C#

Send HTTP POST using non-UTF8 such as Windows-1250

See more HTTP Examples

Demonstrates how to specify the character encoding (charset) to be used for the body of an HTTP POST. C#

bool success = false;

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

Chilkat.Http http = new Chilkat.Http();

Chilkat.HttpRequest req = new Chilkat.HttpRequest();

//  Load a JSON file containing strings with Polish chars.
Chilkat.JsonObject json = new Chilkat.JsonObject();
success = json.LoadFile("qa_data/json/has_polish_chars.json");
if (success == false) {
    Debug.WriteLine(json.LastErrorText);
    return;
}

//  Add the request params expected by the server-side:
req.AddParam("tytul",json.StringOf("tytul"));
req.AddParam("tresc",json.StringOf("tresc"));

//  Indicate we wish to explicitly send the charset attribute in the HTTP request header.
req.SendCharset = true;

//  Send the POST
//  You can send the POST to the URL below.  It will respond with the request body in quoted-printable format.
//  Using quoted-printable, we can easily see the binary bytes for the accented chars.

req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";

Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
success = http.HttpReq("https://www.chilkatsoft.com/echoPost.cshtml",req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine(http.LastHeader);
Debug.WriteLine(resp.BodyStr);

//  Sample output:

//  --------------------------------------------------
//  POST /echoPost.cshtml HTTP/1.1
//  Host: www.chilkatsoft.com
//  Content-Type: application/x-www-form-urlencoded; charset=utf-8
//  Content-Length: 79
//  
//  <pre>tytul=3DPrzyk%C5%82ad&amp;tresc=3DPrzyk%C5%82ad
//  %82oszenie</pre>
//  --------------------------------------------------

//  We can see by the %C5%82 that utf-8 was sent, because %C5%82 is the 2-byte representation of a particular Polish char.

//  -----------------------
//  However.. we can change the charset used for the HTTP request by specifying the request object's charset.

req.SendCharset = true;
req.Charset = "windows-1250";
req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";

success = http.HttpReq("https://www.chilkatsoft.com/echoPost.cshtml",req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine(http.LastHeader);
Debug.WriteLine(resp.BodyStr);

//  Sample output...
//  You can see how the bytes used for the Polish chars are now 1-byte per char (i.e. using Windows-1250) 

//  --------------------------------------------------
//  POST /echoPost.cshtml HTTP/1.1
//  Host: www.chilkatsoft.com
//  Content-Type: application/x-www-form-urlencoded; charset=windows-1250
//  Content-Length: 70
//  
//  <pre>tytul=3DPrzyk%B3ad&amp;tresc=3DPrzyk%B3ad
//  e</pre>
//  --------------------------------------------------