Fix datetime

gateway/app/core/service_discovery.py

@@ -96,7 +96,7 @@ class ServiceDiscovery:
             key = f"service_health:{service_name}"
             value = {
                 "healthy": is_healthy,
-                "last_check": datetime.utcnow().isoformat(),
+                "last_check":  datetime.now(datetime.timezone.utc).isoformat(),
                 "url": self.services[service_name]
             }
             

gateway/shared/auth/jwt_handler.py

@@ -22,9 +22,9 @@ class JWTHandler:
         to_encode = data.copy()
         
         if expires_delta:
-            expire = datetime.utcnow() + expires_delta
+            expire =  datetime.now(datetime.timezone.utc) + expires_delta
         else:
-            expire = datetime.utcnow() + timedelta(minutes=30)
+            expire =  datetime.now(datetime.timezone.utc) + timedelta(minutes=30)
         
         to_encode.update({"exp": expire, "type": "access"})
         
@@ -36,9 +36,9 @@ class JWTHandler:
         to_encode = data.copy()
         
         if expires_delta:
-            expire = datetime.utcnow() + expires_delta
+            expire =  datetime.now(datetime.timezone.utc) + expires_delta
         else:
-            expire = datetime.utcnow() + timedelta(days=7)
+            expire =  datetime.now(datetime.timezone.utc) + timedelta(days=7)
         
         to_encode.update({"exp": expire, "type": "refresh"})
         

gateway/shared/messaging/events.py

@@ -21,7 +21,7 @@ class BaseEvent:
         if not self.event_id:
             self.event_id = str(uuid.uuid4())
         if not self.timestamp:
-            self.timestamp = datetime.utcnow()
+            self.timestamp =  datetime.now(datetime.timezone.utc)
 
 # Training Events
 @dataclass