CacheModule in multiple modules not loading the config properly

[GustavoKatel]

CacheModule in multiple modules not loading the config properly

[drdreo]

I also ran into this. But after upgrading from 10.2.10 --> @nestjs/[email protected] and @nestjs/[email protected].
In thisprovided repo the tests fail , there is also a working branch.

[quangtran88]

While testing with the following versions:

"@nestjs/cache-manager": "2.2.2",
"@nestjs/common": "^10.3.10",
"@nestjs/core": "^10.3.10"

the issue seems resolved, but a strange bug occurs when CacheModule is registered with the same configuration. It shares the same cache store even if it is imported by different modules. Here is the reproduction: https://codesandbox.io/p/devbox/nestjs-cache-register-bug-2snp4k?file=%2Fsrc%2Fapp.spec.ts

After investigation, I realized that the useFactory function provided by CACHE_MANAGER is only called when the options parameter is registered differently.

cache-manager/lib/cache.providers.ts

Line 19 in 65d7101

useFactory: async (options: CacheManagerOptions) => {

Is there any caching mechanism applied when initializing a dynamic provider here related to ConfigurableModuleBuilder? If so, I think we can fix this issue by generating a unique ID each time the CacheModule is registered, like the following:

static register<StoreConfig extends Record<any, any> = Record<string, any>>(
    options: CacheModuleOptions<StoreConfig> = {} as any,
  ): DynamicModule {
    return {
      global: options.isGlobal,
      ...super.register({ ...options, id: <UNIQUE_ID> }),
    };
  }