Getting an error when connecting to an API using HttpClient

Question

This is a problem on the HttpClientWrapper ,tried connecting to the API endpoint from the device/emulator?

string result = _failedResult;
        try
        {
            using (var httpClient = new HttpClient())
            {
                //Set the headers
                httpClient.DefaultRequestHeaders.Accept.Clear();
                using (HttpResponseMessage responce = httpClient.GetAsync(uri).Result)
                {
                    if (responce.IsSuccessStatusCode)
                    {
                        result = responce.Content.ReadAsStringAsync().Result;
                    }
                    else
                    {
                        var reasonPhrase = responce.ReasonPhrase;
                        result = responce.Content.ReadAsStringAsync().Result;
                        var errormessage = string.Format("Error:{0} {1} for uri :{2} ", reasonPhrase, result, uri.ToString());
                    }
                }
            }
        }
        catch(Exception ex)
        {
            var t=ex.InnerException;
            result = ex.Message;
        }

        return result;

Expecting i need to get phonenumbers list as a JSON format from the server.

Instead I'm getting the following error:

System.Net.WebException: Error: ConnectFailure (Connection refused)-> System.Net.Sockets.SocketException: Connection refused

Answer 1

If you're using an Android Emulator then asking for the localhost web service won't work, because you're looking at the localhost of the emulator.

You can fix this as follows:

Android Emulator has a magic address http://10.0.2.2:your_port that points to 127.0.0.1:your_port on your host machine. Take a look here . Because it points to an IP and not localhost, you need to go into your project solution, in .vs folder -> config-> applicationhost.config and change this <binding protocol="http" bindingInformation="*:44388:localhost" /> into , where 44388 is your port. Restart IIS Express and you're good to go.

So use: " http://10.0.2.2:44388/api/Common/getPhonenumbers "