mirror of
https://git.selfprivacy.org/SelfPrivacy/selfprivacy-rest-api.git
synced 2024-11-25 21:41:27 +00:00
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
"""
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Redis pool module for selfprivacy_api
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"""
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import redis
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import redis.asyncio as redis_async
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from selfprivacy_api.utils.singleton_metaclass import SingletonMetaclass
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REDIS_SOCKET = "/run/redis-sp-api/redis.sock"
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# class RedisPool(metaclass=SingletonMetaclass):
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class RedisPool:
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"""
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Redis connection pool singleton.
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"""
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def __init__(self):
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self._dbnumber = 0
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url = RedisPool.connection_url(dbnumber=self._dbnumber)
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# We need a normal sync pool because otherwise
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# our whole API will need to be async
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self._pool = redis.ConnectionPool.from_url(
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url,
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decode_responses=True,
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)
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# We need an async pool for pubsub
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self._async_pool = redis_async.ConnectionPool.from_url(
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url,
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decode_responses=True,
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)
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@staticmethod
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def connection_url(dbnumber: int) -> str:
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"""
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redis://[[username]:[password]]@localhost:6379/0
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unix://[username@]/path/to/socket.sock?db=0[&password=password]
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"""
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return f"unix://{REDIS_SOCKET}?db={dbnumber}"
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def get_connection(self):
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"""
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Get a connection from the pool.
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"""
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return redis.Redis(connection_pool=self._pool)
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def get_connection_async(self) -> redis_async.Redis:
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"""
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Get an async connection from the pool.
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Async connections allow pubsub.
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"""
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return redis_async.Redis(connection_pool=self._async_pool)
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async def subscribe_to_keys(self, pattern: str) -> redis_async.client.PubSub:
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async_redis = self.get_connection_async()
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pubsub = async_redis.pubsub()
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await pubsub.psubscribe(f"__keyspace@{self._dbnumber}__:" + pattern)
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return pubsub
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