No need to use separate constants

Author: Cyclonecode

scripts/db.js

@@ -4,18 +4,12 @@ const logger = require('./logger');
 // parse any arguments
 const argv = require('minimist')(process.argv.slice(2));
 
-const MYSQL_USERNAME = process.env.MYSQL_USERNAME || 'root';
-const MYSQL_PASSWORD = process.env.MYSQL_PASSWORD || '';
-const MYSQL_DATABASE = process.env.MYSQL_DATABASE || 'mysql_note';
-const MYSQL_HOSTNAME = process.env.MYSQL_HOSTNAME || 'localhost';
-const MYSQL_PORT = process.env.MYSQL_PORT || 3306;
-
 const connection = mysql.createConnection({
-  host: MYSQL_HOSTNAME,
-  user: MYSQL_USERNAME,
-  password: MYSQL_PASSWORD,
-  database: MYSQL_DATABASE,
-  port: MYSQL_PORT,
+  host: process.env.MYSQL_HOSTNAME || 'localhost',
+  user: process.env.MYSQL_USERNAME || 'root',
+  password: process.env.MYSQL_PASSWORD || '',
+  database: process.env.MYSQL_DATABASE || 'mysql_note',
+  port: process.env.MYSQL_PORT || 3306,
 });
 
 connection.connect((err) => {