(Visual FoxPro) 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.

Note: This example requires Chilkat v11.0.0 or greater.

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

LOCAL lnSuccess
LOCAL loHttp
LOCAL loReq
LOCAL loJson
LOCAL loResp

lnSuccess = 0

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

loHttp = CreateObject('Chilkat.Http')

loReq = CreateObject('Chilkat.HttpRequest')

* Load a JSON file containing strings with Polish chars.
loJson = CreateObject('Chilkat.JsonObject')
lnSuccess = loJson.LoadFile("qa_data/json/has_polish_chars.json")
IF (lnSuccess = 0) THEN
    ? loJson.LastErrorText
    RELEASE loHttp
    RELEASE loReq
    RELEASE loJson
    CANCEL
ENDIF

* Add the request params expected by the server-side:
loReq.AddParam("tytul",loJson.StringOf("tytul"))
loReq.AddParam("tresc",loJson.StringOf("tresc"))

* Indicate we wish to explicitly send the charset attribute in the HTTP request header.
loReq.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.

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

loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpReq("https://www.chilkatsoft.com/echoPost.cshtml",loReq,loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loReq
    RELEASE loJson
    RELEASE loResp
    CANCEL
ENDIF

? loHttp.LastHeader
? loResp.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.

loReq.SendCharset = 1
loReq.Charset = "windows-1250"
loReq.HttpVerb = "POST"
loReq.ContentType = "application/x-www-form-urlencoded"

lnSuccess = loHttp.HttpReq("https://www.chilkatsoft.com/echoPost.cshtml",loReq,loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loReq
    RELEASE loJson
    RELEASE loResp
    CANCEL
ENDIF

? loHttp.LastHeader
? loResp.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>
* --------------------------------------------------

RELEASE loHttp
RELEASE loReq
RELEASE loJson
RELEASE loResp