Set up Monolog in Laravel global middleware - php

Question

In my local environment I want all logs (all flags) to go the browser's console (BrowserConsoleHandler) and then to the default StreamHandler.
In production, I want the errors and other critical messages to go to an e-mail then stored in the database or (if fails) to a log file (default StreamHandler)
I want to set up this in a global middle-ware that I have created, which looks like this now:
<?php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\Log;
use Monolog\Logger;
use Monolog\Handler\BrowserConsoleHandler;
class GlobalConfig
{
/**
* Handle an incoming request.
*
* #param \Illuminate\Http\Request $request
* #param \Closure $next
* #return mixed
*/
public function handle($request, Closure $next)
{
// Get Monolog instance
$monolog = Log::getMonolog();
// In local environment the logs will be shown on browser
if (App::environment('local')) {
// Show logs in browser console
$monolog -> pushHandler(new BrowserConsoleHandler());
} else {
// Here we set up for production
}
Log::debug("Browser handler working");
return $next($request);
}
}
This doesn't work (the message is stored in the log file only, not shown on console). What I can't figure out is how to let the Log facade know about this new handler, because here, as is obvious, things are only changed within the function's scope. I know I can do it in bootstrap/app.php but isn't it to early to get the environment? Also, if I need to save logs to the database, it must already be connected, I guess

Answer 1

You can try to do next in bootstrap\app.php
if(env('APP_ENV') == 'local') {
$app->configureMonologUsing(function($monolog) use ($app) {
$monolog->pushHandler(
$handler = new \Monolog\Handler\RotatingFileHandler(
$app->storagePath().'/logs/laravel.log',
$app->make('config')->get('app.log_max_files', 30),
\Monolog\Logger::DEBUG
)
);
$handler->setFormatter(new \Monolog\Formatter\LineFormatter(null, null, true, true));
$monolog->pushHandler(new \Monolog\Handler\NativeMailerHandler(
'to#mail.com',
'Log::error!',
'from#mail.com'
));
});
}
Idea here is to fully control your logging on live/local. Bad news - configureMonologUsing replace all default laravel loggers, so you need to configure all your logs manually here.

Answer 2

Middleware isn't really the place for this, unless you wanted to actually make a particular log entry at some point in the request cycle.
Your call to pushHandler belongs in bootstrap/app.php (in Laravel 5.2), according to the docs.
I would think it would be possible to extract this logic out into a provider in case it becomes complicated and you need to move it out of bootstrap/app.php

Answer 3

solution here
BrowserConsoleHandler sends the script snipped after finishing the php
script by register_shutdown_function(). At this time, Laravel already
sent the full response to the browser. So the script snipped from
BrowseConsoleHandler gets generated but never sent to the browser.