how to read a csv file in nodejs

1const createCsvWriter = require('csv-writer').createObjectCsvWriter;
2const csvWriter = createCsvWriter({
3  path: 'out.csv',
4  header: [
5    {id: 'name', title: 'Name'},
6    {id: 'surname', title: 'Surname'},
7    {id: 'age', title: 'Age'},
8    {id: 'gender', title: 'Gender'},
9  ]
10});
11
12const data = [
13  {
14    name: 'John',
15    surname: 'Snow',
16    age: 26,
17    gender: 'M'
18  }, {
19    name: 'Clair',
20    surname: 'White',
21    age: 33,
22    gender: 'F',
23  }, {
24    name: 'Fancy',
25    surname: 'Brown',
26    age: 78,
27    gender: 'F'
28  }
29];
30
31csvWriter
32  .writeRecords(data)
33  .then(()=> console.log('The CSV file was written successfully'));
34

1const fs = require('fs')
2const csv = require('csv-parser')
3const randomWords = require('random-words')
4const users = [];
5function generateUsername(firstname, surname) {
6    return `${firstname[0]}-${surname}`.toLowerCase();
7}
8fs.createReadStream('input.csv')
9  .pipe(csv())
10  .on('data', function (row) {
11    const username = generateUsername(row.Firstname, row.Surname);
12    const password = randomWords(3).join("-");
13    
14    const user = {
15        username,
16        firstname: row.Firstname,
17        surname: row.Surname,
18        roles: row.Roles,
19        password
20    }
21    users.push(user)
22  })
23  .on('end', function () {
24      console.table(users)
25      // TODO: SAVE users data to another file
26    })
27

1const csv = require('csv-parser');
2const fs = require('fs');
3
4fs.createReadStream('data.csv')
5  .pipe(csv())
6  .on('data', (row) => {
7    console.log(row);
8  })
9  .on('end', () => {
10    console.log('CSV file successfully processed');
11  });
12

1$ npm i -s csv-parser
2

1$ npm i -s csv-parse
2