Skip to content

Fixed check streams after restart. Stream will not try to create new … #21

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
Ruslan-Droid wants to merge 2 commits into
base: master
Choose a base branch
from
Open

Fixed check streams after restart. Stream will not try to create new … #21

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
656fde5
Fixed check streams after restart. Stream will not try to create new …
Ruslan-Droid Nov 16, 2025
3d54388
Removed extra spaces from the code
Ruslan-Droid Nov 17, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
28 changes: 21 additions & 7 deletions taskiq_nats/broker.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,16 +7,15 @@
from nats.errors import TimeoutError as NatsTimeoutError
from nats.js import JetStreamContext
from nats.js.api import ConsumerConfig, StreamConfig
from nats.js.errors import NotFoundError
from taskiq import AckableMessage, AsyncBroker, AsyncResultBackend, BrokerMessage

_T = typing.TypeVar("_T") # (Too short)


JetStreamConsumerType = typing.TypeVar(
"JetStreamConsumerType",
)


logger = getLogger("taskiq_nats")


Expand Down Expand Up @@ -138,6 +137,23 @@ def __init__(

self.consumer: JetStreamConsumerType

async def _ensure_stream_exists(self) -> None:
"""Ensure stream exists, create if it doesn't."""
if self.stream_config.name is None:
self.stream_config.name = self.stream_name
if not self.stream_config.subjects:
self.stream_config.subjects = [self.subject]

try:
# Check if stream already exists
await self.js.stream_info(self.stream_config.name)
logger.debug("Stream %s already exists", self.stream_config.name)
except NotFoundError:
logger.debug("stream %s does not exist", self.stream_config.name)
# Stream doesn't exist, create it
await self.js.add_stream(config=self.stream_config)
logger.info("Created stream %s", self.stream_config.name)

async def startup(self) -> None:
"""
Startup event handler.
Expand All @@ -148,11 +164,9 @@ async def startup(self) -> None:
await super().startup()
await self.client.connect(self.servers, **self.connection_kwargs)
self.js = self.client.jetstream()
if self.stream_config.name is None:
self.stream_config.name = self.stream_name
if not self.stream_config.subjects:
self.stream_config.subjects = [self.subject]
await self.js.add_stream(config=self.stream_config)

# Ensure stream exists (won't recreate if it exists)
await self._ensure_stream_exists()
await self._startup_consumer()

async def shutdown(self) -> None:
Expand Down