Redis 연동

버전

"@nestjs/cache-manager": "^2.2.2",

"@types/cache-manager": "^4.0.6",

"cache-manager-redis-store": "2.0.0",

"@types/cache-manager-redis-store": "^2.0.4",

"cache-manager": "^5.7.1",

install

yarn instlal @nestjs/cache-manager cache-manager-redis-store@2.0.0 

yarn install -D @types/cache-manager @types/cache-manager-redis-store

코드

• app.module.ts

// ... 생략
import { CacheModule } from '@nestjs/cache-manager';
import { CacheConfigService } from './common/cacheConfig.service';

@Module({
  imports: [
	// ... 생략
    CacheModule.registerAsync({ isGlobal: true, useClass: CacheConfigService }),
  ],
})
export class AppModule {}

• cache-config.service

import { CacheModuleOptions, CacheOptionsFactory } from '@nestjs/cache-manager';
import { Injectable } from '@nestjs/common';
import redisStore from 'cache-manager-redis-store';

@Injectable()
export class CacheConfigService implements CacheOptionsFactory {

  createCacheOptions(): CacheModuleOptions {
    const config: CacheModuleOptions = {
      store: redisStore,
      host: 'localhost',
      port: 6379,
      ttl: 60,
    };
    return config;
  }
}

• boards-resolver.ts

import { Args, Mutation, Query, Resolver } from '@nestjs/graphql';
import { BoardsService } from './boards.service';
import { CreateBoardInput } from './dto/create-board.input';
import { Cache } from 'cache-manager';
import { Inject } from '@nestjs/common';
import { CACHE_MANAGER } from '@nestjs/cache-manager';

@Resolver()
export class BoardsResolver {
  constructor(
    private readonly boardsService: BoardsService, 

    // redis관련 코드
    @Inject(CACHE_MANAGER)
    private readonly cacheManager: Cache,
  ) {}

  // redis관련 코드
  @Query(() => String, { nullable: true }) 
  async fetchBoards(): Promise<string> {
    const mycache = await this.cacheManager.get('qqq');
    console.log(mycache);

    return '캐시에서 조회 완료!!';
  }
 
  // redis관련 코드
  @Mutation(() => String)
  async createBoard(
       @Args('createBoardInput') createBoardInput: CreateBoardInput,
  ): Promise<string> {
    await this.cacheManager.set('qqq', createBoardInput, 0);

    return '캐시에 등록 완료!!';

  }
 }