using Newtonsoft.Json; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace FlexJobApi.Core { public class EmptyStringToNullConverter : JsonConverter { public override bool CanConvert(Type objectType) { return objectType == typeof(string); } public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer) { var value = (string)reader.Value; return string.IsNullOrEmpty(value) ? null : value; } public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer) { writer.WriteValue(value); } } }