Signup user to ASP.NET Identity from Xamarin - asp.net

Question

I have been stuck all day on a stupid problem with registering a user to my application.
Here is my code once the 'Register' button is clicked:
public ICommand RegisterCommand
{
get
{
return new Command(async() =>
{
var isSuccess = await _apiServices.RegisterAsync(Email, Password, ConfirmPassword);
if (isSuccess){
Message = "Registered Successfully";
}
else
{
Message = "Retry later";
}
});
}
}
Api services Register Async method:
public async Task<bool> RegisterAsync(string email, string password, string confirmPassword)
{
try
{
System.Diagnostics.Debug.WriteLine("Email: "+email);
var client = new HttpClient();
var model = new RegisterBindingModel
{
Email = email,
Password = password,
ConfirmPassword = confirmPassword
};
var json = JsonConvert.SerializeObject(model);
HttpContent content = new StringContent(json);
// content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
var response = await client.PostAsync("http://localhost:63724/api/Account/Register", content);
if (response.IsSuccessStatusCode)
{
return true;
}
return false;
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Error: "+e);
throw;
}
}
}
The Error that I get is:
System.Net.Http.HttpRequestException: An error occurred while sending the request ---> System.Net.WebException: Error: ConnectFailure (Connection refused) ---> System.Net.Sockets.SocketException: Connection refused
at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x000b6] in <6c708cf596db438ebfc6b7e012659eee>:0
at System.Net.WebConnection.Connect (System.Net.HttpWebRequest request) [0x0016d] in <6c708cf596db438ebfc6b7e012659eee>:0
--- End of inner exception stack trace ---
To me this is very frustrating as I can register a use using Postman with the exact same localhost address. I am following Houssem Dellai's Xamarin.Forms mvc web api tutorials which can be found here

Answer 1

I had an issue with httpclient during the development of my app. I believe there was an issue with the cross-platform implementation of the httpclient class. iOS didn't know how to handle it.
Instead I implemented a very simple httpclient library called flurl: http://tmenier.github.io/Flurl/
First, you will need to install flurl in all project directories (iOS, Android, and the PCL) then the implementation is very simple.
using Flurl;
using Flurl.Http;
public async Task<User> CreateUserAsync(RegisterUserModel userModel)
{
string url = "your/backend/here";
//resp is a user object received and automatically converted into a c# object through the use of .ReceiveJson<typeofobject>();
var resp = await (url).PostJsonAsync(userModel)
.ReceiveJson<User>();
if (resp.LoginSession != null)
{
//Raise my registered event to let other classes know to proceed
OnUserRegistered(resp);
}
return resp;
}
As you can see it makes httpclient implementation very simple. Hopefully this helps.