Nest 使用 redis

创建项目：

bash
1nest new redis-next-test -p pnpm

安装 redis 包

bash
1pnpm install redis

appModule 中使用 useFactory 动态注入 redis Provider。

typescript
1@Module({
2  imports: [],
3  controllers: [AppController],
4  providers: [
5    AppService,
6    {
7      provide: 'REDIS_Client',
8      useFactory: async () => {
9        const client = createClient({
10          socket: {
11            host: 'localhost',
12            port: 6379,
13          },
14        });
15        await client.connect();
16        return client;
17      },
18    },
19  ],
20})

注入到 service 并获取所有的 keys

typescript
1import { Inject, Injectable } from '@nestjs/common'
2import { RedisClientType } from 'redis'
3
4@Injectable()
5export class AppService {
6  constructor(@Inject('REDIS_Client') private readonly redisClient: RedisClientType) {}
7  async getHello(): Promise<string> {
8    const allKeys = await this.redisClient.keys('*')
9    console.log('——————🚀🚀🚀🚀🚀 —— allKeys:', allKeys)
10    return 'Hello World!'
11  }
12}