selfprivacy-rest-api/selfprivacy_api/utils/redis_pool.py

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"""
Redis pool module for selfprivacy_api
"""
import redis
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from selfprivacy_api.utils.singleton_metaclass import SingletonMetaclass
REDIS_SOCKET = "/run/redis-sp-api/redis.sock"
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class RedisPool(metaclass=SingletonMetaclass):
"""
Redis connection pool singleton.
"""
def __init__(self):
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self._pool = redis.ConnectionPool.from_url(
RedisPool.connection_url(dbnumber=0),
decode_responses=True,
)
self._pubsub_connection = self.get_connection()
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@staticmethod
def connection_url(dbnumber: int) -> str:
"""
redis://[[username]:[password]]@localhost:6379/0
unix://[username@]/path/to/socket.sock?db=0[&password=password]
"""
return f"unix://{REDIS_SOCKET}?db={dbnumber}"
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def get_connection(self):
"""
Get a connection from the pool.
"""
return redis.Redis(connection_pool=self._pool)
def get_pubsub(self):
"""
Get a pubsub connection from the pool.
"""
return self._pubsub_connection.pubsub()