(Ruby) 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 Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

http = Chilkat::CkHttp.new()

req = Chilkat::CkHttpRequest.new()

# Load a JSON file containing strings with Polish chars.
json = Chilkat::CkJsonObject.new()
success = json.LoadFile("qa_data/json/has_polish_chars.json")
if (success == false)
    print json.lastErrorText() + "\n";
    exit
end

# Add the request params expected by the server-side:
req.AddParam("tytul",json.stringOf("tytul"))
req.AddParam("tresc",json.stringOf("tresc"))

# Indicate we wish to explicitly send the charset attribute in the HTTP request header.
req.put_SendCharset(true)

# 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.

# resp is a CkHttpResponse
resp = http.PostUrlEncoded("https://www.chilkatsoft.com/echoPost.cshtml",req)
if (http.get_LastMethodSuccess() != true)
    print http.lastErrorText() + "\n";
    exit
end

print http.lastHeader() + "\n";
print resp.bodyStr() + "\n";

# 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.

req.put_SendCharset(true)
req.put_Charset("windows-1250")

# resp is a CkHttpResponse
resp = http.PostUrlEncoded("https://www.chilkatsoft.com/echoPost.cshtml",req)
if (http.get_LastMethodSuccess() != true)
    print http.lastErrorText() + "\n";
    exit
end

print http.lastHeader() + "\n";
print resp.bodyStr() + "\n";

# 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>
# --------------------------------------------------