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Import XML via Http

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  • Import XML via Http

    Is there a way to easily download and import an XML file via HTTP?

    Here's what I'm doing now:

    xml=http_get_page("http://www.website.com/myxmlfile.xml")
    dom=*xml_document(xml)

    Problem:
    The http_get_page function downloads the file as html; therefore, when the page is loaded into the xml parser (dom=*xml_document(xml)), it's failing.

    Do I have to write code to initially remove the http header information and convert any "&lt;", "&gt:" to "<" and ">" in the page before loading it into the xml parser?

    Thanks,
    Bob A.
    Robert Adler
    Alpha Anywhere Programmer/Developer
    Eagle Dbase Solutions, LLC
    http://www.eagledbasesolutions.com/

    sigpic

  • #2
    Re: Import XML via Http

    Try
    Code:
    dim result as P
    
    result = http_get("http://www.website.com/myxmlfile.xml")
    
    dom = *xml_document(result.body)
    The site I tested on is http://www.w3.org/2003/05/soap-envelope.

    I had to run the http_get 3 times before it returned the proper body. The first two times it returned an html body that included a redirect link and a status code of 301. However the link was the same as the url that was used in the http_get. If you see the same and you are sure of your URI then you could put in some loop to try a number of times till you get a staus code of 200
    Tim Kiebert
    Eagle Creek Citrus
    A complex system that does not work is invariably found to have evolved from a simpler system that worked just fine.

    Comment


    • #3
      Re: Import XML via Http

      Hi Tim,

      Thanks for your help. It seems http_get is the best function to use. I am able to load the xml into the parser, but I have to first copy the xml.body into a char variable.

      Anyway, my issue now is this: the xml is not pure. The file contains some html tags (font, strong, etc.) for presentation in a browser. It seems I will have to write a routine to remove these tags from the file before loading the text into the xml parser object. Do you know of a better way to strip out the html tags so the text only contains the xml elements.

      Thanks,
      Bob A.
      Robert Adler
      Alpha Anywhere Programmer/Developer
      Eagle Dbase Solutions, LLC
      http://www.eagledbasesolutions.com/

      sigpic

      Comment


      • #4
        Re: Import XML via Http

        I would start with one of the STRITRAN functions. The STRINGSCANNER object and its methods are also good.

        If you start from this page there are lots of functions to choose from. start with the 'replacement' section.
        Tim Kiebert
        Eagle Creek Citrus
        A complex system that does not work is invariably found to have evolved from a simpler system that worked just fine.

        Comment


        • #5
          Re: Import XML via Http

          I was able to remove the html tags so now I have pure xml to work with; however, I just realized I'm not getting the full xml file in the download. I tried increasing the timeout parameter, but that didn't work.

          It seems that http_get() is timing out but I don't know why. It's returning an error_code of 0 and no error_text. Any idea what's wrong? Is there a limit to the number of bytes that can be downloaded? Is there a chance that the file I'm trying to download is too big?

          Thanks for any help you can offer.

          Bob A.
          Robert Adler
          Alpha Anywhere Programmer/Developer
          Eagle Dbase Solutions, LLC
          http://www.eagledbasesolutions.com/

          sigpic

          Comment

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