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nestjs-async-cache-dedupe

v1.0.1

Published

A high-performance function call caching and deduplication solution for NestJS, optimizing concurrent function calls and reducing duplicate operations in high-concurrency scenarios.

Downloads

116

Readme

Nest Async Cache Dedupe

Publish Package to NPM

English | 中文

一个用于 NestJS 的高性能函数调用缓存和去重解决方案。专门解决在高并发场景下重复函数调用导致的性能问题。

特性

  • 🚀 支持函数级别的并发调用去重
  • ⚡️ 支持瞬时缓存(无 TTL)和持久缓存
  • 🔄 自动处理相同参数的并发调用
  • 💾 可配置多种存储后端(Memory/Redis)
  • 🎯 完美集成 NestJS 装饰器系统

安装

npm install nest-async-cache-dedupe

快速开始

注册模块

import { AsyncCacheDedupeModule } from 'nest-async-cache-dedupe';

@Module({
  imports: [AsyncCacheDedupeModule.forRoot()],
})
export class AppModule {}

使用装饰器

class SomeService {
  // 瞬时缓存示例(并发去重)
  @AsyncCacheDedupe()
  async fetchData(id: string) {
    // 多个相同参数的并发调用只会执行一次
    return await this.heavyOperation(id);
  }

  // 持久缓存示例
  @AsyncCacheDedupe({
    ttl: 60, // 缓存60秒
  })
  async getUserProfile(userId: string) {
    return await this.userRepository.findOne(userId);
  }
}

使用场景

  1. 并发请求优化:当多个请求同时调用相同的函数和参数时,只执行一次实际操作
  2. 核心业务功能复用:对频繁调用的核心业务函数进行缓存
  3. API 性能优化:减少对数据库或外部服务的重复调用

高级配置

Redis 存储配置

AsyncCacheDedupeModule.forRoot({
  storage: {
    type: 'redis',
    options: {
      host: 'localhost',
      port: 6379
    }
  }
})

开源协议

MIT Licensed