OWIN! Embrace Open Source

Transcript

1. OWIN! Embrace Open Source
2. @CHOUDESHELL http://www.choudeshell.com
3. Developer @ EnergyCAP Tinkernaut @ Home* * After being a and a (if she didn’t delete Doctor Who)
4. Heckling is OK.
5. Agenda TopShelf (Quickly) Owin Katana Code
6. Let’s get started…
7. TopShelf
8. Simplifies Windows Services “Just” a console app Installation is as easy as “app.exe install” Debugged just like a console app
11. {{ CODE }}
12. What is OWIN?
13. Open Web Interface for .NET
14. “… a standard interface between .NET web servers and web applications. The goal of OWIN is to decouple server and application and, by being an open standard, stimulate the open source ecosystem of .NET web development tools.” -- Open Web Server Interface for .NET, v1.0.0
15. Open Source / Open Governed
16. Similar to Ruby’s Rack and Python’s WSGI
17. Why OWIN?
19. And we all hate reading standards…
20. application delegate & environment dictionary
21. environment dictionary is just a… IDictionary<string, object>
23. application delegate is just a… Func<IDictionary<,>, Task>
24. Func<IDictionary<string, object>, Task>
25. The OWIN pipeline AppFunc  AppFunc  AppFunc
26. But the story doesn’t stop there…
27. Katana Project
28. Open Source / Microsoft Governed
29. “… is a flexible set of components for building and hosting OWIN-based web applications.”
30. Katana implements OWIN in a modular architecture. Any piece can be swapped out.
31. Application Middleware Server Host
32. Host
33. Manages the underlying process & Construction of the OWIN pipeline
34. IIS Custom Host (Self-Host) OwinHost.exe
35. Server
36. Accept requests & Starts execution of the OWIN pipeline
37. Built-in support of 2 servers… HttpListener SystemWeb
38. HttpListener uses http.sys/HttpListener to construct a socket listens for requests to accept executes OWIN pipeline
39. SystemWeb registers a ASP.NET HttpModule within IIS to intercept requests executes OWIN pipeline if not handled by OWIN, returns to integrated pipeline
40. The separation between Host & Server can be blurry…
41. Entry point
42. {{ CODE }}
43. Application
44. Func<Microsoft.Owin.IOwinContext, System.Threading.Tasks.Task>
46. {{ CODE }}
47. Middleware
48. Handled before Application and in order
49. Integrated Pipeline
50. WebApi2 as Middleware
51. {{ MAGIC? }}
52. Maybe.
53. OwinRequest  HttpRequestContext Task Completed.
54. Implementing our own Middleware…
55. {{ CODE }}
56. Popular Middleware
63. Separation of concerns
64. Razor View Engine & MVC Middleware
65. THANKS! Follow me on the Twitters @CHOUDESHELL