Unexpected character encountered while parsing value: [. Path 'Listing', line 3, position 14....

[JanGasperan]

Hello,

I am encountering an error when trying to call the generated Client method. My method takes a RequestDto that has an array property. I get the Exception

public partial class RequestDto
{
    public int Emailadress { get; set; }
    public string[]? Listing { get; set; }
}

nswag generates the Client with

        public virtual async System.Threading.Tasks.Task<System.Collections.Generic.ICollection<ResponseDto>> SearchAsync(RequestDto req, System.Threading.CancellationToken cancellationToken)
        {
            if (req == null)
                throw new System.ArgumentNullException("req");

            var client_ = _httpClient;
            var disposeClient_ = false;
            try
            {
                using (var request_ = new System.Net.Http.HttpRequestMessage())
                {
                    var json_ = Newtonsoft.Json.JsonConvert.SerializeObject(req, _settings.Value);
                    var dictionary_ = Newtonsoft.Json.JsonConvert.DeserializeObject<System.Collections.Generic.Dictionary<string, string>>(json_, _settings.Value);
                    var content_ = new System.Net.Http.FormUrlEncodedContent(dictionary_);
                    content_.Headers.ContentType = System.Net.Http.Headers.MediaTypeHeaderValue.Parse("application/json");
                    request_.Content = content_;

Newtonsoft.Json.JsonConvert.DeserializeObject<System.Collections.Generic.Dictionary<string, string>> - throw the exception -> Unexpected character encountered while parsing value: [. Path 'Listing', line 3, position 14....

Is there a configuration I need to set or change to be able to use Controllers that use RequestDto having List or Array Properties?
Why is there a Desarialization into a Dictionary<string, string>?
Is there a configuration I can set so the request_.Content is set to json_ and not dictionary_?

Thank you

Generated using the NSwag toolchain v14.0.7.0 (NJsonSchema v11.0.0.0 (Newtonsoft.Json v13.0.0.0))

{
  "runtime": "Net80",
  "documentGenerator": {
    "fromDocument": {
      "url": "http://localhost:1111/docs/v1/swagger",
      "output": "swagger.KundenApiClient.json"
    }
  },
  "codeGenerators": {
    "openApiToCSharpClient": {
      "useBaseUrl": false,
      "generateBaseUrlProperty": false,
      "className": "ApiClient",
      "operationGenerationMode": "SingleClientFromOperationId",
      //"className": "{controller}Client",      
      //"operationGenerationMode": "MultipleClientsFromOperationId",
      "namespace": "ApiClient",
      "dateType": "System.DateTime",
      "dateTimeType": "System.DateTime",
      "timeType": "System.TimeSpan",
      "timeSpanType": "System.TimeSpan",
      "arrayType": "System.Collections.Generic.IEnumerable",
      "dictionaryType": "System.Collections.Generic.Dictionary",
      "arrayBaseType": "System.Collections.Generic.IEnumerable",
      "dictionaryBaseType": "System.Collections.Generic.Dictionary",
      "output": "../ApiClient.cs"
    }
    }
}