Visual FoxPro

URL Encoding Charset in POST Query Params

See more HTTP Examples

Demonstrates how to control the URL encoding charset in POST query params. Visual FoxPro

LOCAL lnSuccess
LOCAL lcNameWin1252Encoded
LOCAL loSb
LOCAL loHttp
LOCAL loReq
LOCAL loResp

lnSuccess = 0

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

* We have the string "MÆRSK".
lcNameWin1252Encoded = "M%E6RSK"

loSb = CreateObject('Chilkat.StringBuilder')
lnSuccess = loSb.DecodeAndAppend(lcNameWin1252Encoded,"url","windows-1252")

loHttp = CreateObject('Chilkat.Http')

* We're setting the session log filename so we can see the exact request sent.
loHttp.SessionLogFilename = "qa_output/sessionLog.txt"

* First demonstrate a simple application/x-www-form-urlencoded POST

loReq = CreateObject('Chilkat.HttpRequest')

* Set the Charset = "utf-8" to cause URL encoding to use utf-8.
loReq.Charset = "utf-8"

loReq.AddParam("name",loSb.GetAsString())

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

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

* This is the request that is sent:
* Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

* 	POST /something HTTP/1.1
* 	Host: www.chilkatsoft.com
* 	Content-Type: application/x-www-form-urlencoded
* 	Content-Length: 15
* 
* 	name=M%C3%A6RSK

* ---------------------------------------------------------------
* Switch to windows-1252

loReq.Charset = "windows-1252"
loReq.HttpVerb = "POST"
loReq.ContentType = "application/x-www-form-urlencoded"

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

* This is the request that is sent:
* Notice that windows-1252 is used in the query param (the letter 'Æ' is %E6)

* 	POST /something HTTP/1.1
* 	Host: www.chilkatsoft.com
* 	Content-Type: application/x-www-form-urlencoded
* 	Content-Length: 12
* 
* 	name=M%E6RSK

* ---------------------------------------------------------------
* Let's do the same with HttpSReq, switching back to utf-8

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

loReq.Charset = "utf-8"
lnSuccess = loHttp.HttpSReq("www.chilkatsoft.com",443,1,loReq,loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loSb
    RELEASE loHttp
    RELEASE loReq
    RELEASE loResp
    CANCEL
ENDIF

* This is the request that is sent:
* Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

* 	POST /something HTTP/1.1
* 	Host: www.chilkatsoft.com
* 	Content-Type: application/x-www-form-urlencoded
* 	Content-Length: 15
* 
* 	name=M%C3%A6RSK

* ---------------------------------------------------------------
* Let's do a POST with XML body where the query params are in the HTTP request start line, 
* and the Content-Type is text/xml where the body of the request is XML.

loReq.Path = "/something"
loReq.HttpVerb = "POST"
loReq.ContentType = "text/xml"
lnSuccess = loReq.LoadBodyFromString("<test>123</test>","utf-8")
loReq.Charset = "utf-8"

* Remember... our request object still contains the query param added in the above call to AddParam.
lnSuccess = loHttp.HttpSReq("www.chilkatsoft.com",443,1,loReq,loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loSb
    RELEASE loHttp
    RELEASE loReq
    RELEASE loResp
    CANCEL
ENDIF

* This is the request that is sent:
* Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6)

* 	POST /something?name=M%C3%A6RSK HTTP/1.1
* 	Host: www.chilkatsoft.com
* 	Content-Type: text/xml
* 	Content-Length: 16
* 
* 	<test>123</test>

RELEASE loSb
RELEASE loHttp
RELEASE loReq
RELEASE loResp