Module: utils/redisClient

Shared Redis client for rate limiting, token revocation, and SSE pub/sub.

When REDIS_URL is set, creates an ioredis client and a separate subscriber client (Redis requires dedicated connections for pub/sub). When REDIS_URL is not set, all exports are no-ops / in-memory fallbacks so the application works identically in single-instance mode without Redis.

Exports

  • redis — Primary client for GET/SET/DEL commands (or null).
  • redisSub — Subscriber client for pub/sub (or null).
  • isRedisAvailable — true when a live Redis connection exists.
  • closeRedis — Gracefully disconnect both clients (shutdown hook).

Usage

import { redis, isRedisAvailable } from "../utils/redisClient.js";
if (isRedisAvailable()) {
  await redis.set("key", "value", "EX", 3600);
}
Source:

Members

(static) redis :Object|null

Primary ioredis client for commands.

Type:
  • Object | null
Source:

(static) redisSub :Object|null

Dedicated subscriber client for pub/sub.

Type:
  • Object | null
Source:

Methods

(static) closeRedis() → {Promise.<void>}

Gracefully disconnect both Redis clients. Called from the shutdown hook in index.js.

Source:
Returns:
Type
Promise.<void>

(static) isRedisAvailable() → {boolean}

Check whether a live Redis connection is available.

Source:
Returns:

true when the primary client is connected.

Type
boolean