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ViewDescription default Timestamp value should be OPC UA TimeBase #1779

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ViewDescription default Timestamp value should be OPC UA TimeBase #1779

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8 changes: 6 additions & 2 deletions asyncua/ua/uaprotocol_auto.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
from typing import List, Optional, Type
from dataclasses import dataclass, field

from asyncua.ua.uatypes import FROZEN
from asyncua.ua.uatypes import FROZEN, FILETIME_EPOCH_AS_UTC_DATETIME
from asyncua.ua.uatypes import SByte, Byte, Bytes, ByteString, Int16, Int32, Int64, UInt16, UInt32
from asyncua.ua.uatypes import UInt64, Boolean, Float, Double, Null, String, CharArray, DateTime, Guid
from asyncua.ua.uatypes import AccessLevel, EventNotifier
Expand Down Expand Up @@ -5820,7 +5820,11 @@ class ViewDescription:
data_type = NodeId(ObjectIds.ViewDescription)

ViewId: NodeId = field(default_factory=NodeId)
Timestamp: UtcTime = field(default_factory=lambda: datetime.now(timezone.utc))
# Set the default timestamp to 1601-01-01, which is the OPC UA TimeBase.
# This prevents the "BadViewTimestampInvalid" error in Browse Request Service results,
# indicating that the view timestamp is either unavailable or unsupported.
# https://github.com/FreeOpcUa/opcua-asyncio/issues/654
Timestamp: UtcTime = field(default_factory=lambda: FILETIME_EPOCH_AS_UTC_DATETIME)
ViewVersion: UInt32 = 0


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