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How to Create Cron Job in Magento 2
Magento 2 Create Cron Job is setting an automatic schedule on time, that is really convenient when you run Magento 2 store. Why is it such useful function? For example, you need assitance from a software like website statistics or content management system which require to run at the certain time, however, maybe you are unavailable to do that. That is why you must create the Cron Job on your web server.
Are you looking for a understanable tutorial? This post is all for you. The simple and clear instructions will be mentioned here.
Tables of Contents
- What is Cron Job?
- Why need Cron Job?
- Run and Create Cron Job
- Create crontab.xml
- Create Test.php
What is a Cron Job?
Cron job is a great feature by Linux, the free operating system for the user. The cron job will create a command or a script that is appropriate with the task you want to do. Instead of manual working, the cronjob allows running automatically in exact time and date. Due to its automation, the cron jobs is the perfect choice for repeated projects every date or every week.
Note : Cron configuration is very important in Magento to set the schedule for many system activities such as reindexing, auto-update of currency rates, Magento emails, etc. Only when the configuration is correct, the cron job is active. In the case of making an error, this means Magento won’t function as expected.
Why need Cron Job
Several Magento features require at least one Cron Job, which schedules activities to occur in the future. A partial list of these activities follows:
- Catalog price rules
- Generating Google sitemaps
- Customer Alerts/Notifications (product price change, product back in stock)
- Private sales (Magento Commerce only)
- Automatic updating of currency rates
- All Magento e-mails (including order confirmation and transactional)
Run and Create cron job
Please follow the guides to start the cron job program as your wish while the cron schedule is set by you.
- Create a class within the “Cron” folder
- Manually setup the cron schedule by using PHP:
- Find a log in the
var/log/system.logafter the cronjob has run.
- Login to Magento 2 Admin panel, do as the path:
Stores > Configuration > Advanced > System, then changing scheduler settings per cron group.
- Finally, run cron from the command line:
magento cron:run [--group="<cron group name>"]
Now, We will add a custom cron in HelloWorld module.
Content would be
<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module: Magento_Cron:etc/crontab.xsd">
<job instance="Magetop\HelloWorld\Cron\Test" method="execute" name="magetop_helloworld_cron">
<schedule>* * * * *</schedule>
group idis your cron group name. You can run only cron for single group at a time.
job instanceis class to be instantiated (classpath).
job methodis method in job instance to call.
job nameis Unique ID for this cron job.
scheduleis schedule in cron format. The following graph shows what it consists of:
* * * * * command to be executed
| | | | |
| | | | +----- Day of week (0 - 7) (Sunday=0 or 7)
| | | +------- Month (1 - 12)
| | +--------- Day of month (1 - 31)
| +----------- Hour (0 - 23)
+------------- Minute (0 - 59)
crontab.xml, we have defined
job instance is
Magetop\HelloWorld\Cron\Test. It should create now.
Content would be:
public function execute()
$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/cron.log');
$logger = new \Zend\Log\Logger();
All done, please flush cache and run
magento cron:run --group="default" from the command line.
To check whether the Cron is working properly, go to
var/log/cron.log of your store and you will see the text
Magetop\HelloWorld\Cron\Test::execute in it.