Test-firstFunctional-firstWeb API

Ryan Riley

Software DeveloperLogos Bible Software

WebApiContribWebApiKoansF#xFrank

A Brief History of Web API

What is Web API?MVC

http://blogs.msdn.com/b/kiranchalla/archive/2012/05/05/asp-net-mvc4-web-api-stack-diagram.aspx

What is Web API?System.Net.Http

http://blogs.msdn.com/b/kiranchalla/archive/2012/05/05/asp-net-mvc4-web-api-stack-diagram.aspx

What is Web API?Hosting

http://blogs.msdn.com/b/kiranchalla/archive/2012/05/05/asp-net-mvc4-web-api-stack-diagram.aspx

Unit Testing withHttpClient &HttpServer

Too manyconcerns

1. Routing2. Authentication/Authorization3. Other HttpConfiguration settings4. Action selection5. Action result6. Use of MessageHandlers7. HttpResponseMessage details8. Content formatting

Focus Your Tests

What’s the base?

HttpRequestMessage -> HttpResponseMessage

Coincidence?

Coincidence?

Why focus on this one function?

The Boundary

ClientService

Boundary(HTTP)

Domain

Is this really useful?

Building with functions

Contact ManagerRedux

Re-integration

Going Deeper

ApiRouter

One of many contributions from Darrel MillerRouting via HttpMessageHandler (a.k.a. function)Goal: full control over resource routingGoal: nested resources

Functions all the way!

Could you build an API using only Message Handlers?

Could you build an API with functions only?

Frank

Wrap in an HttpMessageHandlerF# for first-class function supportBarely scratches the surface

Summary

Questions?

Thank you

http://spkr8.com/t/13571