PROGRAD LABS | NODE | FILE OPERATIONS

Learning Goals

In this exercise, the goal is to learn various node modules:

os module
fs module
crypto

Getting started

Fork this repo
Clone this repo

Whenever you create a first significant change, you should make your first commit.

Follow these guidelines to add, commit and push changes.

In the end of this document, you will find guidelines on how to submit the exercise.

Introduction

In this lab we will work on fetching data from one file into another and encrypting the data inside the file. Import the following modules in index.js

os
fs
crypto

PROGRESSION 1 | data.js

Create a file called data.js and create data module inside it with three arguments name, year and qualification.

module.exports.data=(name,year,qualification)=>{
    data={
        name:name,
        Year:year,
        Qualification:qualification
    }
    return data
}

PROGRESSION 2 | message.txt

Create a text file called message.txt. You need to fetch the data from data.js and write the value inside message.txt

PROGRESSION 3 | index.js

Your task in this progression is to fetch all the data from data.js and then you need to append the data in message.txt. Import all the necessary modules inside index.js. fetch the userinfo from the os module and the value to data.js can be passed as

var userdata= value.data("Prograd",2020,"BE")

PROGRESSION 4 | CYRPTO

Your task in this iteration to use crypto module and encrypt the password.

const crypto = require('crypto');
const password = crypto.createHmac('sha256', secret).update('Prograd').digest('hex');

Output

message.txt
ProGrad Details
   UserId ->        1000,
   Name ->          Prograd,
   Year ->          2020,
   Qualification -> BE,
   UserName->       prasanth,
   Password ->      f61a89be62891ce83afb2ac9d165f4e3566cadec3481d50d7f03630f796af55e

And you have reached the end!

Happy Coding! ❤️

imgokulkanish/lab-node-file-operations