Quick and Dirty access to Marvel Comics API

Just something I whipped up to check out the Marvel Comics API using JSON Type Provider

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//#I @"C:\Projects\lib\FSharp.Data"
//#r "FSharp.Data"

open System.Security.Cryptography
open FSharp.Data
open System.Text

//Get your public and private key from http://developer.marvel.com/ 
[<Literal>]
let publicKey = ""
[<Literal>]
let privateKey = ""
[<Literal>]
let characters = "http://gateway.marvel.com/v1/public/characters"

let md5string (value: string) =
    use x = MD5.Create()
    Encoding.UTF8.GetBytes value
    |> x.ComputeHash
    |> Seq.map (fun x -> x.ToString("x2"))
    |> String.concat ""
    
let marvelHash =
    let seed = ref 0
    fun () ->
        incr seed
        let result = sprintf "%i%s%s" !seed privateKey publicKey |> md5string
        !seed, result

//marvelHash() to generate an initial hash

[<Literal>]
let sample = characters + "?ts=1&apikey=" + publicKey + "&hash=<your inital hash here>"

type Characters = JsonProvider<sample>

let result =
    let seed, hash = marvelHash()
    sprintf "%s?ts=%i&apikey=%s&hash=%s" characters seed publicKey hash
    |> Characters.Load

result.Data.Results
|> Array.map (fun x -> x.Name)

namespace System

namespace System.Security

namespace System.Security.Cryptography

Multiple items
namespace FSharp

--------------------
namespace Microsoft.FSharp

Multiple items
namespace FSharp.Data

--------------------
namespace Microsoft.FSharp.Data

namespace System.Text

Multiple items
type LiteralAttribute =
inherit Attribute
new : unit -> LiteralAttribute

Full name: Microsoft.FSharp.Core.LiteralAttribute

--------------------
new : unit -> LiteralAttribute

val publicKey : string

Full name: Script.publicKey

val privateKey : string

Full name: Script.privateKey

val characters : string

Full name: Script.characters

val md5string : value:string -> string

Full name: Script.md5string

val value : string

Multiple items
val string : value:'T -> string

Full name: Microsoft.FSharp.Core.Operators.string

--------------------
type string = System.String

Full name: Microsoft.FSharp.Core.string

val x : MD5

type MD5 =
inherit HashAlgorithm
static member Create : unit -> MD5 + 1 overload

Full name: System.Security.Cryptography.MD5

MD5.Create() : MD5
MD5.Create(algName: string) : MD5

type Encoding =
  member BodyName : string
  member Clone : unit -> obj
  member CodePage : int
  member DecoderFallback : DecoderFallback with get, set
  member EncoderFallback : EncoderFallback with get, set
  member EncodingName : string
  member Equals : value:obj -> bool
  member GetByteCount : chars:char[] -> int + 3 overloads
  member GetBytes : chars:char[] -> byte[] + 5 overloads
  member GetCharCount : bytes:byte[] -> int + 2 overloads
  ...

Full name: System.Text.Encoding

property Encoding.UTF8: Encoding

Encoding.GetBytes(s: string) : byte []
Encoding.GetBytes(chars: char []) : byte []
Encoding.GetBytes(chars: char [], index: int, count: int) : byte []
Encoding.GetBytes(chars: nativeptr<char>, charCount: int, bytes: nativeptr<byte>, byteCount: int) : int
Encoding.GetBytes(s: string, charIndex: int, charCount: int, bytes: byte [], byteIndex: int) : int
Encoding.GetBytes(chars: char [], charIndex: int, charCount: int, bytes: byte [], byteIndex: int) : int

HashAlgorithm.ComputeHash(buffer: byte []) : byte []
HashAlgorithm.ComputeHash(inputStream: System.IO.Stream) : byte []
HashAlgorithm.ComputeHash(buffer: byte [], offset: int, count: int) : byte []

module Seq

from Microsoft.FSharp.Collections

val map : mapping:('T -> 'U) -> source:seq<'T> -> seq<'U>

Full name: Microsoft.FSharp.Collections.Seq.map

val x : byte

System.Byte.ToString() : string
System.Byte.ToString(provider: System.IFormatProvider) : string
System.Byte.ToString(format: string) : string
System.Byte.ToString(format: string, provider: System.IFormatProvider) : string

module String

from Microsoft.FSharp.Core

val concat : sep:string -> strings:seq<string> -> string

Full name: Microsoft.FSharp.Core.String.concat

val marvelHash : (unit -> int * string)

Full name: Script.marvelHash

val seed : int ref

Multiple items
val ref : value:'T -> 'T ref

Full name: Microsoft.FSharp.Core.Operators.ref

--------------------
type 'T ref = Ref<'T>

Full name: Microsoft.FSharp.Core.ref<_>

val incr : cell:int ref -> unit

Full name: Microsoft.FSharp.Core.Operators.incr

val result : string

val sprintf : format:Printf.StringFormat<'T> -> 'T

Full name: Microsoft.FSharp.Core.ExtraTopLevelOperators.sprintf

val sample : string

Full name: Script.sample

type Characters = obj

Full name: Script.Characters

type JsonProvider

Full name: FSharp.Data.JsonProvider

<summary>Typed representation of a JSON document.</summary>
       <param name='Sample'>Location of a JSON sample file or a string containing a sample JSON document.</param>
       <param name='SampleIsList'>If true, sample should be a list of individual samples for the inference.</param>
       <param name='RootName'>The name to be used to the root type. Defaults to `Root`.</param>
       <param name='Culture'>The culture used for parsing numbers and dates. Defaults to the invariant culture.</param>
       <param name='Encoding'>The encoding used to read the sample. You can specify either the character set name or the codepage number. Defaults to UTF8 for files, and to ISO-8859-1 the for HTTP requests, unless `charset` is specified in the `Content-Type` response header.</param>
       <param name='ResolutionFolder'>A directory that is used when resolving relative file references (at design time and in hosted execution).</param>
       <param name='EmbeddedResource'>When specified, the type provider first attempts to load the sample from the specified resource
          (e.g. 'MyCompany.MyAssembly, resource_name.json'). This is useful when exposing types generated by the type provider.</param>
       <param name='InferTypesFromValues'>If true, turns on additional type inference from values.
          (e.g. type inference infers string values such as "123" as ints and values constrained to 0 and 1 as booleans.)</param>

val result : obj

Full name: Script.result

val seed : int

val hash : string

namespace Microsoft.FSharp.Data

module Array

from Microsoft.FSharp.Collections

val map : mapping:('T -> 'U) -> array:'T [] -> 'U []

Full name: Microsoft.FSharp.Collections.Array.map

val x : obj

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More information

Link:	http://fssnip.net/mC
Posted:	9 years ago
Author:	David Grenier
Tags:	typeprovider , json , marvel