UPD: added datetime to json encoder

middleware/net_suite/__init__.py

@@ -13,6 +13,7 @@ import kitnet.lib.netdd
 import kitnet.lib.host_oper_mode_data
 import ipaddress
 import postgresql.types
+import datetime
 
 DIRTY = True
 
@@ -45,6 +46,8 @@ class CustomJSONEncoder(JSONEncoder):
             return {'address': str(obj), 'netmask': obj.netmask, 'broadcast_address': obj.broadcast_address}
         elif isinstance(obj, ipaddress.IPv4Address) or isinstance(obj, ipaddress.IPv6Address):
             return str(obj)
+        elif isinstance(obj, datetime.datetime):
+            return obj.isoformat()
         elif isinstance(obj, ModMetaData):
             return {k: v for (k, v) in obj.__dict__.items() if 'func' not in k}
         elif isinstance(obj, kitnet.lib.host_oper_mode_data.Loader):