npm package: @nestjs-modules-terry/ioredis
Description: Nest - a ioredis module (@ioredis)
Author: Nest Modules TM
Latest version: 2.0.3

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  <a href="http://nestjs.com/" target="blank">
    <img src="https://nestjs.com/img/logo_text.svg" width="320" alt="Nest Logo" />
  </a>
</p>

<p align="center">
  A ioredis module for Nest framework (node.js) using <a href="https://github.com/luin/ioredis">ioredis</a> library
</p>

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  <a href="https://www.npmjs.com/org/nestjs-modules"><img src="https://img.shields.io/npm/v/@nestjs-modules/ioredis.svg" alt="NPM Version" /></a>
  <a href="https://www.npmjs.com/org/nestjs-modules"><img src="https://img.shields.io/npm/l/@nestjs-modules/ioredis.svg" alt="Package License" /></a>
  <a href="https://www.npmjs.com/org/nestjs-modules"><img src="https://img.shields.io/npm/dm/@nestjs-modules/ioredis.svg" alt="NPM Downloads" /></a>
</p>

### Installation

#### with npm
```sh
npm install --save @nestjs-modules/ioredis ioredis
```

#### with yarn
```sh
yarn add @nestjs-modules/ioredis ioredis
```

### How to use?

#### RedisModule.forRoot(options, connection?)

##### Single Type (forRoot)

```ts
import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-modules/ioredis';
import { AppController } from './app.controller';

@Module({
  imports: [
    RedisModule.forRoot({
      type: 'single',
      url: 'redis://localhost:6379',
    }),
  ],
  controllers: [AppController],
})
export class AppModule {}
```

##### Cluster Type (forRoot)

```ts
import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-modules/ioredis';
import { AppController } from './app.controller';

@Module({
  imports: [
    RedisModule.forRoot({
      type: 'cluster',
      nodes: [
        {
          host: '127.0.0.1',
          port: 6379
        },
        {
          host: '127.0.0.2',
          port: 6379
        }
      ],
      options: {
        redisOptions: {
          password: '123456'
        }
      }
    }),
  ],
  controllers: [AppController],
})
export class AppModule {}
```

#### RedisModule.forRootAsync(options, connection?)

##### Single Type (forRootAsync)  

```ts
import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-modules/ioredis';
import { AppController } from './app.controller';

@Module({
  imports: [
    RedisModule.forRootAsync({
      useFactory: () => ({
        type: 'single',
        url: 'redis://localhost:6379',
      }),
    }),
  ],
  controllers: [AppController],
})
export class AppModule {}
```

##### Cluster Type (forRootAsync)  

```ts
import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-modules/ioredis';
import { AppController } from './app.controller';

@Module({
  imports: [
    RedisModule.forRootAsync({
      useFactory: () => ({
        type: 'cluster',
        nodes: [
          {
            host: '127.0.0.1',
            port: 6379
          },
            {
            host: '127.0.0.2',
            port: 6379
          }
        ],
        options: {
          redisOptions: {
            password: '123456'
          }
        }
      }),
    }),
  ],
  controllers: [AppController],
})
export class AppModule {}
```

#### InjectRedis(connection?)

```ts
import Redis from 'ioredis';
import { Controller, Get } from '@nestjs/common';
import { InjectRedis } from '@nestjs-modules/ioredis';

@Controller()
export class AppController {
  constructor(
    @InjectRedis() private readonly redis: Redis,
  ) {}

  @Get()
  async getHello() {
    await this.redis.set('key', 'Redis data!');
    const redisData = await this.redis.get("key");
    return { redisData };
  }
}
```

#### How to use the Redis indicator for the Terminus library?"

```js
//health.module.ts
import { Module } from '@nestjs/common';
import { TerminusModule } from '@nestjs/terminus';
import { RedisHealthModule, } from '@nestjs-modules/ioredis';

@Module({
  imports: [TerminusModule, RedisHealthModule],
  controllers: [HealthController]
})
export class HealthModule {}
```

```js
//health.controller.ts
import { Controller, Get } from '@nestjs/common';
import {
  HealthCheckService,
  HealthCheck,
  HealthCheckResult
} from '@nestjs/terminus';
import { RedisHealthIndicator } from './redis.health';

@Controller('health')
export class HealthController {
  constructor(
    private health: HealthCheckService,
    private redis: RedisHealthIndicator,
  ) {}

  @Get()
  @HealthCheck()
  check(): Promise<HealthCheckResult> {
    return this.health.check([
      async () => this.redis.isHealthy('redis'),
    ]);
  }
}
```

## License

MIT