TypeError: this.subClient.psubscribe is not a function

pubClient.duplicate() return object with a property function named pSubscribe (S is uppercase). and at /node_modules/@socket.io/redis-adapter/dist/index.js the property is named psubscribe (S is lowercase).

For now, The issue is fixed by adding property psubscribe (S is lowercase):

const { Server } = require("socket.io");
const { createAdapter } = require("@socket.io/redis-adapter");
const { createClient } = require("redis");

const io = new Server();

const pubClient = createClient({ host: "localhost", port: 6379 });

const subClient = pubClient.duplicate();
subClient.psubscribe = subClient.pSubscribe

Versions:

"redis": "^4.0.0-rc.1",
"@socket.io/redis-adapter": "^7.0.0",

The error was:

error: TypeError: this.subClient.psubscribe is not a function
          at new RedisAdapter (/node_modules/@socket.io/redis-adapter/dist/index.js:64:24)
          at new OurOwnRedisAdapter (/lib/websocket-adapter.js:39:5)
          at Namespace._initAdapter (/node_modules/socket.io/dist/namespace.js:40:24)
          at Server.adapter (/node_modules/socket.io/dist/index.js:133:17)
          at module.exports (/lib/websocket.js:27:6)
          at Server.<anonymous> (/server.js:25:16)
          at Object.onceWrapper (events.js:421:28)
          at Server.emit (events.js:315:20)
          at emitListeningNT (net.js:1352:10)
          at processTicksAndRejections (internal/process/task_queues.js:79:21)

[darrachequesne]

@djaffer done!

[yanush]

@darrachequesne I think you are right. It might be some patched code I tried to fix the node-redis v4 support. Sorry for the hassle. Thanks!