Zend Expressive Monolog integration

---

Zend Expressive implementation of Monolog (https://github.com/Seldaek/monolog/)

Installation

composer require davidburger/expressive-logger

Setup

cd <project_root>
cp vendor/davidburger/expressive-logger/config/errorlog.global.php.dist config/autoload/errorlog.global.php

• edit config/autoload/errorlog.global.php file and set what you need

Configuration directives

registerErrorHandler (default value: false)

• if enabled, the \Monolog\ErrorHandler::register() method is called after logger initialization to set php error handlers, @see http://php.net/manual/en/ref.errorfunc.php for more details

ignoredExceptionClasses (default value: [])

• Exception class names that will not be logged by defined error handlers

useIgnoreLogic (default value: false)

• false = all errors will be logged
• true = classes defined in ignoredExceptionClasses array and instances of ExpressiveLogger\Exception\NotLoggableInterface will be ignored by logger

useFacade (default value: true)

• logger will be registered for static calls - see below.

exceptionFormatterCallback (default value: null)

• callback for formatting exception message and determining context before Monolog\Logger::error($message, $context) is called
• higher priority than messageFormatter if both are defined
• config example:

'exceptionFormatterCallback' => function($exception, &$context) {

    if (true === empty($context)) {
        $context = ['exception' => $exception];
    }

    return sprintf('Exception %s: "%s" at %s line %s',
        get_class($exception),
        $exception->getMessage(),
        $exception->getFile(),
        $exception->getLine()
    );
},

messageFormatter (default value: null)

• class used for formatting error messages before Monolog\Logger::error($message) is called (very usefull for exceptions)
• lower priority than exceptionFormatterCallback if both are defined
• it is possible to write and use custom formatter implementing \ExpressiveLogger\MessageFormatter\MessageFormatterInterface
• config example:

'messageFormatter' => \ExpressiveLogger\MessageFormatter\DefaultFormatter::class

Usage

Boostrap initialization

<?php

require __DIR__ . '/vendor/autoload.php';

/** @var \Interop\Container\ContainerInterface $container */
$container = require __DIR__ . '/config/container.php';

$factory = new \ExpressiveLogger\LoggerFactory();
$logger = $factory($container);

Static calls

use ExpressiveLogger\LoggerFacade;
//..

try {

} catch(RuntimeException $e) {
   LoggerFacade::error($e);
}

Monolog handlers configuration

RedisHandler

'dependencies' => [
    'factories' => [
        \Monolog\Handler\RedisHandler::class => \ExpressiveLogger\Factory\RedisHandlerFactory::class,
    ],
],
'expressiveLogger' => [
    'handlers' => [
        'redis' => [
            'client' => 'redisClient',  //name of redis instance available via container
            'key' => 'logstash',
            'level' => Logger::DEBUG,
        ],
    ]
]