ffc-pay-etl-framework/app/lib/row-meta-data.js

A framework for creating ETL pipelines in node

// @ts-nocheck
const { Transform } = require('node:stream')

function rowMetaData () {
  return new Transform({
    readableObjectMode: true,
    writableObjectMode: true,
    decodeStrings: false,
    construct (callback) {
      this.rowId = 0
      callback()
    },
    transform (chunk, _, callback) {
      chunk['_rowId'] = this.rowId
      chunk['errors'] = []
      this.rowId += 1
      callback(null, chunk)
    }
  })
}

module.exports = {
  RowMetaData: rowMetaData
}