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redis update

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Untone 2023-10-13 13:13:45 +03:00
parent 82618bf7f3
commit bbd8f61408
2 changed files with 25 additions and 27 deletions
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2
requirements.txt
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@ -3,7 +3,7 @@ git+https://github.com/encode/starlette.git#master
git+https://github.com/graphql-python/gql.git#master git+https://github.com/graphql-python/gql.git#master
SQLAlchemy SQLAlchemy
uvicorn uvicorn
aredis redis[hiredis]
itsdangerous itsdangerous
Authlib Authlib
PyJWT PyJWT

42
services/redis.py
View File

@ -1,58 +1,56 @@
import asyncio import redis.asyncio as redis
import aredis
from settings import REDIS_URL from settings import REDIS_URL
class RedisCache: class RedisCache:
def __init__(self, uri=REDIS_URL): def __init__(self, uri=REDIS_URL):
self._uri: str = uri self._uri: str = uri
self.pubsub_channels = [] self.pubsub_channels = []
self._instance = None self._redis = None
async def connect(self): async def connect(self):
self._instance = aredis.StrictRedis.from_url(self._uri, decode_responses=True) self._redis = redis.Redis.from_url(self._uri, decode_responses=True)
async def disconnect(self): async def disconnect(self):
if self._instance: await self._redis.aclose()
self._instance.connection_pool.disconnect()
self._instance = None
async def execute(self, command, *args, **kwargs): async def execute(self, command, *args, **kwargs):
while not self._instance: if not self._redis:
await asyncio.sleep(1) await self.connect()
try: try:
print("[redis] " + command + " " + " ".join(args)) print("[redis] " + command + " " + " ".join(args))
return await self._instance.execute_command(command, *args, **kwargs) return await self._redis.execute_command(command, *args, **kwargs)
except Exception: except Exception as e:
pass print(f"[redis] error: {e}")
return None
async def subscribe(self, *channels): async def subscribe(self, *channels):
if not self._instance: if not self._redis:
await self.connect() await self.connect()
async with self._redis.pubsub() as pubsub:
for channel in channels: for channel in channels:
await self._instance.subscribe(channel) await pubsub.subscribe(channel)
self.pubsub_channels.append(channel) self.pubsub_channels.append(channel)
async def unsubscribe(self, *channels): async def unsubscribe(self, *channels):
if not self._instance: if not self._redis:
return return
async with self._redis.pubsub() as pubsub:
for channel in channels: for channel in channels:
await self._instance.unsubscribe(channel) await pubsub.unsubscribe(channel)
self.pubsub_channels.remove(channel) self.pubsub_channels.remove(channel)
async def publish(self, channel, data): async def publish(self, channel, data):
if not self._instance: if not self._redis:
return return
await self._instance.publish(channel, data) await self._redis.publish(channel, data)
async def lrange(self, key, start, stop): async def lrange(self, key, start, stop):
print(f"[redis] LRANGE {key} {start} {stop}") print(f"[redis] LRANGE {key} {start} {stop}")
return await self._instance.lrange(key, start, stop) return await self._redis.lrange(key, start, stop)
async def mget(self, key, *keys): async def mget(self, key, *keys):
print(f"[redis] MGET {key} {keys}") print(f"[redis] MGET {key} {keys}")
return await self._instance.mget(key, *keys) return await self._redis.mget(key, *keys)
redis = RedisCache() redis = RedisCache()