nestjs-redis | nestjs redis module - Redis component for NestJs | Web Framework library

i'm new in NestJS and have some misunderstands with @liaoliaots/nestjs-redis(https://github.com/liaoliaots/nestjs-redis) package. For example, i have a guard with following constructor:

I've followed the instruction from nestjs-redis documentation to register RedisModule but it gives me the following error message. I am new to Nest.js and have no idea how to fix this error. If you know the better way to use Redis with nestjs, please suggest me.

Nest can't resolve dependencies of the RedisCoreModule (Symbol(REDIS_MODULE_OPTIONS), ?). Please make sure that the argument ModuleRef at index [1] is available in the RedisCoreModule context.

Potential solutions:

• If ModuleRef is a provider, is it part of the current RedisCoreModule?
• If ModuleRef is exported from a separate @Module, is that module imported within RedisCoreModule? @Module({ imports: [ /* the Module containing ModuleRef */ ] })

my app.module

I am trying to mock and spy on the redis set method in my nestjs setup, but I don't think that it is working as it should.

I am trying to connect my Nestjs application to Redis as follows:

This the content of my docker-compose.yml

I want to use @nestjs to manage configuration files.

Now I have used the following ways to connect mysql and redis.

I want to write a unit test for my nestjs 'Course' repository service (a service that has dependencies on Mongoose Model and Redis).

courses.repository.ts: