Added getter, deleter and poster

db.js

@@ -0,0 +1,23 @@
+// db.js
+require('dotenv').config();
+const { Pool } = require('pg');
+
+// Create a connection pool
+const pool = new Pool({
+  user: process.env.DB_USER,
+  host: process.env.DB_HOST,
+  database: process.env.DB_DATABASE,
+  password: process.env.DB_PWD,
+  port: process.env.DB_PORT,
+  connectionTimeoutMillis: 5000,
+});
+
+pool.on('error', (err) => {
+  console.error('[db] pool error', {
+    message: err.message,
+    code: err.code,
+    stack: err.stack,
+  });
+});
+
+module.exports = pool;