python使用异步redis--aioredis

Posted 2023-02-18 帝壹

安装

最简单的安装方式：

pip install aioredis

需要先安装的依赖：

1. Python 3.3 and asyncio 或 Python 3.4+
2. hiredis

例子

simple low-level interface:

import asyncio
import aioredis

loop = asyncio.get_event_loop()

async def go():
    conn = await aioredis.create_connection(
        ('localhost', 6379), loop=loop)
    await conn.execute('set', 'my-key', 'value')
    val = await conn.execute('get', 'my-key')
    print(val)
    conn.close()
    await conn.wait_closed()
loop.run_until_complete(go())
# will print 'value'

simple high-level interface:

import asyncio
import aioredis

loop = asyncio.get_event_loop()

async def go():
    redis = await aioredis.create_redis(
        ('localhost', 6379), loop=loop)
    await redis.set('my-key', 'value')
    val = await redis.get('my-key')
    print(val)
    redis.close()
    await redis.wait_closed()
loop.run_until_complete(go())
# will print 'value'

Connections pool:

import asyncio
import aioredis

loop = asyncio.get_event_loop()

async def go():
    pool = await aioredis.create_pool(
        ('localhost', 6379),
        minsize=5, maxsize=10,
        loop=loop)
    with await pool as redis:    # high-level redis API instance
        await redis.set('my-key', 'value')
        print(await redis.get('my-key'))
    # graceful shutdown
    pool.close()
    await pool.wait_closed()

loop.run_until_complete(go())