@keyv/redis
Redis storage adapter for Keyv
Redis storage adapter for Keyv.
TTL functionality is handled directly by Redis so no timestamps are stored and expired keys are cleaned up internally.
Install
npm install --save keyv @keyv/redis
Usage
import Keyv from 'keyv';
import KeyvRedis from '@keyv/redis';
const keyv = new Keyv(new KeyvRedis('redis://user:pass@localhost:6379'));
keyv.on('error', handleConnectionError);
Any valid Redis
options will be passed directly through.
e.g:
const keyv = new Keyv(new KeyvRedis('redis://user:pass@localhost:6379', { disable_resubscribing: true }));
Or you can manually create a storage adapter instance and pass it to Keyv:
import Keyv from 'keyv';
import KeyvRedis from '@keyv/redis';
const keyvRedis = new KeyvRedis('redis://user:pass@localhost:6379');
const keyv = new Keyv({ store: keyvRedis });
Or reuse a previous Redis instance:
import Keyv from 'keyv';
import Redis from 'ioredis';
import KeyvRedis from '@keyv/redis';
const redis = new Redis('redis://user:pass@localhost:6379');
const keyvRedis = new KeyvRedis(redis);
const keyv = new Keyv({ store: keyvRedis });
Or reuse a previous Redis cluster:
import Keyv from 'keyv';
import Redis from 'ioredis';
import KeyvRedis from '@keyv/redis';
const redis = new Redis.Cluster('redis://user:pass@localhost:6379');
const keyvRedis = new KeyvRedis(redis);
const keyv = new Keyv({ store: keyvRedis });
Options
useRedisSets
The useRedisSets
option lets you decide whether to use Redis sets for key management. By default, this option is set to true
.
When useRedisSets
is enabled (true
):
- A namespace for the Redis sets is created, and all created keys are added to this. This allows for group management of keys.
- When a key is deleted, it's removed not only from the main storage but also from the Redis set.
- When clearing all keys (using the
clear
function), all keys in the Redis set are looked up for deletion. The set itself is also deleted.
Note: In high-performance scenarios, enabling useRedisSets
might lead to memory leaks. If you're running a high-performance application or service, it is recommended to set useRedisSets
to false
.
If you decide to set useRedisSets
as false
, keys will be handled individually and Redis sets won't be utilized.
However, please note that setting useRedisSets
to false
could lead to performance issues in production when using the clear
function, as it will need to iterate over all keys to delete them.
Example
Here's how you can use the useRedisSets
option:
import Keyv from 'keyv';
const keyv = new Keyv(new KeyvRedis('redis://user:pass@localhost:6379', { useRedisSets: false }));