namespace System.Text.Json.Serialization.Converters { internal sealed class ReadOnlyMemoryByteConverter : JsonConverter<ReadOnlyMemory<byte>> { public override bool HandleNull => true; public override ReadOnlyMemory<byte> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) { return (reader.TokenType == JsonTokenType.Null) ? null : reader.GetBytesFromBase64(); } public override void Write(Utf8JsonWriter writer, ReadOnlyMemory<byte> value, JsonSerializerOptions options) { writer.WriteBase64StringValue(value.Span); } } }