db conection fixed

backend/main.py

@@ -18,9 +18,16 @@ from sqlalchemy.orm import sessionmaker, declarative_base, relationship, Session
 # ==========================================
 # Database Configuration
 # ==========================================
-SQLALCHEMY_DATABASE_URL = os.getenv("DATABASE_URL", "postgresql://postgres:gVgyOv6DL9vkzGmh@db.nujbaaxesubgawnazmza.supabase.co:5432/postgres")
-
-engine = create_engine(SQLALCHEMY_DATABASE_URL)
+SQLALCHEMY_DATABASE_URL = os.getenv("DATABASE_URL", "postgresql://postgres.nujbaaxesubgawnazmza:gVgyOv6DL9vkzGmh@aws-1-ap-south-1.pooler.supabase.com:6543/postgres")
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL,
+    pool_pre_ping=True,
+    pool_size=5,
+    max_overflow=10,
+    pool_recycle=300,
+    connect_args={"connect_timeout": 10},
+)
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
 
 Base = declarative_base()
@@ -93,11 +100,19 @@ class TokenData(BaseModel):
 # ==========================================
 # FastAPI App setup
 # ==========================================
-# Create DB tables
-Base.metadata.create_all(bind=engine)
 
 app = FastAPI(title="Task 1 API")
 
+@app.on_event("startup")
+def on_startup():
+    """Create DB tables on startup — retry-safe."""
+    try:
+        Base.metadata.create_all(bind=engine)
+        print("✅ Database tables created / verified.")
+    except Exception as e:
+        print(f"⚠️  Could not connect to database on startup: {e}")
+        print("   The app will start anyway; DB operations will fail until the DB is reachable.")
+
 # --- Static files & Templates ---
 BASE_DIR = Path(__file__).resolve().parent
 app.mount("/static", StaticFiles(directory=str(BASE_DIR / "static")), name="static")