open System

open Newtonsoft.Json

open Microsoft.FSharpLu.Json

​

type r =

    {

        a: int

        //b: int

    }

let a =

    "{\"a\":3, \"b\":5}" 

​

// this works, json.net ignores missing members

let b = JsonConvert.DeserializeObject<r> a

​

// fsharplu.json adds a DU parser to json.net, the settings are part of json.net

Compact.TupleAsArraySettings.settings.MissingMemberHandling <- MissingMemberHandling.Ignore

let c = Compact.deserialize<r> a  // doesn't work

​

// somehow it is not possible to ignore missing members

​

​

​

​

​