@nestjs/schedule

What is @nestjs/schedule?

@nestjs/schedule is a scheduling module for NestJS applications that allows you to easily create and manage scheduled tasks. It provides decorators and utilities to define cron jobs, timeouts, and intervals in a declarative way.

What are @nestjs/schedule's main functionalities?

Cron Jobs

This feature allows you to define cron jobs using the @Cron decorator. The example demonstrates a task that runs every 10 seconds.

```typescript
import { Injectable } from '@nestjs/common';
import { Cron, CronExpression } from '@nestjs/schedule';

@Injectable()
export class TasksService {
  @Cron(CronExpression.EVERY_10_SECONDS)
  handleCron() {
    console.log('Called every 10 seconds');
  }
}
```

Timeouts

This feature allows you to define one-time tasks that execute after a specified delay using the @Timeout decorator. The example demonstrates a task that runs once after 5 seconds.

```typescript
import { Injectable } from '@nestjs/common';
import { Timeout } from '@nestjs/schedule';

@Injectable()
export class TasksService {
  @Timeout(5000)
  handleTimeout() {
    console.log('Called once after 5 seconds');
  }
}
```

Intervals

This feature allows you to define recurring tasks that execute at specified intervals using the @Interval decorator. The example demonstrates a task that runs every 10 seconds.

```typescript
import { Injectable } from '@nestjs/common';
import { Interval } from '@nestjs/schedule';

@Injectable()
export class TasksService {
  @Interval(10000)
  handleInterval() {
    console.log('Called every 10 seconds');
  }
}
```

Other packages similar to @nestjs/schedule

node-cron

node-cron is a lightweight npm package for scheduling tasks in Node.js using cron syntax. It is not specific to any framework and can be used in any Node.js application. Compared to @nestjs/schedule, node-cron provides a more general-purpose solution but lacks the integration and decorators provided by NestJS.

agenda

Agenda is a job scheduling package for Node.js with MongoDB as a backend. It provides a more feature-rich solution for job scheduling, including job persistence, retries, and job prioritization. Compared to @nestjs/schedule, Agenda offers more advanced features but requires additional setup and configuration.

bull

Bull is a Redis-based queue system for Node.js that supports job scheduling, retries, and concurrency. It is designed for handling background jobs and tasks. Compared to @nestjs/schedule, Bull is more suitable for complex job processing scenarios and provides more control over job execution and management.

README

A progressive Node.js framework for building efficient and scalable server-side applications, heavily inspired by Angular.

Description

Schedule module for Nest based on the cron package.

Installation

$ npm i --save @nestjs/schedule

Quick Start

Overview & Tutorial

Support

Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support by the amazing backers. If you'd like to join them, please read more here.

Stay in touch

• Author - Kamil Myśliwiec
• Website - https://nestjs.com
• Twitter - @nestframework

License

Nest is MIT licensed.