Xbase++

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. Xbase++

LOCAL nSuccess
LOCAL oHttp
LOCAL oReq
LOCAL oJson
LOCAL oResp

nSuccess := 0

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

oHttp := CreateObject("Chilkat.Http")

oReq := CreateObject("Chilkat.HttpRequest")

//  Load a JSON file containing strings with Polish chars.
oJson := CreateObject("Chilkat.JsonObject")
nSuccess := oJson:LoadFile("qa_data/json/has_polish_chars.json")
IF (nSuccess == 0)
    ? oJson:LastErrorText
    oHttp:destroy()
    oReq:destroy()
    oJson:destroy()
    RETURN
ENDIF

//  Add the request params expected by the server-side:
oReq:AddParam("tytul", oJson:StringOf("tytul"))
oReq:AddParam("tresc", oJson:StringOf("tresc"))

//  Indicate we wish to explicitly send the charset attribute in the HTTP request header.
oReq: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.

oReq:HttpVerb := "POST"
oReq:ContentType := "application/x-www-form-urlencoded"

oResp := CreateObject("Chilkat.HttpResponse")
nSuccess := oHttp:HttpReq("https://www.chilkatsoft.com/echoPost.cshtml", oReq, oResp)
IF (nSuccess == 0)
    ? oHttp:LastErrorText
    oHttp:destroy()
    oReq:destroy()
    oJson:destroy()
    oResp:destroy()
    RETURN
ENDIF

? oHttp:LastHeader
? oResp: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.

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

nSuccess := oHttp:HttpReq("https://www.chilkatsoft.com/echoPost.cshtml", oReq, oResp)
IF (nSuccess == 0)
    ? oHttp:LastErrorText
    oHttp:destroy()
    oReq:destroy()
    oJson:destroy()
    oResp:destroy()
    RETURN
ENDIF

? oHttp:LastHeader
? oResp: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>
//  --------------------------------------------------

oHttp:destroy()
oReq:destroy()
oJson:destroy()
oResp:destroy()