WebApi Default Args Binder
| type CustomBinder() = | |
| interface IModelBinder with | |
| member this.BindModel(actionContext:HttpActionContext, bindingContext :ModelBindingContext) = | |
| let qs = HttpUtility.ParseQueryString(actionContext.Request.RequestUri.Query) | |
| bindingContext.Model <- | |
| if (qs.AllKeys |> Seq.exists(fun q -> q.ToLower() = bindingContext.ModelName.ToLower())) then | |
| qs.[bindingContext.ModelName] |> Some | |
| else | |
| None | |
| true | |
| type CustomBinderProvider() = | |
| inherit ModelBinderProvider() | |
| override this.GetBinder(configuration: System.Web.Http.HttpConfiguration , modelType: System.Type) = | |
| CustomBinder() :> IModelBinder | |
| type TestController() = | |
| inherit ApiController() | |
| [<HttpGetAttribute>] | |
| member this.Test([<ModelBinderAttribute(typeof<CustomBinderProvider>)>]?argument: string) = | |
| let arg = defaultArg argument "Hello" | |
| arg |
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