85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
from bot.config import REDIS_URL
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import redis.asyncio as aredis
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import logging
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# Create a logger instance
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logger = logging.getLogger("state.redis")
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class RedisService:
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def __init__(self, uri=REDIS_URL):
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self._uri: str = uri
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self.pubsub_channels = []
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self._client = None
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async def connect(self):
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self._client = aredis.Redis.from_url(self._uri, decode_responses=True)
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async def disconnect(self):
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if self._client:
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await self._client.close()
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async def execute(self, command, *args, **kwargs):
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if self._client:
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try:
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logger.debug(f"{command}") # {args[0]}") # {args} {kwargs}")
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for arg in args:
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if isinstance(arg, dict):
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if arg.get("_sa_instance_state"):
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del arg["_sa_instance_state"]
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r = await self._client.execute_command(command, *args, **kwargs)
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# logger.debug(type(r))
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# logger.debug(r)
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return r
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except Exception as e:
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logger.error(e)
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async def subscribe(self, *channels):
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if self._client:
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async with self._client.pubsub() as pubsub:
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for channel in channels:
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await pubsub.subscribe(channel)
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self.pubsub_channels.append(channel)
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async def unsubscribe(self, *channels):
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if not self._client:
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return
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async with self._client.pubsub() as pubsub:
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for channel in channels:
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await pubsub.unsubscribe(channel)
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self.pubsub_channels.remove(channel)
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async def publish(self, channel, data):
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if not self._client:
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return
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await self._client.publish(channel, data)
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async def set(self, key, data, ex=None):
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# Prepare the command arguments
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args = [key, data]
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# If an expiration time is provided, add it to the arguments
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if ex is not None:
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args.append("EX")
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args.append(ex)
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# Execute the command with the provided arguments
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await self.execute("set", *args)
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async def scan_iter(self, pattern="*"):
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"""Asynchronously iterate over keys matching the given pattern."""
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if self._client:
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cursor = "0"
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while cursor != 0:
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cursor, keys = await self._client.scan(cursor=cursor, match=pattern)
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for key in keys:
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yield key
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async def get(self, key):
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return await self.execute("get", key)
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redis = RedisService()
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__all__ = ["redis"]
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