[feat] switched from mysql to postgresql

src/db/index.ts

@@ -1,11 +1,23 @@
 // src/db/index.ts
 import 'dotenv/config';
 import { relations } from './relations.ts';
-import { drizzle } from 'drizzle-orm/mysql2';
-import mysql from 'mysql2/promise';
+import { drizzle } from "drizzle-orm/node-postgres";
+import { Pool } from "pg";
 
-//export const poolConnection = mysql.createPool({ uri: process.env.DATABASE_URL, client_found_rows: false });
-export const poolConnection = mysql.createPool({ uri: process.env.DATABASE_URL, flags: ["-FOUND_ROWS"] });
+const pool = new Pool({
+  connectionString: process.env.DATABASE_URL,
+  max: 10,
+  idleTimeoutMillis: 30000,
+  connectionTimeoutMillis: 2000,
+});
 
-export const db = drizzle({ client: poolConnection, relations: relations});
+// Handle pool errors to prevent connection corruption
+pool.on('error', (err) => {
+  console.error('Unexpected error on idle client', err);
+});
 
+export const db = drizzle({ client: pool, relations: relations, casing: 'snake_case' });
+
+export const ClosePool = () => {
+    pool.end();
+}