HttpClient Request for Windows Phone 8.1 C#

HttpClient Request

HttpClient class provides a base class for sending HTTP requests and receiving HTTP responses from a resource identified by a URI.

Namespace: Windows.Web.Http;

Assembly:  Windows.Web.Http (in Windows.Web.Http.dll)

 

 

 

 

 

 

 

Simple HttpClient Request  GET

 

This is a simple example for get a string as a response, from HttpClient request.

 

using Windows.Web.Http;

 

public async void GetaString()
{
    try 
    {
        //Create HttpClient
        HttpClient httpClient = new HttpClient();
 
       //Define Http Headers
       httpClient.DefaultRequestHeaders.Accept.TryParseAdd("application/json");
 
        //Call
        string ResponseString = await httpClient.GetStringAsync(
            new Uri("http://www.csharpteacher.com/Api/getinfo")); 
            //Replace current URL with your URL
     }
 
     catch(Exception ex)
     {
         //....
     }
}

 

Get full response HttpClient Request  GET

 

If you want to get all the information ( like Headers, Response codes  etc..) with response then this method is the suitable one.

public async void GetFullResponse()
{
    try
    {
        //Create Client 
        var client = new HttpClient();
 
        //Define URL. Replace current URL with your URL

//Current URL is not a valid one


        var uri = new Uri("http://www.csharpteacher.com/Api/getinfo"); 
 
        //Call. Get response by Async
        var Response = await client.GetAsync(uri);
 
        //Result & Code
        var statusCode = Response.StatusCode;
 
        //If Response is not Http 200 
        //then EnsureSuccessStatusCode will throw an exception
        Response.EnsureSuccessStatusCode();
 
        //Read the content of the response.
        //In here expected response is a string.
        //Accroding to Response you can change the Reading method.
        //like ReadAsStreamAsync etc..
        var ResponseText = await Response.Content.ReadAsStringAsync();
    }
 
    catch(Exception ex)
    {
        //...
    }
}

HttpClient How to read response headers

public async void ReadHeaders()
{
    try 
    {
        //Create Client 
        var client = new HttpClient();
 
        //Define URL. Replace current URL with your URL
        //Current URL is not a valid one
        var uri = new Uri("http://www.csharpteacher.com/Api/getinfo");
 
        //Call. Get response by Async
        var Response = await client.GetAsync(uri);
 
        //If Response is not Http 200 
        //then EnsureSuccessStatusCode will throw an exception
        Response.EnsureSuccessStatusCode();
 
        //Grab each header one by one
        foreach (var header in Response.Headers)
        {
            //Header
            string headerItem = header.Key + " = " + header.Value;
 
            //Showing each header one by one in a MessageDialog
            showMessage(header.Key + " = " + header.Value);
        }
    }
    catch (Exception ex)
    {
        //...
    }
}
 
//Showing header in a MessageDialog
public async void showMessage(string header)
{
    MessageDialog message = new MessageDialog(header);
    await message.ShowAsync();
    
}

Hope this will helpful
Thank You :)