csvParser.js

// Author: Gerardo Junior <me@gerardo-junior.com
// Date: 10/14/2019, 8:53:55 PM
// URL: https://gist.github.com/gerardo-junior/2dfda6b7557e1334d1ef2ba495c4ad7c/

function csvParser(filename) {
    const fs = require('fs')
      ,   path = require('path')
      ,   filePath = path.join(__dirname, filename);

    return new Promise((resolve, reject) => {

        fs.readFile(filePath, { encoding: 'utf-8' }, function (err, file) {
            if (!err) {
                
                fileValues = file.split('\n')
                fileKeys = fileValues[0].split(',')
                fileValues.shift();
                parser = []
                
                fileValues.forEach(element => {
                    parserCusor = {}
                    element.split(',').forEach((element, index) => {
                        parserCusor[fileKeys[index]] = element.trim()
                    });

                    parser.push(parserCusor)
                });

                resolve(parser)
                
            } else {
                reject(err)
            }
        })

    })
}