freeplanet_serverside/server/config/config.js

// still in app.js
const node_env = process.env.NODE_ENV || 'production';
var file = `.env.${node_env}`;

// GLOBALI (Uguali per TUTTI)
process.env.LINKVERIF_REG = '/vreg';
process.env.LINK_REQUEST_NEWPASSWORD = '/requestnewpwd';
process.env.LINK_UPDATE_PASSWORD = '/updatepwd';
process.env.NOME_APP1 = 'FreePlanet';
process.env.KEY_APP_ID='KKPPAA5KJK435J3KSS9F9D8S9F8SD98F9SDF';

console.log("FILE : " + file);
require('dotenv').config({path: file});

process.env.DATABASE = process.env.DATABASE || 'FreePlanet';

process.env.MONGODB_URI = process.env.DOMAIN + process.env.DATABASE;