Xojo Plugin

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. Xojo Plugin

Dim success As Boolean
success = False

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

Dim http As New Chilkat.Http

Dim req As New Chilkat.HttpRequest

// Load a JSON file containing strings with Polish chars.
Dim json As New Chilkat.JsonObject
success = json.LoadFile("qa_data/json/has_polish_chars.json")
If (success = False) Then
    System.DebugLog(json.LastErrorText)
    Return
End If

// 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"

Dim resp As New Chilkat.HttpResponse
success = http.HttpReq("https://www.chilkatsoft.com/echoPost.cshtml",req,resp)
If (success = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

System.DebugLog(http.LastHeader)
System.DebugLog(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) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

System.DebugLog(http.LastHeader)
System.DebugLog(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>
// --------------------------------------------------