Can i use the same redis instance for the adapter to store data?

[branlok]

Was wondering if its okay to use the same Redis instance for some state persistence. Would there be any conflict ?

//redis setup
const redisAdapter = require("@socket.io/redis-adapter");
const Redis = require("ioredis");

const pubClient = new Redis();
const subClient = pubClient.duplicate();

pubClient.set("foo", "bar"); 

pubClient.get("foo", function (err, result) {
    if (err) {
      console.error(err);
    } else {
      console.log(result); // Promise resolves to "bar"
    }
  });


const io = new Server(server, {
  cors: {
    origin: "http://localhost:3000",
    methods: ["GET", "POST"],
  },
});


io.adapter(redisAdapter(pubClient, subClient));

[darrachequesne]

Yes, you can totally reuse the pubClient.

The subClient cannot be used though, as it is put in subscribed state.

Reference: https://redis.io/commands/subscribe