Laravel API Verification Message

api.php

// Email Verification
Route::post('email/verify/{id}/{hash}', 'Auth\VerificationController@verify')->name('api.verification.verify');

EmailVerificationNotification.php

<?php

namespace App\Notifications\API\Auth;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Notification;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Config;
use Illuminate\Support\Facades\Lang;
use Illuminate\Support\Facades\URL;

class EmailVerificationNotification extends Notification
{
    use Queueable;

    /**
     * Create a new notification instance.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     * Get the notification's delivery channels.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function via($notifiable)
    {
        return ['mail'];
    }

    /**
     * Get the mail representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return \Illuminate\Notifications\Messages\MailMessage
     */
    public function toMail($notifiable)
    {
        $verificationUrl = $this->verificationUrl($notifiable);

        return (new MailMessage)
            ->subject(Lang::get('Verify Email Address'))
            ->line(Lang::get('Please click the button below to verify your email address.'))
            ->action(Lang::get('Verify Email Address'), $verificationUrl)
            ->line(Lang::get('If you did not create an account, no further action is required.'));
    }

    /**
     * Get the verification URL for the given notifiable.
     *
     * @param  mixed  $notifiable
     * @return string
     */
    protected function verificationUrl($notifiable)
    {
        $prefix = config('frontend.url') . config('frontend.email_verify_url');

        $signed_url =  URL::temporarySignedRoute(
            'api.verification.verify',
            Carbon::now()->addMinutes(Config::get('auth.verification.expire', 60)),
            [
                'id' => $notifiable->getKey(),
                'hash' => sha1($notifiable->getEmailForVerification()),
            ]
        );

        return $prefix . urlencode($signed_url);
    }

    /**
     * Get the array representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function toArray($notifiable)
    {
        return [
            //
        ];
    }
}

frontend.php

<?php

return [
    // frontend URL
    'url' => env('APP_URL'),
    // path to my frontend page with query param queryURL(temporarySignedRoute URL)
    'email_verify_url' => env('FRONTEND_EMAIL_VERIFY_URL', '/email/verify?queryURL='),
];