how to use HttpClient in WindowsPhone 8

Question

Hey everyone i have a big problem with this thing. i'm trying to use HttpClient method in my new project. i try this code:

        var httpClient = new HttpClient();
        var request = await httpClient.GetAsync(new Uri("http://www.google.com/",                     UriKind.RelativeOrAbsolute));
        var txt = request.Content.ReadAsStringAsync();
        MessageBox.Show(txt.Result);

i think it is true code because i wrote it in Console app and it works fine. Then i opened a new WindowsPhone 8 project and write this code.And code doesn't work, it returns Null. Sometimes it works but generally not. i thought my Visual Studio wasnt work good and i deleted it and re-install it, and nothing had been changed. what do you think?

score 1 · Answer 1 · answered Mar 03 '14 at 02:54

try this.

var httpClient = new HttpClient();
        var response = await httpClient.GetAsync(new Uri("http://www.google.com/",                     UriKind.RelativeOrAbsolute));
        response.EnsureSuccessStatusCode();
        var txt = response.Content.ReadAsStringAsync();
        MessageBox.Show(txt.Result);

make the breakpoint in the line response.EnsureSuccessStatusCode(); to make sure response httpcode is 200 every time.

score 0 · Answer 2 · answered Jul 01 '13 at 16:12

0

You shouldn't be calling Result. Try this instead:

var httpClient = new HttpClient();
var request = await httpClient.GetAsync(new Uri("http://www.google.com/", UriKind.RelativeOrAbsolute));
var txt = await request.Content.ReadAsStringAsync();
MessageBox.Show(txt);

answered Jul 01 '13 at 16:12

Stephen Cleary

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Do you mean `request` or `txt`? – Stephen Cleary Jul 01 '13 at 16:32
Do you have the `Microsoft.Net.Http` NuGet package installed? – Stephen Cleary Jul 01 '13 at 16:40
1

Check for error code from the `request`, like by calling `EnsureSuccessStatusCode()` method on it. – Haspemulator Jul 01 '13 at 16:42
@StephenCleary yes i have. – afrikaan Jul 01 '13 at 16:43
@Haspemulator it trows a HttpRequestException – afrikaan Jul 01 '13 at 16:48
1

@KaanYurdakök that's great! It means, your http request is not working for some reason. Check `Message` property of the thrown exception to find out what's exactly wrong. – Haspemulator Jul 01 '13 at 16:49
@Haspemulator isn't it funny ,it says '404- Not found' ? – afrikaan Jul 01 '13 at 17:00
Looks like you've been banned on Google. :) – Haspemulator Jul 01 '13 at 17:16
http://stackoverflow.com/questions/21576501/how-to-send-post-request-with-parameters-asynchronously-in-windows-phone-8 checkout answer in above link. – Ashish-BeJovial Feb 26 '14 at 06:27

how to use HttpClient in WindowsPhone 8

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