Laravel: Send slack notification after a scheduled task finished

Question

I need to schedule a few tasks on an application built using Laravel and I would like to send a slack notification after those tasks are finished with the output.

Laravel provides an "after" hook (https://laravel.com/docs/5.8/scheduling#task-hooks) so I can do something like this:

$schedule->command('mycommand')
     ->daily()
     ->after(function () {
         // How can I access the command's name and output from here?
     });

I've tried with $this->output but $this points to App\Console\Kernel and it says Undefined property: App\Console\Kernel::$output. I've also tried to pass a parameter to the closure, but I think I need to specify a type, but I have no idea and the documentation is not very clear.

Anyone has any idea on how to do this?

Thanks in advance!

Answer 1

Assuming you have this in your command

$this->info('hello');

In your kernel, you can send the output to a temporary file and then read the file and send it

/** @var \Illuminate\Console\Scheduling\Event $command */
$command = $schedule->command('mycommand')
    ->daily()
    ->sendOutputTo('storage/app/logs.txt');

$command->after(function () use ($command) {
    \Log::debug([$command->command, $command->output]);
    \Log::debug(file_get_contents($command->output));
});

You will get

[2019-10-11 13:03:38] local.DEBUG: array (
  0 => '\'/usr/bin/php7.3\' \'artisan\' command:name',
  1 => 'storage/app/logs.txt',
)  
[2019-10-11 13:03:38] local.DEBUG: hello 

Maybe it would be the time to re-open this proposal https://github.com/laravel/ideas/issues/122#issuecomment-228215251