Retrieve value from XML file with &lt

Gurn69
Gurn69 Member Posts: 10
in NAV Three Tier
Hi

I am trying to retrieve values from a retrieved XML file after making a POST webservice call. The structure of the returned XML file is -

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/&quot; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance&quot; xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt;
<soap:Body>
<CalculateRateResponse xmlns="http://external website address">
<CalculateRateResult><Connote Entity="PK0"><_currency>&#163;</_currency><accno>123456</accno><carrierid>4</carrierid><carriername>Test Carrier1</carriername><carrzone>ZONE 1</carrzone><chgwgt>5</chgwgt><condate>31/03/2021</condate><currency>GBP</currency><datelong>20210331</datelong><deliverytimeraw>[none]</deliverytimeraw><freightlinedetails><amt>10</amt><cube>0.1</cube><desc>Piece</desc><ref>101002</ref><wgt>5</wgt><youritemdesc>MEXICO Swivel Chair, black</youritemdesc></freightlinedetails><fromzone>ZONE 1</fromzone><grandtotmrkup>0.00</grandtotmrkup><grandtotpostpickuprate>0.00</grandtotpostpickuprate><grandtotrate>0.00</grandtotrate><gstamount>0.00</gstamount><gstonmrkup>0.00</gstonmrkup><mrkupchrg>0.00</mrkupchrg><postpickupgst>0.00</postpickupgst><rate>0.00</rate><rateerror>An Applicable rate could not be found!</rateerror><rateerrorgeoloc>Unable to determine Geo Location</rateerrorgeoloc><recaccno>TEST</recaccno><recaddr><add1>Station Road, 21</add1><add3>Cambridge</add3><add4>Cambridgeshire</add4><add5>CB1 2FB</add5><add6>UNITED KINGDOM</add6></recaddr><recloc>0,0</recloc><recname>TEST RECEIVER</recname><rtzexpire>999912312359</rtzexpire><sendaddr><add1>7122 South Ashford Street</add1><add3>London</add3><add4>Greater London</add4><add5>W2 8HG</add5><add6>UNITED KINGDOM</add6></sendaddr><sendloc>0,0</sendloc><sendname>SENDER NAME</sendname><service>PARCEL</service><taxrate>20</taxrate><totalcost>0.00</totalcost><totcostplusmrkup>0.00</totcostplusmrkup><totcube>0.1</totcube><totdgcharge>0.00</totdgcharge><totitems>10</totitems><totlevy>0.00</totlevy><totpostpickuprecovery>0.00</totpostpickuprecovery><totsurchrg>0.00</totsurchrg><totwgt>5</totwgt></Connote></CalculateRateResult>
</CalculateRateResponse>
</soap:Body>
</soap:Envelope>

From the returned file I would like to extract certain values such as carriername (Test Carrier1) however struggling. Please could you advise on what the best approach would be to extract fields from a file with a structure like the above

Thanking you all in advance for any assistance.

Regards
Gurn

Answers

  • irasoelbaks
    irasoelbaks Member Posts: 119
    If it's valid XML you could use the XML Buffer. If not valid, you need to make &lt proper then you could try performing some string replace actions on the response output.
  • Gurn69
    Gurn69 Member Posts: 10
    I have created a function to try and find the value..

    Result := CallWebServiceCalcRate('CalculateRate', Parameters);

    Parameters is the XML document being passed into the webservice call with Result being the XML document being returned.

    TotalCost := GetField(Result, 'Body/CalculateRateResponse/CalculateRateResult/totalcost');

    GetField function created to locate the totalcost value (<totalcost>0.00</totalcost> from above file structure)


    local procedure GetField(var XmlD: XmlDocument; Path: text): text
    var
    V: Variant;
    N: XMLNode;
    begin
    if XmlD.SelectSingleNode(Path, N) then
    exit(N.AsXmlElement().InnerText);
    end;

    However the function is returning blank as it fails to process the exit action so it is not finding the node. Could this be anything to do with not removing the soapenv:Envelope before trying to locate node. if so how do i remove this.
  • irasoelbaks
    irasoelbaks Member Posts: 119
    I think the problem is due to the xmlns attribute but I'm not 100% sure. There are some topics about this on Mibuso and I also saw this url. Maybe it helps you further:

    https://community.dynamics.com/ax/f/microsoft-dynamics-ax-forum/350713/how-to-parse-xml-with-xpath-and-namespace/937072

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