Lua

Extract and Save PDF from SOAP XML

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

local chilkat = require("chilkat")

local xml = chilkat.Xml.new()

local success = xml:load_xml_file("qa_data/soap/soapWithPdf.xml")
if not success then
    print(xml.last_error_text)
    return
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>

local pdfElement = xml:find_child("s:Body|ObtenerPDFResponse|ObtenerPDFResult|a:PDF")
if not xml.last_method_success then
    print("Did not find the PDF element at the expected location.")
    return
end

success = pdfElement:save_binary_content("qa_output/out.pdf", false, false, "")
if not success then
    print(xml.last_error_text)
    return
end

print("Successfully extracted and saved the PDF.")