我应该如何在Redis中存储多个会话？

Answer 1

您可以对此使用排序集

密钥:用户: :tokens

成员名为令牌，成员分数为其过期时间戳

获取具有有效时间zRangeByScore +inf 的令牌

删除所有令牌del

清理代码示例

async function getTokens(userId) {
    const lastCleanupTsKey = `user:${userId}:tokens:cleants`
    const tokenKey = `user:${userId}:tokens`

    cosnt [[lastCleanTimestamp, err1], [size, err2] = await redis.pipeline()
        .get(lastCleanupTsKey)
        .zcount(tokenKey)
        .exec()

    if (!lastCleanTimestamp) {
        await redis.set(lastCleanupTsKey, <current_timestamp>)
    }

    if (size !== null && size > CLEANUP_SIZE_THRES_HOLD) { // you can also check if lastCleanup is more than 5 minutes for example here.
        await redis.ZREMRANGEBYSCORE(tokenKey, '-inf', <current_timestamp>)
    }

    // do your logic
}