Ruby

URL Encoding Charset in POST Query Params

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

require 'chilkat'

success = false

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

# We have the string "MÆRSK".
nameWin1252Encoded = "M%E6RSK"

sb = Chilkat::CkStringBuilder.new()
success = sb.DecodeAndAppend(nameWin1252Encoded,"url","windows-1252")

http = Chilkat::CkHttp.new()

# We're setting the session log filename so we can see the exact request sent.
http.put_SessionLogFilename("qa_output/sessionLog.txt")

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

req = Chilkat::CkHttpRequest.new()

# Set the Charset = "utf-8" to cause URL encoding to use utf-8.
req.put_Charset("utf-8")

req.AddParam("name",sb.getAsString())

req.put_HttpVerb("POST")
req.put_ContentType("application/x-www-form-urlencoded")

resp = Chilkat::CkHttpResponse.new()
success = http.HttpReq("https://www.chilkatsoft.com/something",req,resp)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

# 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

req.put_Charset("windows-1252")
req.put_HttpVerb("POST")
req.put_ContentType("application/x-www-form-urlencoded")

success = http.HttpReq("https://www.chilkatsoft.com/something",req,resp)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

# 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

req.put_Path("/something")
req.put_HttpVerb("POST")
req.put_ContentType("application/x-www-form-urlencoded")

req.put_Charset("utf-8")
success = http.HttpSReq("www.chilkatsoft.com",443,true,req,resp)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

# 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.

req.put_Path("/something")
req.put_HttpVerb("POST")
req.put_ContentType("text/xml")
success = req.LoadBodyFromString("<test>123</test>","utf-8")
req.put_Charset("utf-8")

# Remember... our request object still contains the query param added in the above call to AddParam.
success = http.HttpSReq("www.chilkatsoft.com",443,true,req,resp)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

# 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>