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Description:

asyncpglisten 0.0.6

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())

v0.0.6 (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