json conversion problem if raw format is marcxml

[uleodolter]

It seems that the conversion to json or xml works if raw format is usmarc, but it does not work if raw format is marcxml. I am unsure if it is related to missing record xmlns for this datasource.

'use strict';

const zoom = require('node-zoom2');

var sru = zoom.connection('obv-at-obvsg.userservices.exlibrisgroup.com')
  .set('sru','get')
  .set('sru_version','1.2')
  .set('schema','marcxml')
  .set('databaseName', 'view/sru/43ACC_NETWORK')
  .query('cql', 'alma.other_system_number = (AC02222419)')
  .createReadStream()
  .on('data', (record) => {
    console.log(record.xml);
    console.log(record.json);  // parsing error
  });

[dengelke]

Thanks for the connection details, the <record xmlns=""> is a tad concerning. I'll try debugging this directly with Yaz later just to make sure this isn't a bug with node-zoom2.

[uleodolter]

Hi,

Now we have xmlns but i get JSON parsing error wenn running the script above. Maybe i my code is wrong and zoom does not automatically convert marcxml to json ?

<record xmlns="http://www.loc.gov/MARC21/slim">
^

SyntaxError: Unexpected token < in JSON at position 0
    at JSON.parse (<anonymous>)
    at Record.get json [as json] (/home/ulrich/Projects/alma/sru-test/node_modules/node-zoom2/lib/record.js:15:17)
    at ReadStream.zoom.connection.set.set.set.set.query.createReadStream.on (/home/ulrich/Projects/alma/sru-test/test.js:14:24)
    at emitOne (events.js:116:13)
    at ReadStream.emit (events.js:211:7)
    at addChunk (_stream_readable.js:263:12)
    at readableAddChunk (_stream_readable.js:250:11)
    at ReadStream.Readable.push (_stream_readable.js:208:10)
    at ReadStream.stream._read (/home/ulrich/Projects/alma/sru-test/node_modules/node-zoom2/lib/read-stream.js:55:8)
    at ReadStream.stream._zoomReady (/home/ulrich/Projects/alma/sru-test/node_modules/node-zoom2/lib/read-stream.js:113:10)

[dengelke]

Hi @uleodolter I'm able to replicate the same issue on zoomsh by the following:
zoomsh
set sru get
set sru_version 1.2
set schema marcxml
databaseName view/sru/43ACC_NETWORK
search cql: alma.other_system_number = (AC02222419)
show 0 1 json
Has the exact same error, must be an issue with the record and zoom (the indenting does look unusual)