fails where yaz-client/php-yaz works

[andrisi]

I know it's a free software, so I can't expect help in specific cases, but this might help you to iron out some possible bug in node-zoom2 vs. yaz-client. I'm searchin on tcp:tagetes2.oszk.hu:1616/any with the query @attr 1=31 1856 and it works fine with yaz-client, it gets the 1000 records the server is willing find max, but fails with errors in js. It works if I only request like 500 records. Using version 0.9.1 with nodejs 18. If I can help in any way, let me know. Thanks!

import zoom from 'node-zoom2'

import { EventEmitter } from 'events'
import { pEvent } from 'p-event'

await search()

async function search()
{
    let event = new EventEmitter()

    let z = zoom.Connection('tcp:tagetes2.oszk.hu:1616/any').set('preferredRecordSyntax', 'usmarc')
    
    let cnt = 0

    z.query('prefix', '@attr 1=31 1856').search((err, resultset) => {
    
        if(err)
        {
            console.log(err)
            return
        }
        
        let hits = resultset.size

        console.log(hits, 'hits')
    
        resultset.getRecords(0, hits, (err, records) => {

            if(err)
                console.log(err)
        
            while (records && records.hasNext()) 
            {
                let record = records.next()
    
                if(record.json)
                    process.stdout.write('.')
                else
                    console.log('error', cnt)

                cnt++
            }   
    
            event.emit('done', resultset)
    
        })   
    })
    
    await pEvent(event, 'done')
}