Service stopped working when generating the chart

Question

I was having trouble generating a graph, which is solved. The code below was ok and suddenly stopped, IE, the service is not running on account do not know what. At the time I call the Getservice nothing comes, the var itensgrid remains void.

public class DataModelGrid
    {
        DataService dataService = new DataService();
        public List<LiberacaoItensGrid> itensGrid = new List<LiberacaoItensGrid>();
        public List<GeraGrafico> GeraChart { get; set; }
        public double IdOrcamento { get; set; }
        public double TotalVenda { get; set; }
        public double TotalLucro { get; set; }
        public DataModelGrid(double id)
        {
            GetService(id);
            GeraChart = new List<GeraGrafico>();
            GeraChart.Add(new GeraGrafico() { Assunto = "Vendas", Total = TotalVenda });
            GeraChart.Add(new GeraGrafico() { Assunto = "Lucro", Total = TotalLucro });
        }        
        public async void GetService(double id)
        {
            itensGrid = await dataService.GetDataGrid(id);
            foreach(var item in itensGrid)
            {
                this.IdOrcamento = item.IdOrcamento;
                this.TotalVenda = item.TotalVenda;
                this.TotalLucro = item.TotalLucro;
            }
        }
        public class GeraGrafico
        {
            public string Assunto { get; set; }
            public double Total { get; set; }
        }
    }

That’s the code I use to get my service

public async Task<List<LiberacaoItensGrid>> GetDataGrid(double id)
        {
            try
            {
                string url = $"http://www.inetglobal.com.br/autorizador/api/getliberaitens/{id}";
                var response = await client.GetStringAsync(url);
                var itenslib = JsonConvert.DeserializeObject<List<LiberacaoItensGrid>>(response);
                return itenslib.ToList();
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

The problem that was working and I don’t know what I did. I already gave Ctrl+Z until I came back to nothing, I was doing Ctrl+Shift+Z and testing every step passed and I did not succeed.

Why am I no longer getting information that comes from my service with these codes? What’s wrong? When I hit one thing, I miss another. One in the harpsichord and one in the horseshoe.

EDIT1

You’re making this mistake

Newtonsoft.Json.Jsonreaderexception: Unexpected Character encountered while Parsing value: S. Path '', line 0, position 0. at Newtonsoft.Json.Jsontextreader.Parsevalue () [0x002b3] in :0 at Newtonsoft.Json.Jsontextreader.Read () [0x0004c] in :0 at Newtonsoft.Json.Jsonreader.Readandmovetocontent () [0x00000] in :0 at Newtonsoft.Json.JsonReader.ReadForType (Newtonsoft.Json.Serialization.Jsoncontract Contract, System.Boolean hasConverter) [0x00043] in :0 at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize (Newtonsoft.Json.Jsonreader Reader, System.Type objectType, System.Boolean checkAdditionalContent) [0x000db] in :0 at Newtonsoft.Json.JsonSerializer.DeserializeInternal (Newtonsoft.Json.Jsonreader Reader, System.Type objectType) [0x00053] in :0 at Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader Reader, System.Type objectType) [0x00000] in :0 at Newtonsoft.Json.Jsonconvert.Deserializeobject (System.String value, System.Type type type, Newtonsoft.Json.Jsonserializersettings Settings) [0x0002d] in :0 at Newtonsoft.Json.Jsonconvert.Deserializeobject[T] (System.String value, Newtonsoft.Json.Jsonserializersettings Settings) [0x00000] in :0 at Newtonsoft.Json.Jsonconvert.Deserializeobject[T] (System.String value) [0x00000] in :0 at Authorizer.Service.Dataservice+d__4.Movenext () [0x0005b] in C: Labs Authorizing Authorizing Authorizing Service Dataservice.Cs:60 }

For that code

public async Task<List<LiberacaoItensGrid>> GetDataGrid(double id)
        {
            try
            {
                //string url = $"http://www.inetglobal.com.br/autorizador/api/getliberaitens/{id}";
                //var response = await client.GetStringAsync(url);
                //var itenslib = JsonConvert.DeserializeObject<List<LiberacaoItensGrid>>(response);
                var client = new HttpClient();
                string url = $"http://www.inetglobal.com.br/autorizador/api/getliberaitens/{id}";
                var response = client.GetStringAsync(url);

                response.Wait(); // use assim ou com o while ....
                var itenslib = JsonConvert.DeserializeObject<List<LiberacaoItensGrid>>(response.ToString());

                while (response.Status != System.Threading.Tasks.TaskStatus.RanToCompletion)
                {

                }

                return itenslib.ToList();
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

Answer 1

amend your Wait as follows.

var client = new HttpClient();
string url = $"http://www.inetglobal.com.br/autorizador/api/getliberaitens/{id}";
var response = client.GetStringAsync(url);

response.Wait(); // use assim ou com o while ....

while(response.Status != System.Threading.Tasks.TaskStatus.RanToCompletion)
{

}

Solution in Git