coredis is an async redis client with support for redis server, cluster & sentinel.
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The client API uses the specifications in the Redis command documentation to define the API by using the following conventions:
- Arguments retain naming from redis as much as possible
- Only optional variadic arguments are mapped to variadic positional or keyword arguments.
When the variable length arguments are not optional (which is almost always the case) the expected argument
is an iterable of type Parameters or
Mapping. - Pure tokens used as flags are mapped to boolean arguments
One ofarguments accepting pure tokens are collapsed and accept a PureToken
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Responses are mapped between RESP and python types as closely as possible.
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For higher level concepts such as Pipelines, LUA Scripts, PubSub & Streams abstractions are provided to encapsulate recommended patterns. See the Handbook and the API Documentation for more details.
Warning The command API does NOT mirror the official python redis client. For details about the high level differences refer to Divergence from aredis & redis-py
To install coredis:
$ pip install coredis- Connection Pooling
- PubSub
- Sharded PubSub [
>= Redis 7.0] - Stream Consumers
- Pipelining
- Client side caching
- LUA Scripting
- Redis Libraries and functions [
>= Redis 7.0]
- Public API annotated with type annotations
- Optional Runtime Type Validation (via beartype)
import asyncio
from coredis import Redis, RedisCluster
async def example():
client = Redis(host='127.0.0.1', port=6379, db=0)
# or with redis cluster
# client = RedisCluster(startup_nodes=[{"host": "127.0.01", "port": 7001}])
await client.flushdb()
await client.set('foo', 1)
assert await client.exists(['foo']) == 1
assert await client.incr('foo') == 2
assert await client.incrby('foo', increment=100) == 102
assert int(await client.get('foo')) == 102
assert await client.expire('foo', 1)
await asyncio.sleep(0.1)
assert await client.ttl('foo') == 1
assert await client.pttl('foo') < 1000
await asyncio.sleep(1)
assert not await client.exists(['foo'])
asyncio.run(example())import asyncio
from coredis.sentinel import Sentinel
async def example():
sentinel = Sentinel(sentinels=[("localhost", 26379)])
primary = sentinel.primary_for("myservice")
replica = sentinel.replica_for("myservice")
assert await primary.set("fubar", 1)
assert int(await replica.get("fubar")) == 1
asyncio.run(example())To see a full list of supported redis commands refer to the Command compatibility documentation
Details about supported Redis modules and their commands can be found here
coredis is tested against redis versions 6.2.x, 7.0.x & 7.2.x.
The test matrix status can be reviewed
here
coredis is additionally tested against:
uvloop >= 0.15.0
- 3.8
- 3.9
- 3.10
- 3.11
- 3.12
- PyPy 3.8
- PyPy 3.9
coredis is known to work with the following databases that have redis protocol compatibility: