Question

I want to call one restful api synchronously. I want to know how can I hit service api synchronously? Is it possible to call api synchronously?

Answer 1

You do not need a synchronous call for your scenario. All you need is to handle the incoming response, and the asynchronous model does that perfectly.

Assuming that you are working with WebClient (easily adapted to any scenario):

WebClient client = new WebClient();
client.DownloadStringCompleted += (s,e) =>
{
     if (e.Result == "Paid")
        LoadingScreen.Visibility = Visibility.Collapsed;
};
client.DownloadStringAsync(new Uri("http://somerestapi.out.there"));
LoadingScreen.Visibility = Visibility.Visible;