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asyncpglisten 0.0.7
asyncpg-listen
This library simplifies usage of listen/notify with asyncpg:
Handles loss of a connection
Simplifies notifications processing from multiple channels
Setups a timeout for receiving a notification
Allows to receive all notifications/only last notification depending on ListenPolicy.
import asyncio
import asyncpg
import asyncpg_listen
async def handle_notifications(notification: asyncpg_listen.NotificationOrTimeout) -> None:
print(f"{notification} has been received")
async def main():
listener = asyncpg_listen.NotificationListener(asyncpg_listen.connect_func(user="postgres"))
listener_task = asyncio.create_task(
listener.run(
{"simple": handle_notifications},
policy=asyncpg_listen.ListenPolicy.LAST,
notification_timeout=5
)
)
await asyncio.sleep(1)
connection = await asyncpg.connect(user="postgres")
try:
for i in range(42):
await connection.execute(f"NOTIFY simple, '{i}'")
finally:
await connection.close()
await asyncio.sleep(1)
listener_task.cancel()
asyncio.run(main())
v0.0.7 (2024-09-07)
Support python 3.12 and end support of 3.8
End support of python 3.9 and 3.10
Eagerly start notification processing with Python 3.12+
Switch to asyncio.TaskGroup
v0.0.6 (2022-11-02)
Add support of python 3.11
v0.0.5 (2022-05-23)
Wait for tasks cancellation
v0.0.4 (2022-01-24)
Reset failed attempts counter on successful connection
v0.0.3 (2022-01-23)
Support python 3.8
v0.0.2 (2021-11-02)
Support async-timeout 4.0+
v0.0.1 (2021-10-27)
A first version
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
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