F# 3.0 is included as part of Visual Studio 2012 and comes with a gallery of community contributed online templates for F#. Time to explore! One online template is "F#/C# MVC 4" using ASP.NET Web API. Let's use this template to create a HTTP REST Web API which responds to requests as follows:     GET http://myhost.com/api/values  --> the JSON value    ["value1","value2"]     GET http://myhost.com/api/values/5  --> the JSON value    5     POST http://myhost.com/api/values  --> does nothing by default, but y[...]