/opt/imunify360/venv/lib/python3.11/site-packages/nats/js/__pycache__
Edit: /opt/imunify360/venv/lib/python3.11/site-packages/nats/js/__pycache__/client.cpython-311.pyc (59506B)
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returns the number of pending async publishes.
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waits for all pending async publishes to be completed.
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|_ | |_ d |_ d|_ | j || d{V }|j }|tC d |tC d | " ||||||| | d{V S )a Create consumer if needed and push-subscribe to it.
1. Check if consumer exists.
2. Creates consumer if needed.
3. Calls `subscribe_bind`.
:param subject: Subject from a stream from JetStream.
:param queue: Deliver group name from a set a of queue subscribers.
:param durable: Name of the durable consumer to which the the subscription should be bound.
:param stream: Name of the stream to which the subscription should be bound. If not set,
then the client will automatically look it up based on the subject.
:param manual_ack: Disables auto acking for async subscriptions.
:param ordered_consumer: Enable ordered consumer mode.
:param idle_heartbeat: Enable Heartbeats for a consumer to detect failures.
:param flow_control: Enable Flow Control for a consumer.
::
import asyncio
import nats
async def main():
nc = await nats.connect()
js = nc.jetstream()
await js.add_stream(name='hello', subjects=['hello'])
await js.publish('hello', b'Hello JS!')
async def cb(msg):
print('Received:', msg)
# Ephemeral Async Subscribe
await js.subscribe('hello', cb=cb)
# Durable Async Subscribe
# NOTE: Only one subscription can be bound to a durable name. It also auto acks by default.
await js.subscribe('hello', cb=cb, durable='foo')
# Durable Sync Subscribe
# NOTE: Sync subscribers do not auto ack.
await js.subscribe('hello', durable='bar')
# Queue Async Subscribe
# NOTE: Here 'workers' becomes deliver_group, durable name and queue name.
await js.subscribe('hello', 'workers', cb=cb)
if __name__ == '__main__':
asyncio.run(main())
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1. Find stream name by subject if `stream` is not passed.
2. Create consumer with the given `config` if not created.
3. Call `pull_subscribe_bind`.
::
import asyncio
import nats
async def main():
nc = await nats.connect()
js = nc.jetstream()
await js.add_stream(name='mystream', subjects=['foo'])
await js.publish('foo', b'Hello World!')
sub = await js.pull_subscribe('foo', stream='mystream')
msgs = await sub.fetch()
msg = msgs[0]
await msg.ack()
await nc.close()
if __name__ == '__main__':
asyncio.run(main())
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pull_subscribe returns a `PullSubscription` that can be delivered messages
from a JetStream pull based consumer by calling `sub.fetch`.
::
import asyncio
import nats
async def main():
nc = await nats.connect()
js = nc.jetstream()
await js.add_stream(name='mystream', subjects=['foo'])
await js.publish('foo', b'Hello World!')
msgs = await sub.fetch()
msg = msgs[0]
await msg.ack()
await nc.close()
if __name__ == '__main__':
asyncio.run(main())
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PushSubscription is a subscription that is delivered messages.
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consumer_info gets the current info of the consumer from this subscription.
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Number of delivered messages to this subscription so far.
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:params timeout: Time in seconds to wait for next message before timing out.
:raises nats.errors.TimeoutError:
next_msg can be used to retrieve the next message from a stream of messages using
await syntax, this only works when not passing a callback on `subscribe`::
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Unsubscribes from a subscription, canceling any heartbeat and flow control tasks,
and optionally limits the number of messages to process before unsubscribing.
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y !=>>>)'')) ) ) ) ) ) ) ) ) )r= r] c j K | j j | j | j d{V }|S r_ r` ra s r; r z/JetStreamContext.PullSubscription.consumer_info s< 44T\4>RRRRRRRRDKr= r r! Nbatchr' rq heartbeat List[Msg]c H K | j t d |dk rt d ||dk rt d |rt |dz dz
nd}|dk r | ||| d{V }|gS | |||| d{V }|S ) a
fetch makes a request to JetStream to be delivered a set of messages.
:param batch: Number of messages to fetch from server.
:param timeout: Max duration of the fetch request before it expires.
:param heartbeat: Idle Heartbeat interval in seconds for the fetch request.
::
import asyncio
import nats
async def main():
nc = await nats.connect()
js = nc.jetstream()
await js.add_stream(name='mystream', subjects=['foo'])
await js.publish('foo', b'Hello World!')
msgs = await sub.fetch(5)
for msg in msgs:
await msg.ack()
await nc.close()
if __name__ == '__main__':
asyncio.run(main())
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create_key_value takes an api.KeyValueConfig and creates a KV in JetStream.
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delete_key_value deletes a JetStream KeyValue store by destroying
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create_object_store takes an api.ObjectStoreConfig and creates a OBJ in JetStream.
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delete_object_store will delete the underlying stream for the named object.
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