Logger for Slim Framework 3

File log writter for Slim framework. Logger works well as class library (inject) or middleware for Slim framework 3 application. Logger created from Slim-Logger and inspired by Gin's log

Install

You can install Logger via composer.

$ composer require silalahi/slim-logger --dev dev-master

Requires Slim Framework 3 and PHP 5.5.0 or newer. Visit Logger repository at Packagist.

Usage

Class Library

To use Logger as class library, you can simply inject Logger instance into Slim container.

<?php

require "vendor/autoload.php";

// Don't forget to set timezone
date_default_timezone_set("Asia/Jakarta");

$container = new \Slim\Container();

// Adding logger to Slim container
$container['logger'] = function($c) {
  return new Silalahi\Slim\Logger();
};

$app = new \Slim\App($container);

$app->get('/', function ($request, $response, $args) {

  // Info level log
  $this->logger->write("This message from logger class library", Silalahi\Slim\Logger::INFO);
  // Critical level log
  $this->logger->write("This is critical error log", Silalahi\Slim\Logger::CRITICAL);
  // Debug level log as default
  $this->logger->write("Default log was debug, if you not specified second argument.");

  return $response->write("Hello, world!");
});


$app->run();

The code above will create a log file similar like this:

[INFO] 2015-12-21T01:21:57+07:00 This message from logger class library
[CRITICAL] 2015-12-21T01:22:39+07:00 This is critical error log
[DEBUG] 2015-12-21T01:23:19+07:00 Default log was debug, if you not specified second argument.

Middleware

Logger works as Slim middleware. You can use Logger to log request information such as response status code, latency (in seconds), client IP address, request method and request path:

<?php

require "vendor/autoload.php";

date_default_timezone_set("Asia/Jakarta");

$app = new \Slim\App;

// Adding middleware to Slim App
$app->add(new Silalahi\Slim\Logger());

$app->get('/', function ($request, $response, $args) {
  return $response->write("Hello, World!");
});

$app->run();

The code above will create a log file similar like this:

[INFO] 2015-12-21T01:30:58+07:00 |200|0.003357 sec|::1|GET /
[INFO] 2015-12-21T01:31:04+07:00 |200|0.001672 sec|::1|GET /
[INFO] 2015-12-21T01:58:32+07:00 |404|0.001519 sec|::1|GET page-not-found

Settings

Available setting for Logger are:

path:
(string) The relative or absolute filesystem path to a writable directory.

name:
(string) The log file name (Prefix file name).

name_format:
(string) The log file name format; parsed with `date()`.

extension:
(string) The file extention to append to the filename`.

message_format:
(string) The log message format; available tokens are...
    %label%      Replaced with the log message level (e.g. FATAL, ERROR, WARN).
    %date%       Replaced with a ISO8601 date string for current timezone.
    %message%    Replaced with the log message, coerced to a string.

Example settings:

$container['logger'] = function($c) {
  return new Silalahi\Slim\Logger(
    [
      'path' => '.',
      'name' => 'app_logger_',
      'name_format' => 'Y-m-d',
      'extension' => '.txt',
      'message_format' => '[%label%] %date% %message%'
    ]
  );
};