(Ruby) Extract and Save PDF from SOAP XML

Demonstrates how to extract and save PDF file that is embedded in SOAP XML (or any XML).

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

require 'chilkat'

xml = Chilkat::CkXml.new()

success = xml.LoadXmlFile("qa_data/soap/soapWithPdf.xml")
if (success != true)
    print xml.lastErrorText() + "\n";
    exit
end

# The XML we loaded looks like this:

# <?xml version="1.0" encoding="utf-8" ?>
# <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
#     <s:Body>
#         <ObtenerPDFResponse xmlns="http://xyz.org/">
#             <ObtenerPDFResult xmlns:a="http://schemas.xyz.org/something" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
#                 <a:CBB i:nil="true" />
#                 <a:CodigoConfirmacion i:nil="true" />
#                 <a:ErrorDetallado />
#                 <a:ErrorGeneral i:nil="true" />
#                 <a:FechaGenerada i:nil="true" />
#                 <a:FolioGenerado i:nil="true" />
#                 <a:OperacionExitosa>true</a:OperacionExitosa>
#                 <a:PDF>JVBERi0xLjQKJe...</a:PDF>
#                 <a:XML i:nil="true" />
#             </ObtenerPDFResult>
#         </ObtenerPDFResponse>
#     </s:Body>
# </s:Envelope>

# pdfElement is a CkXml
pdfElement = xml.FindChild("s:Body|ObtenerPDFResponse|ObtenerPDFResult|a:PDF")
if (xml.get_LastMethodSuccess() != true)
    print "Did not find the PDF element at the expected location." + "\n";
    exit
end

success = pdfElement.SaveBinaryContent("qa_output/out.pdf",false,false,"")
if (success != true)
    print xml.lastErrorText() + "\n";
    exit
end

print "Successfully extracted and saved the PDF." + "\n";