How to create a scheduled Task in Laravel ?

Hello everyone! Today, I’m going to walk you through the process of creating a scheduled task in Laravel. We’ll take the example of sending a daily marketing email to users.

Step 1: Create the Email Class

First, let’s create a new Mailable class using the following Artisan command:

php artisan make:mail DailyMarketingEmail --view

This command generates a new Mailable class in the App/Mail directory, along with a corresponding view file, daily-marketing-email.blade.php, inside the resources/views/mail/ directory. You can customize the content of the email within this view file.

Step 2: Create an Artisan Command

Next, we’ll create an Artisan command that will handle sending our DailyMarketingEmail. Run the following command:

php artisan make:command SendDailyMarketingEmail

This command will generate a new command class in the app/Console/Commands directory.

Step 3: Understand the Command Structure

After generating your command, you'll see two key properties in the generated class:

protected $signature: This defines the name and signature of your Artisan command.
protected $description: This provides a description of your command.
The handle method in this class is where you’ll define the logic of your command.

After everything is set up, you can list all your Artisan commands by running:

php artisan

You should see your command in the list:

Step 4: Implement the Command Logic

Now, let’s define the logic within the handle method to send the marketing emails:

<?php namespace App\Console\Commands;

use App\Models\User;
use Illuminate\Console\Command;
use App\Mail\DailyMarketingMail;
use Illuminate\Support\Facades\Mail;

class SendDailyMarketingEmails extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'app:send-daily-marketing-emails';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Send a marketing email to all users';

    /**
     * Execute the console command.
     */
    public function handle()
    {
        $users = User::get(); 

        $users->each(function ($user) {
            Mail::to($user->email)->send(new DailyMarketingEmail);
        });

    }
}

In the handle method, we retrieve all users from the database and send each one the DailyMarketingEmail.

Step 5: Testing the Command

You can manually test your command by running:

php artisan app:send-daily-marketing-emails

Consider using tools like Mailtrap or MailHog to catch and view the sent emails during testing.

Step 6: Schedule the Command

Finally, to automate the sending of this email daily, we need to schedule the command in the schedule method of the Kernel.php file located in the app/Console/ directory:

<?php namespace App\Console;

use Illuminate\Console\Scheduling\Schedule;
use Illuminate\Foundation\Console\Kernel as ConsoleKernel;

class Kernel extends ConsoleKernel
{
    /**
     * Define the application's command schedule.
     */
    protected function schedule(Schedule $schedule): void
    {
        $schedule->command('app:send-daily-marketing-emails')->dailyAt('08:30'); 
    }

    /**
     * Register the commands for the application.
     */
    protected function commands(): void
    {
        $this->load(__DIR__.'/Commands');

        require base_path('routes/console.php');
    }
}

Here, we use the dailyAt('08:30') method to schedule the command to run every day at 08:30 AM. You can adjust the time as needed.

Additional Suggestions:

1. Queueing Emails: For a large number of users, it's a good practice to queue the emails rather than sending them all at once. This can be done by implementing the ShouldQueue interface in the Mailable class.

2. Performance Considerations: For large user bases, consider optimizing database queries and the email sending process to ensure efficient performance.

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