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Using nancy from F#
f#webnancy

Hi,

Is anyone using Nancy from F#? Are there any wrappers/helpers you know of to make it a bit more idiomatic?

FWIW below is what I've created, it only handles GETs so far. Adding the other methods should be pretty trivial. I'm new to F# so let me know if this could be improved.

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//Wraps DynamicDictionary to get all values as strings 
type FsNancyDict( d:DynamicDictionary ) =
    inherit DynamicDictionary()
    
    member x.Item
        with get(n:string) =
            d.[n].ToString()

//Wraps NancyModule to add the GET, POST etc methods and make the Response methods easier to use
type FsNancyModule() =
    inherit NancyModule()

    member x.Resp (r:string) =
        Response.op_Implicit(r)

    member x.Get (s:string) (f:FsNancyDict->Response) =
            base.Get.Item(s) <- (fun o -> f (new FsNancyDict((o :?> DynamicDictionary ))) )


//---Example usage----


type TestModule() as x =
    inherit FsNancyModule()

    do
        x.Get "/test" (fun o -> 
            x.Resp "test1" )

        x.Get "/get/{id}" (fun o -> 
            printfn "%s" o.["id"]
            x.Resp "test1" )


let host = new NancyHost( new Uri( "http://127.0.0.1:12345" ) )
host.Start()
printfn "http://localhost:12345"
Console.ReadLine() |> ignore
.

Your wrapper types look fine, btw. It's just that this approach does not take great advantage of F#'s strengths.

By on 11/8/2011 2:15 PM ()

In addition to WebSharper, you might want to check out Frank, Figment, or PicoMvc, all of which try to take a better F# view of the world. Full disclosure, I'm working on Frank and am currently working on a cleanup then merge with Figment (with Mauricio's permission).

By on 11/8/2011 8:55 AM ()

Have you looked at WebSharper sitelets? They are a composable, type-safe abstraction for website values in F#. Another powerful web construct you might be interested in is formlets.

By on 11/2/2011 3:19 PM ()

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