first commit

Backend/db.js

@@ -0,0 +1,10 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const pool = new Pool({
+    connectionString: process.env.DATABASE_URL,
+});
+
+module.exports = {
+    query: (text, params) => pool.query(text, params),
+};