HttpClient does not exist in .net 4.0: what can I do?

Question

Ok i edited my code i dont get errors but the messageBox.Show return nothing empty box. Maybe i need to add something in the referrer string ? I didnt understand what is the referrer and what should i put there. And i have a key already im using it in my code. The key is a long string and im using it in my code i dont use with the referrer. Why it dosent translate the word "hi" ? ``` using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Globalization; using System.IO; using System.Net; using System.Web; using System.Web.Script.Serialization; namespace WindowsFormsApplication2 { public partial class Form1 : Form { private JavaScriptSerializer _Serializer = new JavaScriptSerializer(); public Form1() { InitializeComponent(); string f = TranslateText("hi", "English", "German", "", ""); MessageBox.Show(f); } private void Form1_Load(object sender, Ev…

Accepted Answer

You can use WebClient.

Or (if you need more fine-grained control over the request) HttpWebRequest

Or, HttpClient in System.Net.Http.dll.

Here's a "translation" to HttpWebRequest (needed rather than WebClient in order to set the referrer). (Uses System.Net and System.IO):

```
    HttpWebRequest http = (HttpWebRequest)HttpWebRequest.Create(requestUrl))
    http.Referer = referrer;
    HttpWebResponse response = (HttpWebResponse )http.GetResponse();
    using (StreamReader sr = new StreamReader(response.GetResponseStream()))
    {
        string responseJson = sr.ReadToEnd();
        // more stuff
    }
```

HttpClient does not exist in .net 4.0: what can I do?

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