How can I convert string to JSON in Model class-CodePudding

I would like convert string to JSON while receiving the value from API. I am sending value from postman but I am unable to convert it to the JSON object in the model class ,I have decorated model class with the custom decorator. Thanks in Advance.

This is the Model Class and I wrote custom JSON convertor.

 namespace WebApplication2.Models
   {
    [Serializable]
    public class Test
    {
        [JsonConverter(typeof(UserConverter))]
        public AS_AscContext AscParcelContext { get; set; }

    }
    public class AS_AscContext
    {
        public string ShellType { get; set; }
        public string LayoutName { get; set; }
    }

   
    public class UserConverter : JsonConverter
    {
        private readonly Type[] _types;

        public UserConverter(params Type[] types)
        {
            _types = types;
        }

        public override void WriteJson(JsonWriter writer, object value, Newtonsoft.Json.JsonSerializer serializer)
        {
            JToken t = JToken.FromObject(value);

            if (t.Type != JTokenType.Object)
            {
                t.WriteTo(writer);
            }
            else
            {
                JObject o = (JObject)t;
                IList<string> propertyNames = o.Properties().Select(p => p.Name).ToList();

                o.AddFirst(new JProperty("Keys", new JArray(propertyNames)));

                o.WriteTo(writer);
            }
        }

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, Newtonsoft.Json.JsonSerializer serializer)
        {
            throw new NotImplementedException("Unnecessary because CanRead is false. The type will skip the converter.");
        }

        public override bool CanRead
        {
            get { return false; }
        }

        public override bool CanConvert(Type objectType)
        {
            return _types.Any(t => t == objectType);
        }
    }

This is the controller receiving value

 [HttpPost]
    public IActionResult Privacy([FromBody]Test aS_AggregatorRequest)
    {
       
        return View();
    }

This is the postman collection

CodePudding user response：

Try to change your postman JSON like this,

   {
      "ascParcelContext": {
          "shellType": "ceme-sales-wallaby",
          "layoutName": "value"
     }
   }

Don't escape any of the JSON data.

CodePudding user response：

your json has another json inside. So it is better to fix the api but if you don't have an access try this

[HttpPost]
public IActionResult Privacy([FromBody]JObject jsonObject)
{

jsonObject["ascParcelContext"]= JObject.Parse( (string) jsonObject["ascParcelContext"]);

Test test = jsonObject.ToObject<Test>();

.....

}

public class Test
{
    [JsonProperty("ascParcelContext")]
    public AS_AscContext AscParcelContext { get; set; }

}
public class AS_AscContext
{
    [JsonProperty("shellType")]
    public string ShellType { get; set; }
    [JsonProperty("layoutName")]
    public string LayoutName { get; set; }
}