config dotenv

config/config.js

+require('dotenv').config()
+
 const config = {
   env: process.env.NODE_ENV || 'development',
   port: process.env.PORT || 3030,

package.json

@@ -16,6 +16,7 @@
   "dependencies": {
     "body-parser": "^1.19.0",
     "cors": "^2.8.5",
+    "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "helmet": "^4.2.0",
     "mongoose": "^5.10.12"

yarn.lock

@@ -118,6 +118,11 @@ destroy@~1.0.4:
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
   integrity sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=
 
+dotenv@^8.2.0:
+  version "8.2.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-8.2.0.tgz#97e619259ada750eea3e4ea3e26bceea5424b16a"
+  integrity sha512-8sJ78ElpbDJBHNeBzUbUVLsqKdccaa/BXF1uPTw3GrvQTBgrQrtObr2mUrE38vzYd8cEv+m/JBfDLioYcfXoaw==
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"