft-stacken Robert Folkesson Active Solution

  2. Who AM I?

  3. REST? • Dissertation by Roy Fielding 2000 • “Architectural Styles and the Design of Network-based Software Architectures” • ReST = Representational State Transfer

  4. Architecturalconstraints • Client–server • Stateless • Cacheable • Layered system • Uniform Interface

  5. Scalability GET http://fabrikam.com/API/User/42

  6. Guiding principles of REST-interfaces • Identificationofresources • Manipulation of resources through representations of these resources • Self-descriptivemessages • Hypermedia as the engine of application state

  7. HATEOASHypermedia as the engineofapplicationstate

  8. Exampleof hypermedia representation (Netflix)

  9. Richardsons maturitymodel Gloryof REST Level 3: Hypermedia Controls Level 2: HTPP Verbs Level 1: Resources Level 0: The swampof POX

  10. REST on Microsoft – somehistory • WCF pre-3.5: painful… • WCF 3.5: WebHttpBinding. • WCF REST Starter Kit (no longer supported) • WCF Data Services (OData) • WCF Web API - Preview 1 - 6

  11. WCF ASP.NET Web API

  12. http://www.asp.net/web-api • Goal: One HTTP/ REST / Hypermedia API Fx • Integrated in ASP.NET: Best ofbothworld

  13. WCF to ASP.NET Web API WCF Web APIASP.NET Web API Service => Web API controller Operation => Action Service contract => n/a Endpoint => n/a URI templates => ASP.NET Routing Messagehandlers => Same Formatters => Same Operation handlers => Filters, modelbinders

  14. DEMO – File new

  15. Media types & Media Formatters

  16. Media types & Media Formatters • Built in support for: • XML • JSON • form-urlencodeddata • Can be extendedwithcustomMedia Formatters

  17. DEMO – Media Typeformatter

  18. Web API on NuGet • Web API hosted in ASP.NET: • AspNetWebApi • Self-hostedWeb API: • AspNetWebApi.Selfhost • HttpClientincluding XML and JSON formatters: • System.Net.Http.Formatting • JsonValuefor navigating and manipulating JSON: • System.Json

  19. Node-style Web API? http://blogs.msdn.com/b/youssefm/archive/2012/02/24/writing-a-lightweight-web-service-using-webapi-building-blocks.aspx

  20. DEMO – SELF HOSTING

  21. Web API can be used for all levels Gloryof REST Level 3: Hypermedia Controls Level 2: HTPP Verbs ASP.NET Web API Level 1: Resources Level 0: The swampof POX

  22. Somegoodreading

  23. Nextperiencefor a connectedworldwith ASP.NET Web API

  24. Thank you! Robert Folkesson | Active Solution robert.folkesson@activesolution.se | @rfolkes www.robertfolkesson.se

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