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Nest Redis Module

Redis(ioredis & node-redis) module for Nest framework (node.js).
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Table of Contents
  1. About The Project
  2. Getting Started
  3. Packages
  4. Usage
  5. FAQs
  6. Roadmap
  7. Contributing
  8. License
  9. Acknowledgments

About The Project

This project is forked from liaoliaots/nestjs-redis.

Features

  • Both redis & cluster are supported: You can also specify multiple instances.
  • Health: Checks health of redis & cluster server.
  • Rigorously tested: With 100+ tests and 100% code coverage.
  • Services: Retrieves redis & cluster clients via RedisManager, ClusterManager.
  • Multiple Redis clients: Support for ioredis only.
  • Health checks: Dedicated health check module for Redis monitoring.

Test coverage

Statements Branches Functions Lines
Statements Branches Functions Lines

Getting Started

Prerequisites

This lib requires Node.js >=16.13.0, NestJS ^10.0.0, ioredis ^5.0.0 or redis ^5.6.0.

  • If you depend on ioredis 5 & NestJS 10, please use version 10 of the lib.
  • If you depend on ioredis 5 & NestJS 9, please use version 9 of the lib.
  • If you depend on ioredis 5, NestJS 7 or 8, please use version 8 of the lib.
  • If you depend on ioredis 4, please use version 7 of the lib.

Installation

For ioredis (Recommended)

# with npm
npm install @nestjs-labs/nestjs-ioredis ioredis
# with yarn
yarn add @nestjs-labs/nestjs-ioredis ioredis
# with pnpm
pnpm add @nestjs-labs/nestjs-ioredis ioredis

For node-redis

# with npm
npm install @nestjs-labs/nestjs-redis redis
# with yarn
yarn add @nestjs-labs/nestjs-redis redis
# with pnpm
pnpm add @nestjs-labs/nestjs-redis redis

For health checks

# with npm
npm install @nestjs/terminus @nestjs-labs/nestjs-redis-health ioredis
# with yarn
yarn add @nestjs/terminus @nestjs-labs/nestjs-redis-health ioredis
# with pnpm
pnpm add @nestjs/terminus @nestjs-labs/nestjs-redis-health ioredis

Packages

This monorepo contains three main packages:

1. @nestjs-labs/nestjs-ioredis

Redis(ioredis) module for Nest framework (node.js).

Features:

  • Full ioredis support with all features
  • Redis cluster support
  • Sentinel support
  • Multiple instances support
  • Comprehensive testing with 100% coverage

Installation:

npm install @nestjs-labs/nestjs-ioredis ioredis

Quick Start:

import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-labs/nestjs-ioredis';

@Module({
  imports: [
    RedisModule.forRoot({
      config: {
        host: 'localhost',
        port: 6379,
        password: 'authpassword'
      }
    }),
  ],
})
export class AppModule {}

2. @nestjs-labs/nestjs-redis

Redis(node-redis) module for Nest framework (node.js).

Features:

  • Official node-redis client support
  • Modern Redis client with latest features
  • TypeScript support
  • Simple and clean API

Installation:

npm install @nestjs-labs/nestjs-redis redis

Quick Start:

import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-labs/nestjs-redis';

@Module({
  imports: [
    RedisModule.forRoot({
      url: 'redis://localhost:6379',
    }),
  ],
})
export class AppModule {}

3. @nestjs-labs/nestjs-redis-health

Redis health checks module for Nest framework (node.js).

Features:

  • Health checks for both Redis and Redis Cluster
  • Integration with @nestjs/terminus
  • Memory threshold monitoring
  • Timeout configuration
  • Comprehensive health indicators

Installation:

npm install @nestjs/terminus @nestjs-labs/nestjs-redis-health ioredis

Quick Start:

import { Module } from '@nestjs/common';
import { TerminusModule } from '@nestjs/terminus';
import { RedisHealthModule } from '@nestjs-labs/nestjs-redis-health';

@Module({
  imports: [TerminusModule, RedisHealthModule],
})
export class AppModule {}

Usage

Legacy

FAQs

Circular dependency ⚠️

Click to expand

A circular dependency might also be caused when using "barrel files"/index.ts files to group imports. Barrel files should be omitted when it comes to module/provider classes. For example, barrel files should not be used when importing files within the same directory as the barrel file, i.e. cats/cats.controller should not import cats to import the cats/cats.service file. For more details please also see this github issue.

"Cannot resolve dependency" error

Click to expand

If you encountered an error like this:

Nest can't resolve dependencies of the <provider> (?). Please make sure that the argument <unknown_token> at index [<index>] is available in the <module> context.

Potential solutions:
- If <unknown_token> is a provider, is it part of the current <module>?
- If <unknown_token> is exported from a separate @Module, is that module imported within <module>?
  @Module({
    imports: [ /* the Module containing <unknown_token> */ ]
  })

Please make sure that the RedisModule is added directly to the imports array of @Module() decorator of "Root Module"(if isGlobal is true) or "Feature Module"(if isGlobal is false).

Examples of code:

// redis-config.service.ts
import { Injectable } from '@nestjs/common';
import { RedisModuleOptions, RedisOptionsFactory } from '@nestjs-labs/nestjs-ioredis';

@Injectable()
export class RedisConfigService implements RedisOptionsFactory {
  createRedisOptions(): RedisModuleOptions {
    return {
      readyLog: true,
      config: {
        host: 'localhost',
        port: 6379,
        password: 'authpassword'
      }
    };
  }
}

✅ Correct

// app.module.ts
import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-labs/nestjs-ioredis';
import { RedisConfigService } from './redis-config.service';

@Module({
  imports: [
    RedisModule.forRootAsync({
      useClass: RedisConfigService
    })
  ]
})
export class AppModule {}

❌ Incorrect

// my-redis.module.ts
import { Module } from '@nestjs/common';
import { RedisModule } from '@nestjs-labs/nestjs-ioredis';
import { RedisConfigService } from './redis-config.service';

@Module({
  imports: [
    RedisModule.forRootAsync({
      useClass: RedisConfigService
    })
  ]
})
export class MyRedisModule {}
// app.module.ts
import { Module } from '@nestjs/common';
import { MyRedisModule } from './my-redis.module';

@Module({
  imports: [MyRedisModule]
})
export class AppModule {}

Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement". Don't forget to give the project a star! Thanks again!

  1. Fork the Project
  2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
  3. Commit your Changes (git commit -m 'Add some AmazingFeature')
  4. Push to the Branch (git push origin feature/AmazingFeature)
  5. Open a Pull Request

License

Distributed under the MIT License. See LICENSE for more information.

Acknowledgments

About

Redis module for Nest framework (node.js). Support node-redis & ioredis.

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