如何扩展laravel记录器？

Question

I have created different files for different level of logging e.g Log::info, Log::error etc. Now I also want to send a message to slack only if an error comes. I have done this too by writing following code in app/bootstrap.php

$app->configureMonologUsing( function($monolog) {
    $slackHandler = new Monolog\Handler\SlackHandler(env('SLACK_TOKEN'), env('SLACK_CHANNEL'), 'Monolog', true, null, Monolog\Logger::ERROR);
    $monolog->pushHandler($slackHandler);
});

but it has overrided the default logger and now only slack logger is working and no logs are adding in storage/logs/ folder

Answer 1

The docs are pretty vague on what exactly this does but it looks like configureMonologUsing configures Monolog to use only the handlers which you specifically add to it. This means the handlers (I believe StreamHandler) which Laravel sets up to log to the laravel.log file are never added.

I'd recommend not using that and dropping this code into your AppServiceProvider which will add the new handler while keeping all the default handlers Laravel likes to add...

$monolog = \Log::getMonolog();
$slackHandler = new \Monolog\Handler\SlackHandler(env('SLACK_TOKEN'), env('SLACK_CHANNEL'), 'Monolog', true, null, Monolog\Logger::ERROR);
$monolog->pushHandler($slackHandler);