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Add custom json formatter for format: date #241

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Add custom json formatter for format: date #241

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4 changes: 4 additions & 0 deletions src/SwaggerProvider.DesignTime/v3/DefinitionCompiler.fs
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Original file line number Diff line number Diff line change
Expand Up @@ -263,6 +263,10 @@ type DefinitionCompiler(schema: OpenApiDocument, provideNullable) as this =

let pField, pProp = generateProperty propName pTy

//
if (schemaObj.Type, schemaObj.Format) = ("string", "date") then
pProp.AddCustomAttribute(RuntimeHelpers.getDateTimeOffsetFullDateConverterAttribute())

if not <| String.IsNullOrWhiteSpace propSchema.Description then
pProp.AddXmlDoc propSchema.Description

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23 changes: 23 additions & 0 deletions src/SwaggerProvider.Runtime/RuntimeHelpers.fs
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Expand Up @@ -2,6 +2,7 @@ namespace Swagger.Internal

open System
open System.Net.Http
open System.Text.Json
open System.Text.Json.Serialization
open System.Threading.Tasks

Expand All @@ -18,6 +19,19 @@ module MediaTypes =
[<Literal>]
let MultipartFormData = "multipart/form-data"

type DateTimeOffsetFullDateConverter() =

inherit JsonConverter<DateTimeOffset>()

override this.Read(reader: byref<Utf8JsonReader>, _typ: Type, options: JsonSerializerOptions) =
DateTimeOffset.Parse(reader.GetString())

override this.Write(writer: Utf8JsonWriter, value: DateTimeOffset, options: JsonSerializerOptions) =
writer.WriteStringValue(
// full-date: date-fullyear "-" date-month "-" date-mday according to https://datatracker.ietf.org/doc/html/rfc3339#section-5.6
// this format is required for strings with format 'date' according to https://swagger.io/docs/specification/data-models/data-types/
value.ToUniversalTime().ToString("yyyy-MM-dd")
)

type AsyncExtensions() =
static member cast<'t> asyncOp =
Expand Down Expand Up @@ -123,6 +137,15 @@ module RuntimeHelpers =

member _.NamedArguments = [||] :> Collections.Generic.IList<_> }

let getDateTimeOffsetFullDateConverterAttribute() =
{ new Reflection.CustomAttributeData() with
member _.Constructor = typeof<JsonConverterAttribute>.GetConstructor [| typeof<Type> |]

member _.ConstructorArguments =
[| Reflection.CustomAttributeTypedArgument(typeof<Type>, typeof<DateTimeOffsetFullDateConverter>) |] :> Collections.Generic.IList<_>

member _.NamedArguments = [||] :> Collections.Generic.IList<_> }

let toStringContent(valueStr: string) =
new StringContent(valueStr, Text.Encoding.UTF8, "application/json")

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