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fix: Refactor session retrieval fallback in _streaming_agent_run_with_events. #6333

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Merged
copybara-service merged 1 commit into from
Feb 13, 2026
Merged

fix: Refactor session retrieval fallback in _streaming_agent_run_with_events. #6333

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3 changes: 3 additions & 0 deletions vertexai/agent_engines/templates/adk.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1183,13 +1183,16 @@ async def streaming_agent_run_with_events(self, request_json: str):
session_service = self._tmpl_attrs.get("session_service")
artifact_service = self._tmpl_attrs.get("artifact_service")
runner = self._tmpl_attrs.get("runner")
session = None
try:
session = await session_service.get_session(
app_name=app.name if app else self._tmpl_attrs.get("app_name"),
user_id=request.user_id,
session_id=request.session_id,
)
except ClientError:
pass
if not session:
# Fall back to create session if the session is not found.
# Specifying session_id on creation is not supported,
# so session id will be regenerated.
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5 changes: 5 additions & 0 deletions vertexai/preview/reasoning_engines/templates/adk.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1017,14 +1017,19 @@ async def _invoke_agent_async():
session_service = self._tmpl_attrs.get("session_service")
artifact_service = self._tmpl_attrs.get("artifact_service")
runner = self._tmpl_attrs.get("runner")
session = None
try:
session = await session_service.get_session(
app_name=self._tmpl_attrs.get("app_name"),
user_id=request.user_id,
session_id=request.session_id,
)
except ClientError:
pass
if not session:
# Fall back to create session if the session is not found.
# Specifying session_id on creation is not supported,
# so session id will be regenerated.
session = await self._init_session(
session_service=session_service,
artifact_service=artifact_service,
Expand Down
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