feat: add database plugin with Drizzle

Made-with: Cursor

src/plugins/database.ts

@@ -0,0 +1,32 @@
+import { FastifyInstance, FastifyPluginAsync } from 'fastify';
+import { drizzle } from 'drizzle-orm/node-postgres';
+import pg from 'pg';
+import fp from 'fastify-plugin';
+import { env } from '../config/env.js';
+
+const { Pool } = pg;
+
+declare module 'fastify' {
+  interface FastifyInstance {
+    db: ReturnType<typeof drizzle>;
+  }
+}
+
+const databasePlugin: FastifyPluginAsync = async (app: FastifyInstance) => {
+  const pool = new Pool({
+    connectionString: env.DATABASE_URL,
+    max: 10,
+    idleTimeoutMillis: 30000,
+    connectionTimeoutMillis: 5000,
+  });
+
+  const db = drizzle(pool);
+
+  app.decorate('db', db);
+
+  app.addHook('onClose', async () => {
+    await pool.end();
+  });
+};
+
+export default fp(databasePlugin, { name: 'database' });