Switched mysql from connection to pool, Replaced connect-flash with build-in code

database.js.examle

@@ -1,21 +1,13 @@
-const mysql = require('mysql2');
+var mysql = require('mysql2/promise');
 
-var connection = mysql.createConnection({
+const DBPool = mysql.createPool({
 	host : 'localhost',
 	database : 'testing',
 	user : 'root',
 	password : ''
+	waitForConnections: true,
+	connectionLimit: 10,
+	queueLimit: 0
 });
 
-connection.connect(function(error){
-	if(error)
-	{
-		throw error;
-	}
-	else
-	{
-		console.log('MySQL Database is connected Successfully');
-	}
-});
-
-module.exports = connection;
+module.exports = DBPool;