(Perl) Fetch ISBN XML from isbndb.com and Parse

Demonstrates sending a query to isbndb.com and parsing the XML response.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

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

$http = chilkat::CkHttp->new();

# The access_key in this URL is a valid access key, but limited to 100 queries per day.
# If the key does not work, it may be that others were testing and exhausted the limit.
$strXml = $http->quickGetStr("http://isbndb.com/api/books.xml?access_key=OV8L2Y9I&results=details&index1=isbn&value1=0443074348");
if ($http->get_LastMethodSuccess() != 1) {
    print $http->lastErrorText() . "\r\n";
    exit;
}

$xml = chilkat::CkXml->new();
$success = $xml->LoadXml($strXml);

# The XML returned for this URL is the following:

# <?xml version="1.0" encoding="UTF-8" ?>

# <ISBNdb server_time="2007-10-25T14:07:25Z">
#     <BookList total_results="1" page_size="10" page_number="1" shown_results="1">
#         <BookData book_id="diagnostic_histopathology_of_tumors_2_volume_set_with_cd_rom" isbn="0443074348">
#             <Title>Diagnostic Histopathology of Tumors: 2-Volume Set with CD-ROMs</Title>
#             <TitleLong>Diagnostic Histopathology of Tumors: 2-Volume Set with CD-ROMs (Diagnostic Histopathology of Tumors (Fletcher))</TitleLong>
#             <AuthorsText>Christopher D. M. Fletcher (Editor)</AuthorsText>
#             <PublisherText publisher_id="churchill_livingstone">Churchill Livingstone</PublisherText>
#             <Details dewey_decimal="616" physical_description_text="2166 pages" language="" edition_info="Hardcover; 2007-03-13" dewey_decimal_normalized="616" lcc_number="" change_time="2006-12-13T14:53:42Z" price_time="2007-10-25T01:12:13Z" />
#         </BookData>
#     </BookList>
# </ISBNdb>

# First, navigate to the BookData node:
$success = $xml->FirstChild2();
$success = $xml->FirstChild2();

# Show the Title and AuthorsText:
print $xml->getChildContent("Title") . "\r\n";
print $xml->getChildContent("AuthorsText") . "\r\n";

# Show the publisher_id attribute of the PublisherText node:

# xml2 is a Xml
$xml2 = $xml->FindChild("PublisherText");
print $xml2->getAttrValue("publisher_id") . "\r\n";

# Save the XML to a file:
$success = $xml->SaveXml("book.xml");