From a194d8594be85a424a42328f8b5845db294aa682 Mon Sep 17 00:00:00 2001
From: waruneeauy <warunee.auy@gmail.com>
Date: Wed, 28 Jan 2026 16:59:09 +0700
Subject: [PATCH] fix: connection pool settings

---
 src/database/data-source.ts | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/database/data-source.ts b/src/database/data-source.ts
index db5afc0d..e44252a1 100644
--- a/src/database/data-source.ts
+++ b/src/database/data-source.ts
@@ -47,8 +47,8 @@ export const AppDataSource = new DataSource({
   logging: true,
   //   timezone: "Z",
   entities:
-    process.env.NODE_ENV !== "production" 
-      ? ["src/entities/**/*.ts"] 
+    process.env.NODE_ENV !== "production"
+      ? ["src/entities/**/*.ts"]
       : ["dist/entities/**/*{.ts,.js}"],
   migrations:
     process.env.NODE_ENV !== "production"
@@ -56,6 +56,16 @@ export const AppDataSource = new DataSource({
       : ["dist/migration/**/*{.ts,.js}"],
   subscribers: [],
   logger: new MyCustomLogger(),
+  // Connection pool settings to prevent connection exhaustion
+  extra: {
+    connectionLimit: +(process.env.DB_CONNECTION_LIMIT || 50),
+    maxIdle: +(process.env.DB_MAX_IDLE || 10),
+    idleTimeout: +(process.env.DB_IDLE_TIMEOUT || 60000),
+    timezone: "+07:00", // Bangkok timezone (UTC+7)
+  },
+  // TypeORM pool settings
+  poolSize: +(process.env.DB_POOL_SIZE || 10),
+  maxQueryExecutionTime: +(process.env.DB_MAX_QUERY_TIME || 3000),
 });
 
 // export default database;