Api with Item Array does not receive the posted data

Question

I have an Api that receives the posted data as it shows the image, it turns out the data is coming empty, I appreciate the help.

   //http://localhost:49764/api/unidade/carrinho/consultaUnidadeAtendimento
        [HttpPost]
        [Route("unidade/carrinho/consultaUnidadeAtendimento")]
        public HttpResponseMessage ConsultaUnidadeAtendimento(ConsultaUnidadeAtendimentoModel consultaAtendimento)
        {

            try
            {
                string numeroCarrinho = consultaAtendimento.NumeroCarrinho.ToString();
                string cep = consultaAtendimento.Cep;
                bool retiraLocal = consultaAtendimento.RetiraNoLocal;

               var tTabela = "";
               var listar = "";
               return Request.CreateResponse(HttpStatusCode.OK, new { usuario = listar.ToArray() });
            }
            catch (Exception ex)
            {

                return Request.CreateResponse(HttpStatusCode.BadRequest, ex.Message);
            }

        }



        public class ConsultaUnidadeAtendimentoModel
        {
            [JsonProperty("numeroCarrinho")]
            public long NumeroCarrinho { get; set; }

            [JsonProperty("itens")]
            public dynamic Itens { get; set; }

            [JsonProperty("cep")]
            public string Cep { get; set; }

            [JsonProperty("retiraNoLocal")]
            public bool RetiraNoLocal { get; set; }
        }

Answer 1

You cannot receive the Objeto C# in the request parameter, you receive JSON(string) and then deserializes the same.

Answer 2

tries to send JSON object changes in Postman

so you work with object becomes simpler

 public class Model
    {
        [JsonProperty("numeroCarrinho")]
        public long NumeroCarrinho { get; set; }

        [JsonProperty("itens")]
        public List<Carrinho> Itens { get; set; }

        [JsonProperty("cep")]
        public string Cep { get; set; }

        [JsonProperty("retiraNoLocal")]
        public bool RetiraNoLocal { get; set; }
    }

    public class Carrinho
    {
        [JsonProperty("codigo")]
        public string Codigo { get; set; }
        [JsonProperty("qtd")]
        public int Qtd { get; set; }
    }

json sent

 {
        "numeroCarrinho":122865,
        "itens":[
            {"codigo":"PA00058","qtd":1},
            {"codigo":"MA00068","qtd":1},
            {"codigo":"PA00004","qtd":1}
        ],
        "cep":"41706670",
        "retiradaNoLocal":false
    }