fix for hardcoded defaults #3

Author: pankajpatel

.env.example

@@ -1,4 +1,4 @@
 DB_HOST=localhost
-DB_USER=root
+DB_USER=
 DB_PASS=
 DB_DATABASE=twitter_clone

dbConfig.js

@@ -3,15 +3,20 @@ const dotenv = require("dotenv")
 dotenv.config();
 
 // Get the Host from Environment or use default
-const host = process.env.DB_HOST || 'localhost';
+const host = process.env.DB_HOST;
 
 // Get the User for DB from Environment or use default
-const user = process.env.DB_USER || 'root';
+const user = process.env.DB_USER;
 
 // Get the Password for DB from Environment or use default
-const password = process.env.DB_PASS || '';
+const password = process.env.DB_PASS;
 
 // Get the Database from Environment or use default
-const database = process.env.DB_DATABASE || 'twitter_clone';
+const database = process.env.DB_DATABASE;
+
+if(!host || !user || !password || !database) {
+  console.error('Needed credentials not found! Please create .env file from .env.example and fill the values');
+  process.exit(1);
+}
 
 module.exports = { host, user, password, database };