/Javascript/Node.js/How to read a csv file in nodejs

How to read a csv file in nodejs

Create csv file nodejs

const csv = require('csv-parser');
const fs = require('fs');

fs.createReadStream('data.csv')
  .pipe(csv())
  .on('data', (row) => {
    console.log(row);
  })
  .on('end', () => {
    console.log('CSV file successfully processed');
  });

Source: stackabuse.com

How to read a csv file in nodejs

$ npm i -s csv-parse

Source: stackabuse.com

Read and update csv file in nodejs

const fs = require('fs')
const csv = require('csv-parser')
const randomWords = require('random-words')
const users = [];
function generateUsername(firstname, surname) {
    return `${firstname[0]}-${surname}`.toLowerCase();
}
fs.createReadStream('input.csv')
  .pipe(csv())
  .on('data', function (row) {
    const username = generateUsername(row.Firstname, row.Surname);
    const password = randomWords(3).join("-");
    
    const user = {
        username,
        firstname: row.Firstname,
        surname: row.Surname,
        roles: row.Roles,
        password
    }
    users.push(user)
  })
  .on('end', function () {
      console.table(users)
      // TODO: SAVE users data to another file
    })

Source: heynode.com

Similar codes

7 votes397 views3 answers
Atob nodejs
Javascript Node.js
0 vote354 views1 answer
Creating room in ws node js
Javascript Node.js
0 vote368 views1 answer
Use ca certifcate node js
Javascript Node.js
16 votes385 views3 answers
Node mon install
Javascript Node.js
0 vote382 views1 answer
Typescript in nodejs
Javascript Node.js
15 votes390 views6 answers
Node dotenv
Javascript Node.js
0 vote360 views1 answer
Node js middleware for parsing formdata
Javascript Node.js
0 vote346 views1 answer
Set 404 handling via express in node
Javascript Node.js
3 votes531 views2 answers
Socket.io client send data node js server
Javascript Node.js
7 votes364 views2 answers
Create hash in node js
Javascript Node.js