Merge pull request #2333 from yepMad/patch-1

docs(caching): update redis custom host and port

Author: kamilmysliwiec

content/techniques/caching.md

@@ -220,28 +220,29 @@ class HttpCacheInterceptor extends CacheInterceptor {
 This service takes advantage of [cache-manager](https://github.com/BryanDonovan/node-cache-manager) under the hood. The `cache-manager` package supports a wide-range of useful stores, for example, [Redis store](https://github.com/dabroek/node-cache-manager-redis-store). A full list of supported stores is available [here](https://github.com/BryanDonovan/node-cache-manager#store-engines). To set up the Redis store, simply pass the package together with corresponding options to the `register()` method.
 
 ```typescript
-import type { RedisClientOptions } from 'redis';
+import type { ClientOpts } from 'redis';
 import * as redisStore from 'cache-manager-redis-store';
 import { CacheModule, Module } from '@nestjs/common';
 import { AppController } from './app.controller';
 
 @Module({
   imports: [
-    CacheModule.register<RedisClientOptions>({
+    CacheModule.register<ClientOpts>({
       store: redisStore,
 
       // Store-specific configuration:
-      socket: {
-        host: 'localhost',
-        port: 6379,
-      },
+      host: 'localhost',
+      port: 6379,
     }),
   ],
   controllers: [AppController],
 })
 export class AppModule {}
 ```
 
+> warning**Warning** `cache-manager-redis-store` does not support redis v4. In order for the `ClientOpts` interface to exist and work correctly you need to install the
+> latest `redis` 3.x.x major release. See this [issue](https://github.com/dabroek/node-cache-manager-redis-store/issues/40) to track the progress of this upgrade.
+
 #### Async configuration
 
 You may want to asynchronously pass in module options instead of passing them statically at compile time. In this case, use the `registerAsync()` method, which provides several ways to deal with async configuration.