"redis.scan is not a function" in cluster mode

[tiye]

Description

I was using SCAN since KEYS is not allowed in production mode. However as I move to cluster mode, running the same code base, I was told:

It looks like the code does not expose SCAN on purpose...

node-redis/packages/client/lib/cluster/commands.ts

Line 343 in 294cbf8

HSCAN,

In my case I want to scan a list of keys I want to delete, what's the suggested way to do this in cluster mode with node-redis?

[sonht1109]

Still no solutions for this?

[leibale]

@tiye @sonht1109 you can loop over cluster.masters and use scan/scanIterator on each client:

const results = await Promise.all(
    cluster.masters.map(async master => {
        const client = await cluster.nodeClient(master);
        // you can use client.scan or client.scanIterator here
    })
);

this should be added to the docs...

[leibale]

Duplicate of #2446