Discussion on: Setting Up Sessions with NestJS, Passport, and Redis

[Kalle210496]

Just want to mention that this guide does not work with redis package version 4.
After troubleshooting I couldn't find a solution other than downgrading to ^3.1.2. Redis throws an error (below).

Some notes I discovered with redis v4+:
The type RedisClient is RedisClientType
host / port options for createClient have to be replaced by "url" option

Redis fails with:
return Promise.reject(new errors_1.ClientClosedError());
Error: The client is closed

[Jesse M. Holmes]

Your error, The client is closed, is due to this breaking change.

You’ll need to make a change to the code above (in addition to the changes you already mentioned, like the url property) to call connect() on your new client, or you will get an error from connect-redis asking you to supply the client directly. I’m writing this from my phone at 1:30am, so if it doesn’t come out right, I’ll fix it in the morning. 😂

import { Module } from '@nestjs/common';
import * as Redis from 'redis';

import { REDIS } from './redis.constants';

@Module({
  providers: [
    {
      provide: REDIS,
      useFactory: async () => {
        const client = Redis.createClient({
          url: 'rediss://username:[e-mail]', 
          legacyMode: true 
        })
        await client.connect()
        return client
      },
    },
  ],
  exports: [REDIS],
})
export class RedisModule {}

[Jay McDoniel]

Thank you for pointing this out!