Cron Jobs

A scheduled method or a cron job is a method that will run periodically. By using a specific cron syntax, you can define the frequency and timing for each method.

tip

The time specified in the cron strings is in UTC. You can use this converter to convert your local time to UTC.

Use scheduled methods in your project

There are two ways to declare a scheduled method:

Using decorators (only available for TypeScript, JavaScript and Go projects)
Using the genezio.yaml configuration file (available for all supported languages, including TypeScript, JavaScript, Go)

Decorators (TS/JS)
Decorators (Go)
Configuration File (All supported languages)

cron.ts
import { GenezioDeploy, GenezioMethod } from "@genezio/types";

@GenezioDeploy()
export class BackendService {
    @GenezioMethod({ type: "cron", cronString: "* * * * *" })
    sayHiEveryMinute() {
        console.log("I will run every minute!");
    }
}

cron.go
package cron

import "fmt"

// geenzio: deploy
type CronService struct {}

func New() CronService {
    return CronService{}
}

// genezio: cron * * * * *
func (s CronService) SayHiEveryMinute() {
    fmt.Println("I will run every minute!")
}

genezio.yaml
name: cron-example
yamlVersion: 2
backend:
  path: .
  language:
    name: go
  classes:
    # You need to identify the class by the source file
    - path: cron.go
      methods:
        # You need to identify the method by the name
        - name: sayHiEveryMinute
          # Specify the `cron` method type
          type: cron
          # Specify the cron string that defines the frequency and timing
          cronString: * * * * *

Cron strings examples

Below, you have the most commonly used cronString examples:

Cron string	Description
`* * * * *`	Triggers at every minute
`0/5 * * * *`	Triggers every 5 minutes
`0 * * * *`	Triggers every hour
`0 8 * * *`	Triggers every day at 8 a.m.

You can, also, use crontab.guru to build specific cron strings.

Examples using scheduled methods

info

For more details, check out an example using scheduled methods.

More details

For more information on genezio decorators, check out Genezio Decorators.

Next Steps

Also, you can find more details on deploying the backend and frontend here:

Now you are ready for some more advanced use cases:

Cron Jobs

Use scheduled methods in your project​

Cron strings examples​

Examples using scheduled methods​

More details​

Next Steps​

Use scheduled methods in your project

Cron strings examples

Examples using scheduled methods

More details

Next Steps