private HTTPResponseDTO <T> WebExceptionHandler <T>(WebException webex, string referenceNo) where T : class
{
HTTPResponseDTO <T> response = null;
if (webex.Response != null)
{
WebResponse errResp = webex.Response;
HttpWebResponse resp = (HttpWebResponse)webex.Response;
using Stream respStream = errResp.GetResponseStream();
if (resp.StatusCode == HttpStatusCode.BadRequest)
{
string content = new StreamReader(respStream).ReadToEnd();
if (!string.IsNullOrWhiteSpace(content))
{
response = new HTTPResponseDTO <T>()
{
HttpStatusCode = resp.StatusCode,
Body = JsonHandler.Deserialize <T>(content)
};
}
else
{
Logger.WriteLog(logType: CommonEnum.LogLevelEnum.Error, methodBase: System.Reflection.MethodBase.GetCurrentMethod(), referenceNo: referenceNo, exception: webex);
}
}
else
{
Logger.WriteLog(logType: CommonEnum.LogLevelEnum.Error, methodBase: System.Reflection.MethodBase.GetCurrentMethod(), referenceNo: referenceNo, message: new StreamReader(respStream).ReadToEnd(), exception: webex);
}
}
else
{
Logger.WriteLog(logType: CommonEnum.LogLevelEnum.Error, methodBase: System.Reflection.MethodBase.GetCurrentMethod(), referenceNo: referenceNo, exception: webex);
}
return(response);
}
/// <summary>
/// Request URL [GET]
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="url">Target url.</param>
/// <returns>HTTPResponseDTO<T></returns>
public HTTPResponseDTO <T> Get <T>(string url, Dictionary <string, string> headers = default) where T : class
{
#region Declare return type with initial value
HTTPResponseDTO <T> response = new HTTPResponseDTO <T>();
string referenceNo = Guid.NewGuid().ToString();
#endregion
try
{
if (!string.IsNullOrWhiteSpace(url))
{
#region Create Request
HttpWebRequest httpWebRequest = (HttpWebRequest)System.Net.WebRequest.Create(url);
httpWebRequest.Timeout = AppSettings.HttpRequestTimeout;
httpWebRequest.Method = HttpEnum.HttpMethod.Get.GetDescription();
httpWebRequest.ContentType = HttpEnum.HttpContentType.JSON.GetDescription();
httpWebRequest.Accept = HttpEnum.HttpContentType.JSON.GetDescription();
#endregion
#region Append Headers
if (headers?.Any() ?? default)
{
foreach (KeyValuePair <string, string> item in headers)
{
httpWebRequest.Headers.Add(item.Key, item.Value);
}
}
#endregion
#region Ignore SSL certificate validation
if (AppSettings.IgnoreSSL)
{
ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;
}
#endregion
#region Get Response
HttpWebResponse httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
if (httpResponse != null)
{
string content = string.Empty;
using StreamReader streamReader = new StreamReader(httpResponse.GetResponseStream());
content = streamReader.ReadToEnd();
if (!string.IsNullOrWhiteSpace(content))
{
response = new HTTPResponseDTO <T>()
{
HttpStatusCode = httpResponse.StatusCode,
Body = JsonHandler.Deserialize <T>(content)
};
}
}
#endregion
}
}
catch (WebException webex)
{
response = WebExceptionHandler <T>(webex, referenceNo);
}
catch (Exception exception)
{
Logger.WriteLog(logType: CommonEnum.LogLevelEnum.Error, methodBase: System.Reflection.MethodBase.GetCurrentMethod(), referenceNo: referenceNo, exception: exception);
}
return(response);
}