What is @nestjs/cache-manager?
@nestjs/cache-manager is a caching module for the NestJS framework that provides a simple and efficient way to manage caching in your application. It supports various caching stores and strategies, making it flexible and powerful for different use cases.
What are @nestjs/cache-manager's main functionalities?
Basic Caching
This feature allows you to set up basic caching in your NestJS application. You can configure the time-to-live (ttl) and the maximum number of items in the cache.
const { CacheModule } = require('@nestjs/cache-manager');
const { Module } = require('@nestjs/common');
@Module({
imports: [
CacheModule.register({
ttl: 5, // seconds
max: 10, // maximum number of items in cache
}),
],
})
export class AppModule {}
Using Cache Interceptors
This feature demonstrates how to use cache interceptors to automatically cache the response of a controller method. This can be useful for reducing the load on your server by caching frequently requested data.
const { CacheInterceptor, CacheModule } = require('@nestjs/cache-manager');
const { Controller, Get, UseInterceptors } = require('@nestjs/common');
@Controller('cats')
@UseInterceptors(CacheInterceptor)
export class CatsController {
@Get()
findAll() {
return [{ name: 'Tom' }, { name: 'Jerry' }];
}
}
Custom Cache Store
This feature allows you to use a custom cache store, such as Redis, for your caching needs. This can be useful for distributed caching scenarios where you need a more robust and scalable caching solution.
const { CacheModule } = require('@nestjs/cache-manager');
const { Module } = require('@nestjs/common');
const * as redisStore from 'cache-manager-redis-store';
@Module({
imports: [
CacheModule.register({
store: redisStore,
host: 'localhost',
port: 6379,
}),
],
})
export class AppModule {}
Other packages similar to @nestjs/cache-manager
cache-manager
cache-manager is a popular caching library for Node.js that supports multiple storage engines, including in-memory, Redis, and more. It provides a flexible and powerful API for managing cache, similar to @nestjs/cache-manager, but it is not specific to the NestJS framework.
node-cache
node-cache is a simple and efficient in-memory caching solution for Node.js. It is easy to use and provides basic caching functionalities. However, it lacks the advanced features and integrations provided by @nestjs/cache-manager.
redis
redis is a powerful in-memory data structure store that can be used as a cache, database, and message broker. While it is not a caching library per se, it is often used in conjunction with caching libraries like @nestjs/cache-manager to provide a robust caching solution.