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@svton/nestjs-cache

v2.0.0

Published

NestJS cache decorators with Redis support (@Cacheable, @CacheEvict, @CachePut)

Downloads

142

Readme

@svton/nestjs-cache

NestJS 缓存装饰器模块,基于 Redis,提供 @Cacheable@CacheEvict@CachePut 装饰器。

安装

pnpm add @svton/nestjs-cache @svton/nestjs-redis

使用

模块注册

import { Module } from '@nestjs/common';
import { RedisModule } from '@svton/nestjs-redis';
import { CacheModule } from '@svton/nestjs-cache';

@Module({
  imports: [
    RedisModule.forRoot({ host: 'localhost', port: 6379 }),
    CacheModule.forRoot({
      ttl: 3600,      // 默认 TTL (秒)
      prefix: 'app',  // Key 前缀
    }),
  ],
})
export class AppModule {}

@Cacheable - 缓存方法结果

import { Cacheable } from '@svton/nestjs-cache';

@Injectable()
export class UserService {
  @Cacheable({ key: 'user:#0', ttl: 3600 })
  async getUser(id: string) {
    return this.userRepo.findById(id);
  }
}

@CacheEvict - 清除缓存

import { CacheEvict } from '@svton/nestjs-cache';

@Injectable()
export class UserService {
  @CacheEvict({ key: 'user:#0' })
  async updateUser(id: string, data: UpdateUserDto) {
    return this.userRepo.update(id, data);
  }

  @CacheEvict({ key: 'user:*', allEntries: true })
  async clearAllUserCache() {
    // 清除所有 user:* 缓存
  }
}

@CachePut - 强制更新缓存

import { CachePut } from '@svton/nestjs-cache';

@Injectable()
export class UserService {
  @CachePut({ key: 'user:#0', ttl: 3600 })
  async refreshUser(id: string) {
    return this.userRepo.findById(id);
  }
}

Key 表达式

  • #0, #1 - 方法参数位置
  • #id, #userId - 从 request.params/body/query 获取

License

MIT