Problem is HttpClient

Question

Hi,

I have the below code that I am 100% sure about the URL and I am also verifying the PackageID when I Breakpoint.

But the problem is the result is always zero rows although when I use the same URL in Postman Ia m getting the correct output

What could be the reason please?

using (httpClient = new HttpClient())  
{  
    httpClient.BaseAddress = new Uri("https://www.jassimalrahma.com/package.php");  
  
    var content = new FormUrlEncodedContent(new[]  
    {  
        new KeyValuePair<string, string>("package", PackageID),  
    });  
  
    var response = await httpClient.PostAsync("https://www.jassimalrahma.com/package.php", content);  
  
    var result = await response.Content.ReadAsStringAsync();  
  
    List<PackageDetailsData> data = JsonSerializer.Deserialize<List<PackageDetailsData>>(result);  
  
    LabelPackageName.Text = data[0].package_name;  
}  

Here is my Postman:

Answer 1

It's likely that you're reading the body of a bad response. Under your var response = ... like try adding this:

   response.EnsureSuccessStatusCode();  

My bet is the request was a 300 range status code (redirect). If that's the case you check the response.Headers.Location property to see where the server is trying to redirect you.

Answer 2

you are probably send a bad id. the following code works:

using System.Net.Http;  
using System.Text.Json;  
  
var PackageID = "2";  
using (var httpClient = new HttpClient())  
{  
    httpClient.BaseAddress = new Uri("https://www.jassimalrahma.com/package.php");  
    var content = new FormUrlEncodedContent(new[]  
    {  
         new KeyValuePair<string, string>("package", PackageID),  
    });  
  
    var response = await httpClient.PostAsync("https://www.jassimalrahma.com/package.php", content);  
  
    var result = await response.Content.ReadAsStringAsync();  
  
    List<PackageDetailsData> data = JsonSerializer.Deserialize<List<PackageDetailsData>>(result);  
  
    Console.WriteLine(data[0].package_name);  
}  
  
  
public class PackageDetailsData  
{  
    public int package_id { get; set; }  
    public string? package_uuid { get; set; }  
    public string? package_name { get; set; }  
}