Laravel定期実行タスクの実行結果をSlackで通知する機能実装方法

SLACK_WEBHOOK_URL=https://hooks.slack.com/services/....
SLACK_CHANNEL={チャンネル名を記述}
SLACK_SENDER_NAME={任意の名前を記述}

<?php

return [
  'webhook_url' => env('SLACK_WEBHOOK_URL'),
  'channel' => env('SLACK_CHANNEL'),
  'sender_name' => env('SLACK_SENDER_NAME'),
];

composer require laravel/slack-notification-channel 

php artisan make:notification SendSlackNotification

<?php

namespace App\Notifications;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Notification;
use Illuminate\Notifications\Messages\SlackMessage;

class SendSlackNotification extends Notification
{
    use Queueable;
    protected $message;

    /**
     * Create a new notification instance.
     */
    public function __construct($message)
    {
        $this->message = $message;
    }

    /**
     * Get the notification's delivery channels.
     *
     * @return array<int, string>
     */
    public function via(object $notifiable): array
    {
        return ['slack'];
    }

    public function toSlack($notifiable)
    {
        return (new SlackMessage)
            ->content($this->message);
    }

    /**
     * Get the array representation of the notification.
     *
     * @return array<string, mixed>
     */
    public function toArray(object $notifiable): array
    {
        return [
            //
        ];
    }
}

php artisan make:command TestCommand

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use App\Notifications\SendSlackNotification;
use Illuminate\Support\Facades\Notification;

class TestCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'app:test-command';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Test sending slack notifications';

    /**
     * Execute the console command.
     */
    public function handle()
    {
        $message = 'This is a test notification.';
        Notification::route('slack', config('slack.webhook_url'))
        ->notify(new SendSlackNotification($message));

        $this->info('Test notification sent to Slack: ' . $message);
    }
}

php artisan app:test-command