(PowerBuilder) Send HTTP POST using non-UTF8 such as Windows-1250

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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Http
oleobject loo_Req
oleobject loo_Json
integer li_Success
oleobject loo_Resp

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

loo_Http = create oleobject
// Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Req = create oleobject
// Use "Chilkat_9_5_0.HttpRequest" for versions of Chilkat < 10.0.0
li_rc = loo_Req.ConnectToNewObject("Chilkat.HttpRequest")

// Load a JSON file containing strings with Polish chars.
loo_Json = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

li_Success = loo_Json.LoadFile("qa_data/json/has_polish_chars.json")
if li_Success = 0 then
    Write-Debug loo_Json.LastErrorText
    destroy loo_Http
    destroy loo_Req
    destroy loo_Json
    return
end if

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

// Indicate we wish to explicitly send the charset attribute in the HTTP request header.
loo_Req.SendCharset = 1

// 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.

loo_Resp = loo_Http.PostUrlEncoded("https://www.chilkatsoft.com/echoPost.cshtml",loo_Req)
if loo_Http.LastMethodSuccess <> 1 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Req
    destroy loo_Json
    return
end if

Write-Debug loo_Http.LastHeader
Write-Debug loo_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.

destroy loo_Resp

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

loo_Req.SendCharset = 1
loo_Req.Charset = "windows-1250"

loo_Resp = loo_Http.PostUrlEncoded("https://www.chilkatsoft.com/echoPost.cshtml",loo_Req)
if loo_Http.LastMethodSuccess <> 1 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Req
    destroy loo_Json
    return
end if

Write-Debug loo_Http.LastHeader
Write-Debug loo_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>
// --------------------------------------------------

destroy loo_Resp


destroy loo_Http
destroy loo_Req
destroy loo_Json