added guzzle log subscriber

Author: pulkitjalan

composer.json

@@ -13,6 +13,7 @@
         "php": ">=5.4.0",
         "guzzlehttp/guzzle": "5.*",
         "guzzlehttp/retry-subscriber": "2.*",
+        "guzzlehttp/log-subscriber": "1.0.*",
         "illuminate/support": "~4|~5"
     },
     "require-dev": {

src/Requester.php

@@ -3,6 +3,8 @@
 namespace PulkitJalan\Requester;
 
 use GuzzleHttp\Client as GuzzleClient;
+use GuzzleHttp\Subscriber\Log\Formatter;
+use GuzzleHttp\Subscriber\Log\LogSubscriber;
 use GuzzleHttp\Subscriber\Retry\RetrySubscriber;
 use PulkitJalan\Requester\Exceptions\InvalidUrlException;
 
@@ -103,6 +105,23 @@ public function getGuzzleClient()
         return $guzzle;
     }
 
+    /**
+     * Add a logger to the guzzle client
+     *
+     * @param  Logger $logger PSR-3 Logger instance (monolog)
+     * @param  string $format Log output format
+     * @return void
+     */
+    public function addLogger($logger, $format)
+    {
+        if (defined(Formatter::class.'::'.$format)) {
+            $format = constant(Formatter::class.'::'.$format);
+        }
+
+        $subscriber = new LogSubscriber($logger, $format);
+        $this->guzzleClient->getEmitter()->attach($subscriber);
+    }
+
     /**
      * Set the url
      * will automatically append the protocol

src/RequesterServiceProvider.php

@@ -2,8 +2,10 @@
 
 namespace PulkitJalan\Requester;
 
-use Illuminate\Support\ServiceProvider;
+use Monolog\Logger;
+use Monolog\Handler\StreamHandler;
 use GuzzleHttp\Client as GuzzleClient;
+use Illuminate\Support\ServiceProvider;
 
 class RequesterServiceProvider extends ServiceProvider
 {
@@ -22,6 +24,16 @@ public function boot()
         $this->app[Requester::class] = function ($app) {
             return $app['requester'];
         };
+
+        if ($this->app->config->get('requester::log.enabled')) {
+            $logger = $this->app->log->getMonolog();
+
+            if (!empty($this->app->config->get('requester::log.file'))) {
+                $logger->pushHandler(new StreamHandler($this->app->config->get('requester::log.file'), Logger::INFO));
+            }
+
+            $this->app['requester']->addLogger($logger, $this->app->config->get('requester::log.format'));
+        }
     }
 
     /**

src/config/config.php

@@ -72,6 +72,47 @@
         |
         */
         'on' => [500, 502, 503, 504],
-    ]
+    ],
+
+    /*
+    |--------------------------------------------------------------------------
+    | Logging options
+    |--------------------------------------------------------------------------
+    |
+    | Log guzzle requests using the log-subscriber
+    | https://github.com/guzzle/log-subscriber
+    |
+    */
+    'log' => [
+        /*
+        |--------------------------------------------------------------------------
+        | Enable logging
+        |--------------------------------------------------------------------------
+        */
+        'enabled' => false,
+
+        /*
+        |--------------------------------------------------------------------------
+        | Logging file
+        |--------------------------------------------------------------------------
+        |
+        | Logs to Laravels default (storage_path().'/logs/laravel.log')
+        | Modify to log to a different file
+        |
+        */
+        'file' => '',
+
+        /*
+        |--------------------------------------------------------------------------
+        | Logging format
+        |--------------------------------------------------------------------------
+        |
+        | The Log Subscriber currently supports [CLF, DEBUG, SHORT]
+        | See https://github.com/guzzle/log-subscriber/blob/master/src/Formatter.php
+        | Can also set a custom format
+        |
+        */
+        'format' => 'CLF',
+    ],
 
 ];