@postman/csv-parse/samples/option.columns.function.js

CSV parsing implementing the Node.js `stream.Transform` API

const parse = require('../lib')
const assert = require('assert')

parse(`
"key_1","key_2"
"value 1","value 2"
`.trim(), {
  columns: header =>
    header.map( column => column.toUpperCase() )
}, function(err, records){
  assert.deepEqual(
    records, [{
      KEY_1: 'value 1',
      KEY_2: 'value 2'
    }]
  )
})