Data missing in the result (and other problems)

[jangxx]

So I'm getting this data from an api, but when I parse it with xml2js fields are added, renamed and missing.

Input XML:

<?xml version="1.0" encoding="UTF-8"?>
<searchRetrieveResponse xmlns="http://www.loc.gov/zing/srw/"><version>1.1</version><numberOfRecords>1</numberOfRecords><records><record><recordSchema>oai_dc</recordSchema><recordPacking>xml</recordPacking><recordData><dc xmlns:dnb="http://d-nb.de/standards/dnbterms" xmlns="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <dc:title>Elektronik ohne Ballast : Einf. in d. Schaltungstechnik d. industriellen Elektronik; mit 3 Tab. / von Otto Limann</dc:title>
  <dc:creator>Limann, Otto</dc:creator>
  <dc:publisher>München : Franzis-Verlag</dc:publisher>
  <dc:date>1973</dc:date>
  <dc:identifier xmlns:tel="http://krait.kb.nl/coop/tel/handbook/telterms.html" xsi:type="tel:ISBN">3-7723-5613-3 kart. : DM 30.00</dc:identifier>
  <dc:identifier xsi:type="dnb:IDN">740202677</dc:identifier>
  <dc:subject>20a Technik, Industrie, Gewerbe</dc:subject>
  <dc:format>396 S.</dc:format>
</dc></recordData><recordPosition>1</recordPosition></record></records><nextRecordPosition>2</nextRecordPosition><echoedSearchRetrieveRequest><version>1.1</version><query>3772356133</query><xQuery xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:nil="true"/></echoedSearchRetrieveRequest><extraResponseData><accountOf xmlns="">S*** SRU</accountOf></extraResponseData></searchRetrieveResponse>

The outputted object is unexpectedly huge:

{ searchRetrieveResponse: 
   { '$': { xmlns: 'http://www.loc.gov/zing/srw/' },
     version: [ '1.1' ],
     numberOfRecords: [ '1' ],
     records: 
      [ { record: 
           [ { recordSchema: [ 'RDFxml' ],
               recordPacking: [ 'xml' ],
               recordData: 
                [ { 'rdf:RDF': 
                     [ { '$': 
                          { 'xmlns:gndo': 'http://d-nb.info/standards/elementset/gnd#',
                            'xmlns:marcRole': 'http://id.loc.gov/vocabulary/relators/',
                            'xmlns:lib': 'http://purl.org/library/',
                            'xmlns:owl': 'http://www.w3.org/2002/07/owl#',
                            'xmlns:skos': 'http://www.w3.org/2004/02/skos/core#',
                            'xmlns:rdfs': 'http://www.w3.org/2000/01/rdf-schema#',
                            'xmlns:geo': 'http://www.opengis.net/ont/geosparql#',
                            'xmlns:umbel': 'http://umbel.org/umbel#',
                            'xmlns:rdau': 'http://rdaregistry.info/Elements/u/',
                            'xmlns:sf': 'http://www.opengis.net/ont/sf#',
                            'xmlns:rdf': 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
                            'xmlns:dcterms': 'http://purl.org/dc/terms/',
                            'xmlns:bibo': 'http://purl.org/ontology/bibo/',
                            'xmlns:isbd': 'http://iflastandards.info/ns/isbd/elements/',
                            'xmlns:foaf': 'http://xmlns.com/foaf/0.1/',
                            'xmlns:dc': 'http://purl.org/dc/elements/1.1/' },
                         'rdf:Description': 
                          [ { '$': { 'rdf:about': 'http://d-nb.info/740202677' },
                              'rdf:type': [ { '$': { 'rdf:resource': 'http://purl.org/ontology/bibo/Document' } } ],
                              'dcterms:medium': [ { '$': { 'rdf:resource': 'http://rdvocab.info/termList/RDACarrierType/1044' } } ],
                              'owl:sameAs': [ { '$': { 'rdf:resource': 'http://hub.culturegraph.org/resource/DNB-740202677' } } ],
                              'bibo:isbn10': 
                               [ { _: '3772356133',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'rdau:P60521': 
                               [ { _: 'kart. : DM 30.00',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'dc:identifier': 
                               [ { _: '(OColc)74126361',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'dc:title': 
                               [ { _: 'Elektronik ohne Ballast',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'dcterms:creator': [ { '$': { 'rdf:resource': 'http://d-nb.info/gnd/105782297' } } ],
                              'rdau:P60163': 
                               [ { _: 'München',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'dc:publisher': 
                               [ { _: 'Franzis-Verlag',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'rdau:P60333': 
                               [ { _: 'München : Franzis-Verlag, 1973',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'isbd:P1053': 
                               [ { _: '396 S.',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'dcterms:issued': 
                               [ { _: '1973',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'rdau:P60493': 
                               [ { _: 'Einf. in d. Schaltungstechnik d. industriellen Elektronik; mit 3 Tab.',
                                   '$': { 'rdf:datatype': 'http://www.w3.org/2001/XMLSchema#string' } } ],
                              'bibo:authorList': 
                               [ { 'rdf:Description': 
                                    [ { '$': { 'rdf:nodeID': 'node1a3jmb6mbx1324003' },
                                        'rdf:type': [ { '$': { 'rdf:resource': 'http://www.w3.org/1999/02/22-rdf-syntax-ns#Seq' } } ],
                                        'rdf:_1': [ { '$': { 'rdf:resource': 'http://d-nb.info/gnd/105782297' } } ] } ] } ] } ] } ] } ],
               recordPosition: [ '1' ] } ] } ],
     nextRecordPosition: [ '2' ],
     echoedSearchRetrieveRequest: 
      [ { version: [ '1.1' ],
          query: [ '3772356133' ],
          xQuery: 
           [ { '$': 
                { 'xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
                  'xsi:nil': 'true' } } ],
          recordSchema: [ 'RDFxml' ] } ],
     extraResponseData: [ { accountOf: [ { _: 'S*** SRU', '$': { xmlns: '' } } ] } ] } }

Not only are there new elements which aren't present in the original XML like rdau:P60493, but some like dc:creator are missing and replaced with dcterms:creator - a link to a resource. Is this correct behavior? Is there an option to parse the XML 'as-is', ignoring the namespaces (or whatever is causing this)?

[kaltri-n]

Hi, have you already solved this issue? Since I use the same API and have same problems.

[jangxx]

No, I switched to marc4js, which was able to parse the data correctly.

Edit: Important to note: I was parsing bibliographic data, which was available in many different formats. The one I tried and failed to parse above was Dublin Core. Not only did I switch to marc4js, I also changed my requests to request data in MARCXML format.

[Leonidas-from-XIV]

I am very confused, since there isn't really a way that xml2js would invent new elements.

[jangxx]

Well, I share your confusion, which is why I raised this issue in the first place.

[Leonidas-from-XIV]

Can you post some minimal code to reproduce?

[jangxx]

I'm gonna pass that question on to @kaltri-n since they seem to be currently using (or at least trying to use) this library. The code with which I initially stumbled across this issue is long gone.

[kaltri-n]

Hi guys,
I failed to parse the data in Dublin Core and so far I haven't looked up at other formats. So, unfortunately, I cannot be helpful in here :(