Notes

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace TSF.Utility
{
public class WebServiceBase<T> where T : class
{
#if DEBUG

private static string BaseUrl = "http://tsfgeotechnicaldev.azurewebsites.net/api/";
#else
private static string BaseUrl = "http://tsfgeotechnicaldev.azurewebsites.net/";
#endif

public static String Token
{
get;
set;
}

public WebServiceBase()
{
}

public WebServiceBase(string _token)
{
Token = _token;
}

public static async Task<T> RequestAsync(string URL, RequestType requestType = RequestType.Get, T SendObject = null,
string token = null, int triesNumber = 0, string contentType = "application/json")
{

T tReturn = null;
if (!string.IsNullOrEmpty(token))
Token = token;

for (int i = 0; i <= triesNumber; i++)
{
try
{

using (HttpClient client = new HttpClient())
{

HttpResponseMessage response = new HttpResponseMessage();

var requestBody = Newtonsoft.Json.JsonConvert.SerializeObject(SendObject);

client.BaseAddress = new Uri(BaseUrl);

HttpContent httpContent = new StringContent(requestBody, Encoding.UTF8, contentType);

if (!string.IsNullOrEmpty(token))
{
client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("bearer", Token);
}

switch (requestType)
{
case RequestType.Get:
response = await client.GetAsync(URL).ConfigureAwait(false);
break;
case RequestType.Post:
response = await client.PostAsync(URL, httpContent).ConfigureAwait(false);
break;
case RequestType.Put:
response = await client.PutAsync(URL, httpContent).ConfigureAwait(false);
break;
case RequestType.Delete:
response = await client.DeleteAsync(URL).ConfigureAwait(false);
break;
default:
break;
}

if (response.IsSuccessStatusCode)
{
string responseString = await response.Content.ReadAsStringAsync();

var objetoRetorno = Newtonsoft.Json.JsonConvert.DeserializeObject<T>(responseString);

tReturn = objetoRetorno;

}
else
{
if (response.StatusCode == System.Net.HttpStatusCode.RequestTimeout)
{
if (i == triesNumber)
throw new Exception("Tempo limite atingido");
}
else if (response.StatusCode == System.Net.HttpStatusCode.BadRequest)
throw new Exception("Serviço não encontrado");
else if (response.StatusCode == System.Net.HttpStatusCode.InternalServerError)
{
if (i == triesNumber)
throw new Exception("Serviço indisponível no momento");
}
else
throw new Exception("Falha no acesso!");
}
}

}
catch (Newtonsoft.Json.JsonException jx)
{
throw jx;
}
catch (Exception x)
{
throw x;
}
}

return tReturn;

}

public static async Task<T> RequestAsync(string URL, RequestType requestType = RequestType.Get, KeyValuePair<string, string>[] SendObject = null, int triesNumber = 0)
{

T tReturn = null;

for (int i = 0; i <= triesNumber; i++)
{
try
{

using (HttpClient client = new HttpClient())
{

HttpResponseMessage response = new HttpResponseMessage();

client.BaseAddress = new Uri(BaseUrl);

HttpContent httpContent = new FormUrlEncodedContent(SendObject);

switch (requestType)
{
case RequestType.Get:
response = await client.GetAsync(URL).ConfigureAwait(false);
break;
case RequestType.Post:
//var r = client.PostAsync(URL, httpContent).Result;
response = await client.PostAsync(URL, httpContent).ConfigureAwait(false);
break;
case RequestType.Put:
response = await client.PutAsync(URL, httpContent).ConfigureAwait(false);
break;
case RequestType.Delete:
response = await client.DeleteAsync(URL).ConfigureAwait(false);
break;
default:
break;
}

if (response.IsSuccessStatusCode)
{
string responseString = await response.Content.ReadAsStringAsync();

var objetoRetorno = Newtonsoft.Json.JsonConvert.DeserializeObject<T>(responseString);


tReturn = objetoRetorno;

}
else
{
if (response.StatusCode == System.Net.HttpStatusCode.RequestTimeout)
{
if (i == triesNumber)
throw new Exception("Tempo limite atingido");
}
else if (response.StatusCode == System.Net.HttpStatusCode.BadRequest)
throw new Exception("Serviço não encontrado");
else if (response.StatusCode == System.Net.HttpStatusCode.ServiceUnavailable)
{
throw new HttpRequestException("Sem Conexão");
}
else if (response.StatusCode == System.Net.HttpStatusCode.InternalServerError)
{
if (i == triesNumber)
throw new Exception("Serviço indisponível no momento");
}
else
throw new Exception("Falha no acesso!");
}
}

}
catch (Newtonsoft.Json.JsonException jx)
{
throw jx;
}
catch (Exception x)
{
throw x;
}
}

return tReturn;

}
}

public enum RequestType
{
Get,
Post,
Put,
Delete
}


}