dotenv exports undefined data

I’m trying to export data from dotenv file, but does not work, I already installed dotenv but still not working

dotenv file:

PORT=3000
MONGO_URI=mongodb+srv://userfg:<password>@cluster0.45m0c4f.mongodb.net/?retryWrites=true&w=majority
MONGO_DBNAME=inventario

JS file:

require('dotenv').config();
module.exports.Config = {
  port: process.env.PORT,
  mongoURI: process.env.MONGO_URI,
  mongodbname: process.env.MONGO_DBNAME
};

console.log(process.env.PORT);

I get undefined when I call process.env.PORT, process.env.MONGO_URI and process.env.MONGO_DBNAME

>Solution :

Avoid whenever possible to call require('dotenv').config(); directly.
Those variables are meant to be recovered as regular environment variables, in a transparent way.

The script trying to load the envfile is trying it too late, try to either perform the require('dotenv').config(); in the entry point (i.e. the index.js) or, my preferred appoach, as a dynamic require in the node command line:

node -r dotenv/config index.js

Then remove the require('dotenv').config(); altogether.

This approach is even documented in the dotenv project.

Take a look at this sample project if unsure about it.