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

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

Chilkat Lianja Extension Download

Chilkat Lianja Extension

loHttp = createobject("CkHttp")

//  Any string unlocks the component for the 1st 30-days.
llSuccess = loHttp.UnlockComponent("Anything for 30-day trial")
if (llSuccess <> .T.) then
    ? loHttp.LastErrorText
    release loHttp
    return
endif

//  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.
lcStrXml = loHttp.QuickGetStr("http://isbndb.com/api/books.xml?access_key=OV8L2Y9I&results=details&index1=isbn&value1=0443074348")
if (loHttp.LastMethodSuccess <> .T.) then
    ? loHttp.LastErrorText
    release loHttp
    return
endif

loXml = createobject("CkXml")
llSuccess = loXml.LoadXml(lcStrXml)

//  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:
llSuccess = loXml.FirstChild2()
llSuccess = loXml.FirstChild2()

//  Show the Title and AuthorsText:
? loXml.GetChildContent("Title")
? loXml.GetChildContent("AuthorsText")

//  Show the publisher_id attribute of the PublisherText node:

loXml2 = loXml.FindChild("PublisherText")
? loXml2.GetAttrValue("publisher_id")

release loXml2

//  Save the XML to a file:
llSuccess = loXml.SaveXml("book.xml")


release loHttp
release loXml

 

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