Laravel MonoLog, pushProcessor not Logging Addition attributes - php

Question

I want to be able to add a unique id (Uid) to my logging.
In Example 1: Which is depended on config/logging.php and ProcessorTap files below is not working as expected. The logging is configured to use stdout which refers to the ProcessorTap class that is suppose to add a Uid, when the log statement is created (in accordance with UidProcessor)
Example 2: Which uses purely Mono classes works as expected.
Why isnt Example 1 adding the Uid to the logs, when laravel ("laravel/framework": "5.7.*") should be using Monolog classes as well ?
Example 1: When this api is invoked, the output for Log::info('test') does not include UiD
Route::get('/test', function () {
Log::info('test'); //output = [2020-03-24 04:51:16] local.INFO: test
});
config/logging.php:
'default' => env('LOG_CHANNEL', 'stdout'), //.env LOG_CHANNEL=stdout
'stdout' => [
'driver' => 'monolog',
'handler' => StreamHandler::class,
'with' => [
'stream' => 'php://stdout',
],
'tap' => [
ProcessorTap::class,
],
]
ProcessorTap:
use Monolog\Processor\UidProcessor;
class ProcessorTap
{
/**
* Customize the given logger instance.
*
* #param \Illuminate\Log\Logger $logger
* #return void
*/
public function __invoke($logger)
{
$logger->pushProcessor(new UidProcessor());
}
}
Example 2: Working correctly the Uid (a484a6729e14996c0af1)
is added to the log for $logger->info('test')
use Monolog\Logger;
use Monolog\Processor\UidProcessor;
Route::get('/test', function () {
$logger = new Logger('main');
$logger->pushProcessor(new UidProcessor(20));
$logger->info('test'); // output = [2020-03-24 04:57:26] main.INFO: test [] {"uid":"a484a6729e14996c0af1"}
});

Answer 1

This might be a laravel (5.7)/mono version specific issue, but I was able to resolve the via iterating via the handlers and calling pushProcessor
use Monolog\Processor\UidProcessor;
class ProcessorTap
{
/**
* Customize the given logger instance.
*
* #param \Illuminate\Log\Logger $logger
* #return void
*/
public function __invoke($logger)
{
collect($logger->getHandlers())->each(function ($handler) {
$handler->pushProcessor(new UidProcessor());
});
}
}