Properly handling HttpClient exceptions within async / await

As you are using HttpClient, try to use response.EnsureSuccessStatusCode();

Now HttpClient will throw exception when response status is not a success code.

try
{
    HttpResponseMessage response = await client.GetAsync("http://www.ajshdgasjhdgajdhgasjhdgasjdhgasjdhgas.tk/");
    response.EnsureSuccessStatusCode();    // Throw if not a success code.

    // ...
}
catch (HttpRequestException e)
{
    // Handle exception.
}

ORIGINAL SOURCE OF THE CODE: http://www.asp.net/web-api/overview/advanced/calling-a-web-api-from-a-net-client