[FIXED] How to save changes in .env file in node.js

Issue

I use dotenv for read environment variable. like this:

let dotenv = require('dotenv').config({ path: '../../.env' });
console.log(process.env.DB_HOST);

Now I wanna to save changes in .env file. I can't find any way to save variable in .env file. What should I do?

process.env.DB_HOST = '192.168.1.62';

Solution

.env file

VAR1=var1Value
VAR_2=var2Value

index.js file

    const fs = require('fs') 
    const envfile = require('envfile')
    const sourcePath = '.env'
    console.log(envfile.parseFileSync(sourcePath))
    let parsedFile = envfile.parseFileSync(sourcePath);
    parsedFile.NEW_VAR = 'newVariableValue'
    fs.writeFileSync('./.env', envfile.stringifySync(parsedFile)) 
    console.log(envfile.stringifySync(parsedFile))

final .env file install required modules and execute index.js file

VAR1=var1Value
VAR_2=var2Value
NEW_VAR=newVariableValue

Answered By - Abdul Aleem

Answer Checked By - Senaida (PHPFixing Volunteer)