Use csv-parser to only return file headers

Question

I'm looking at the NPM package csv-parser that parses csv files to JSON. Based on the example provided, you can read a csv file row by row in the following manner:

fs.createReadStream('data.csv')
  .pipe(csv())
  .on('data', (rowData) => console.log(rowData))
  .on('end', () => { console.log("done reading the file") });

Is there any way I can only return the header values of the CSV file instead?

Answer 1

You can use headers event

fs.createReadStream('data.csv')
  .pipe(csv())
  .on('headers', (headers) => {
    console.log(`First header: ${headers[0]}`)
  })

From official docs

https://www.npmjs.com/package/csv-parser#headers-1