Is it possible on Nodejs to organize kind of proxy for a Redis connection which would simply rewrite incoming request keys.

The basic idea is to separate/isolate a Data Space for a set of clients on a single Redis instance with kind of perfixing their keys (16 instances is not a solution here)

At the very high level it seems to be as simple as

const shardPrefix = 'some-prefix/'

const server = net.createServer((client) => {
  const redisClient = redis.createClient({...})

  clientSocket.on('data', (data) => {
    const [command, key, ...args] = data.toString().split(' ')

    const rewrittenKey = shardPrefix + key

    // Forward command and rewritten key to Redis server
    redisClient
       .sendCommand(command, [rewrittenKey, ...args])
       .then((reply) => {
            clientSocket.write(reply.toString())
       });
  });

  clientSocket.on('end', () => {
    redisClient.quit()
  })
})

server.listen(proxyPort)

Still to be sure this have any chance to work

• Is it correct to expect that all Redis commands have the same format as command key ...rest

• would it really work on a such a simple socket streaming or does Redis have any proper protocol for this?

• On a second thought it seems that even some responses must be patched as well (e.g. KEYS *. Are there any more)

• Is there maybe a ready solution for this

• Or maybe this is achievable simply on a native Redis implementation level it self or its nodejs client

Thanks