Receiver must be an instance of class RedisCluster

[Rimantovas]

Description

When using RedisJSON commands, getting error: "Receiver must be an instance of class RedisCluster". Simple operations like get or set work fine.

RedisJSON module is enabled on my Redis cluster. Commands work fine on Go services using go-redis.

Redis is instantied as such:

this.redisCluster = createCluster({
      rootNodes: [
        {
          url: `redis://${configService.get<string>('REDIS_HOST')}:${configService.get<string>('REDIS_PORT')}`,
        },
      ],
      defaults: {
        socket: {
          connectTimeout: 15000, // 15 seconds
          keepAlive: true, // Keep-alive every 5 seconds
          reconnectStrategy: (retries) => {
            const delay = Math.min(retries * 100, 3000); // Max 3 second delay between retries
            console.warn(
              `Redis connection retry attempt: ${retries}, retrying in ${delay}ms`,
            );
            return delay;
          },
        },
      },
    });

Node.js Version

20

Redis Server Version

7.4.2

Node Redis Version

5.0.1

Platform

Linux and macOS

Logs

TypeError: Receiver must be an instance of class RedisCluster
2025-05-20T12:26:35.981+03:00    at Object.get (/home/node/node_modules/.pnpm/@[email protected]/node_modules/@redis/client/dist/lib/cluster/index.js:29:31)

[Rimantovas]

Follow up.

Found a fix for now. Need to bind redisCluster client to json get command.

async jsonGet<T>(key: string, field?: string): Promise<T | null> {
    const jsonGet = this.redisCluster.json.get.bind(this.redisCluster);
    const value = await jsonGet(key, { path: field ?? '$' });
    if (value) {
      try {
        return JSON.parse(value as string) as T;
      } catch (error) {
        return value as T;
      }
    }
    return null;
  }