404 error at API while logging the app from simulator - asp.net

Question

I have created the simple login page in xamarin.forms,i have API for those logins,while running at postman iam getting the output,but while logging from the simulator iam getting the following error.
{StatusCode: 404, ReasonPhrase: 'Not Found', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
Cache-Control: private
Server: Microsoft-IIS/8.0
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Set-Cookie: ARRAffinity=639506ba4afdd530b4429c0d57e89977accb4b666a1e17dbe3fcc5c1fce369d5;Path=/;HttpOnly;Domain=snovahub.azurewebsites.net
Date: Wed, 13 Sep 2017 13:23:00 GMT
Content-Length: 3485
Content-Type: text/html; charset=utf-8
}}
My Api method is as follows:
#region Get results from api
public static async Task<T> GetResultFromApi<T>(string serviceUrl,bool isTrue=true)
{
try
{
GetConnection();
var response = await _httpClient.GetAsync(new Uri(SnovaHubApiUrls.SnovaHubWebUrl + serviceUrl));
var stringAsync = await response.Content.ReadAsStringAsync();
if (response.IsSuccessStatusCode)
{
var responseJson = stringAsync;
return JsonConvert.DeserializeObject<T>(responseJson);
}
LoggingManager.Error("Received error response: " + stringAsync);
return default(T);
}
catch (Exception exception)
{
LoggingManager.Error(exception);
return default(T);
}
}
#endregion

Answer 1

The issue is that you are setting the HttpClient.BaseAddress and then also passing in a full URL when calling HttpClient.GetAsync(). You need to choose one or the other. So:
Option 1:
private static void GetConnection() {
if (_httpClient == null) {
_httpClient = new HttpClient { BaseAddress = new Uri(SnovaHubApiUrls.SnovaHubWebUrl) }; //You MUST place a / (slash) at the end of your BaseAddress ("http://something.com/api/" for example)
}
}
Then in your GetResultFromApi() method:
...
var response = await _httpClient.GetAsync(serviceUrl); //You MUST NOT place a slash at the beginning of 'serviceUrl' when using BaseAddress
Option 2:
private static void GetConnection() {
if (_httpClient == null) {
_httpClient = new HttpClient(); //Removed BaseAddress
}
}
Then in your GetResultFromApi() method:
...
var response = await _httpClient.GetAsync(new Uri(SnovaHubApiUrls.SnovaHubWebUrl + serviceUrl)); //Passing full URL