@anchan828/nest-cache

A cache module for Nest framework (node.js) https://nestjs.com/

Installation

$ npm i --save @anchan828/nest-cache

Quick Start

• Import module

@Module({
  imports: [CacheModule.register()],
})
export class AppModule {}

@Injectable()
export class ExampleService {
  constructor(private readonly cacheService: CacheService) {}

  private items: Item[] = Array(5)
    .fill(0)
    .map((_, index) => ({ id: index, name: `Item ${index}` }));

  public async getItems(userId: number): Promise<Item[]> {
    const cacheKey = `users/${userId}/items`;

    const cache = await this.cacheService.get<Item[]>(cacheKey);

    if (cache) {
      return cache;
    }

    await this.cacheService.set(cacheKey, this.items);

    return this.items;
  }
}

Using In-memory

@anchan828/nest-cache has been extended to make more Redis commands available. In line with this, the memory store also provides compatibility features. Please use @anchan828/nest-cache-manager-memory instead of the default memory store.

import { memoryStore } from "@anchan828/nest-cache-manager-memory";

@Module({
  imports: [
    CacheModule.register({
      store: memoryStore,
    }),
  ],
})
export class AppModule {}

Using Redis

You can use Redis instead of in-memory cache. Please use @anchan828/nest-cache-manager-ioredis

@anchan828/nest-cache-manager-ioredis has the ability to cache Redis results in AsyncLocalStorage. This is useful for elements that need to be accessed frequently.

import { redisStore } from "@anchan828/nest-cache-manager-ioredis";
const asyncLocalStorage = new AsyncLocalStorage<Map<string, any>>();
@Module({
  imports: [
    CacheModule.register({
      store: redisStore,
      host: "localhost",
      asyncLocalStorage,
    }),
  ],
})
export class AppModule {}

Supported for more Redis commands

• hget
• hset
• hdel
• hgetall
• hkeys

License

MIT