RedisPersistence not using provided configuration

[tyler-mccarthy]

I am trying to use the RedisPersistence class from the y-redis library to connect to a Redis server with custom host, port, and password. Despite providing the correct configuration, the connection defaults to localhost:6379.

Issue - passing variables directly to RedisPersistence:

require('dotenv').config();
const http = require('http');
const WebSocket = require('ws');
const setupWSConnection = require('y-websocket/bin/utils').setupWSConnection;
const RedisPersistence = require('y-redis').RedisPersistence;

// Redis Configuration without TLS
const redisConfig = {
  host: REDIS_HOST,
  port: REDIS_PORT,
  password: REDIS_PASSWORD,
};

console.log('Redis Config:', redisConfig);

const redisPersistence = new RedisPersistence(redisConfig);

// Debug: Verify the RedisPersistence configuration
console.log('Redis Persistence:', redisPersistence);

// WebSocket Server Configuration
const port = 1234;
const server = http.createServer();
const wss = new WebSocket.Server({ server });

wss.on('connection', (ws, request) => {
  const roomName = request.url.slice(1); // Remove leading "/"

  setupWSConnection(ws, request, {
    docName: roomName,
    gc: false, // Disable garbage collection for persistence
    persistence: redisPersistence, // Use Redis persistence
  });
});

server.listen(port, () => {
  console.log(`✅ y-websocket server running on http://localhost:${port} with Redis persistence enabled`);
});

Output of redis persistence showing config despite passing unique values to host, port and password it defaults to localhost:6379:

Redis Persistence:  RedisPersistence {
  _observers: Map(0) {},
  redis: Redis {
    options: {
      port: 6379,
      host: 'localhost',
      ...
    }
  }
}

Node.js version: Node.js v22.11.0
y-redis version: "^1.0.3"
Operating System: MacOS (Local Dev)