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How to Serialize Record, Discriminated Union and Tuple in Azure?

Here is the implementation of the three types in WCF Azure, and a sample using WCF in worker role, a WPF test project to invoke the three kinds of data type from worker role. Link is http://fsharp3sample.codeplex.com/SourceControl/changeset/view/13876

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open System.ServiceModel
open System.Runtime.Serialization
/// Record for LoanInformation
[<DataContract>]
type LoanInformation =
    { [<DataMember>] mutable Amount : double
      [<DataMember>] mutable InterestRateInPercent : double 
      [<DataMember>] mutable TermInMonth : int }

/// Record for PaymentInformation
[<DataContract>]
type PaymentInformation =
    { [<DataMember>] mutable MonthlyPayment : double
 
      [<DataMember>] mutable TotalPayment : double }

//[<DataContract>] --> Never add this attribute on Discriminated Union, it won't work
/// Discriminated Union
type Suit =
    | Heart
    | Diamond
    | Spade
    | Club

/// For F#, all the interface method must be given a parameter name: eg. a:LoanInformation
/// otherwise, you will fail to start the service host
[<ServiceContract>]
type public ILoanCadulator =
    /// Use Record to send and recieve data
    [<OperationContract>]
    abstract Calculate : a:LoanInformation -> PaymentInformation
    /// Use Tuple to send and recieve data
    [<OperationContract>]
    abstract Calculate2 : b:(int * string) -> int * string
    /// Use Discriminated Union(DU) to send and recieve data
    [<OperationContract>]
    abstract Calculate3 : c: Suit -> Suit

namespace System

namespace System.Runtime

namespace System.Runtime.Serialization

type LoanInformation =
  {mutable Amount: double;
   mutable InterestRateInPercent: double;
   mutable TermInMonth: int;}

Full name: Script.LoanInformation

Record for LoanInformation

LoanInformation.Amount: double

Multiple items
val double : value:'T -> float (requires member op_Explicit)

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

--------------------
type double = System.Double

Full name: Microsoft.FSharp.Core.double

LoanInformation.InterestRateInPercent: double

LoanInformation.TermInMonth: int

Multiple items
val int : value:'T -> int (requires member op_Explicit)

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

--------------------
type int = int32

Full name: Microsoft.FSharp.Core.int

--------------------
type int<'Measure> = int

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

type PaymentInformation =
{mutable MonthlyPayment: double;
mutable TotalPayment: double;}

Full name: Script.PaymentInformation

Record for PaymentInformation

PaymentInformation.MonthlyPayment: double

PaymentInformation.TotalPayment: double

type Suit =
  | Heart
  | Diamond
  | Spade
  | Club

Full name: Script.Suit

Discriminated Union

union case Suit.Heart: Suit

union case Suit.Diamond: Suit

union case Suit.Spade: Suit

union case Suit.Club: Suit

type ILoanCadulator =
  interface
    abstract member Calculate : a:LoanInformation -> PaymentInformation
    abstract member Calculate2 : b:(int * string) -> int * string
    abstract member Calculate3 : c:Suit -> Suit
  end

Full name: Script.ILoanCadulator

For F#, all the interface method must be given a parameter name: eg. a:LoanInformation
otherwise, you will fail to start the service host

abstract member ILoanCadulator.Calculate : a:LoanInformation -> PaymentInformation

Full name: Script.ILoanCadulator.Calculate

Use Record to send and recieve data

abstract member ILoanCadulator.Calculate2 : b:(int * string) -> int * string

Full name: Script.ILoanCadulator.Calculate2

Use Tuple to send and recieve data

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

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

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

Full name: Microsoft.FSharp.Core.string

abstract member ILoanCadulator.Calculate3 : c:Suit -> Suit

Full name: Script.ILoanCadulator.Calculate3

Use Discriminated Union(DU) to send and recieve data

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More information

Link:	http://fssnip.net/c5
Posted:	12 years ago
Author:	AndrewXue
Tags:	f# , azure , serialize