FSharp

Thanks to the simplicity, elegance, strong typing and philosophy of both solutions, FSharp and ServiceStack is quickly becoming a popular choice for creating friction-less REST and message-based remote services.

Complete F# Console Host Example

open System
open ServiceStack.ServiceHost
open ServiceStack.WebHost.Endpoints
 
type Hello = { mutable Name: string; }
type HelloResponse = { mutable Result: string; }
type HelloService() =
    interface IService with
        member this.Any (req:Hello) = { Result = "Hello, " + req.Name }
 
//Define the Web Services AppHost
type AppHost =
    inherit AppHostHttpListenerBase
    new() = { inherit AppHostHttpListenerBase("Hi F#!", typeof<HelloService>.Assembly) }
    override this.Configure container =
        base.Routes
            .Add<Hello>("/hello")
            .Add<Hello>("/hello/{Name}") |> ignore
 
//Run it!
[<EntryPoint>]
let main args =
    let host = if args.Length = 0 then "http://*:1337/" else args.[0]
    printfn "listening on %s ..." host
    let appHost = new AppHost()
    appHost.Init()
    appHost.Start host
    Console.ReadLine() |> ignore
    0

Community Resources

• ServiceStack: New API – F# Sample by @sergey_tihon
• Async, Cached Twitter API Proxy in F# by @demisbellot
• F# Web Services on any platform in and out of a web server! by @demisbellot