Building rest services using aspnetwebapi
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The document discusses building REST services using ASP.NET Web API. It defines REST and its constraints, and explains what ASP.NET Web API is and how it enables writing REST based services. It covers HTTP verbs, defining resources, content negotiation, and provides an example of building a simple ASP.NET Web API application.
Building rest services using aspnetwebapi
- 1. Building Rest Services Using ASP.NET Web API Brij Bhushan Mishra http://codewala.net @code_wala https://www.facebook.com/codewala
- 2. About Me • Brij Bhushan Mishra • 5 times Microsoft MVP - ASP.NET/IIS • Architect/Consultant/ SME • Avid Blogger/ Author/ Reviewer • Speaker at top Conferences including GIDS, TechEd, C# Corner Conference and many more • Work closely with various organizations as SME, Content developer, Speaker, Community Tech Reviewer • http://codewala.net • @code_wala • https://www.facebook.com/codewala http://codewala.net @code_wala https://www.facebook.com/codewala
- 3. What is REST ? http://codewala.net @code_wala https://www.facebook.com/codewala
- 4. Everybody needs REST? Representational State TransferRepresentational State Transfer http://codewala.net @code_wala https://www.facebook.com/codewala
- 5. Why are we talking about Rest? • To Understand it, let’s talk about WCF and its working SOAPSOAPSOAP http://codewala.net @code_wala https://www.facebook.com/codewala
- 6. What is Rest? • Rest is an Architectural Style Kalinga Architecture MughalArchitecture http://codewala.net @code_wala https://www.facebook.com/codewala
- 7. Rest Constraints • Client Server • Stateless server • Cacheable • Uniform Interface • Layered System • Code on Demand http://codewala.net @code_wala https://www.facebook.com/codewala
- 8. Client Server Request Response http://codewala.net @code_wala https://www.facebook.com/codewala
- 9. Stateless Sever Request Response Request Response No State Preserved http://codewala.net @code_wala https://www.facebook.com/codewala
- 11. Uniform Interface • Identification of a resource • Each resource should be identified by an Id (api/books/{id}) • Manipulation of resources through representations • Same representations should be sent back as are received via API • Uses the standard HTTP verbs for the operation http://codewala.net @code_wala https://www.facebook.com/codewala
- 12. Layered System Load BalancerProxy Server http://codewala.net @code_wala https://www.facebook.com/codewala
- 13. Why REST? • Uses HTTP. Less Overhead and lightweight • Content negotiation • JSON vs XML • Any Data from Any Where http://codewala.net @code_wala https://www.facebook.com/codewala
- 14. What is ASP.NET Web API? ASP.NET Web API is framework that enables to write REST based services. http://codewala.net @code_wala https://www.facebook.com/codewala
- 15. HTTP Verbs • GET (Reading the resource) • POST (Create a resource) • PUT (Update a resource) • DELETE (Delete a resource) • PATCH (Update a resource) http://codewala.net @code_wala https://www.facebook.com/codewala
- 16. Key Characteristics – Defining a Resource • Collection or single ../api/bookstore/books or /api/bookstore/books/{id} • Noun (not a verb) • Navigation (for associated items) • In Web API, Noun is typically a controller http://codewala.net @code_wala https://www.facebook.com/codewala
- 17. Earlier versions of ASP.NET http://codewala.net @code_wala https://www.facebook.com/codewala
- 18. ASP.NET Core 1.0 http://codewala.net @code_wala https://www.facebook.com/codewala
- 19. Postman – Tool for Testing Web API http://codewala.net @code_wala https://www.facebook.com/codewala
- 20. Lets Build our First ASP.NET Web API application http://codewala.net @code_wala https://www.facebook.com/codewala
- 21. Content Negotiation http://codewala.net @code_wala https://www.facebook.com/codewala
- 22. What we covered today • What is not REST • REST Constraints • What is ASP.NET Web API • HTTP Verbs • ASP.NET Core ( MVC = MVC + Web API) • POSTMAN • Demo.. Demo.. http://codewala.net @code_wala https://www.facebook.com/codewala
- 23. Thank You http://codewala.net @code_wala https://www.facebook.com/codewala http://codewala.net @code_wala https://www.facebook.com/codewala [email protected] http://bit.ly/1OTSgZ8