Added ability to provide default options to SparkPost API (#8)

Author: bbredewold

src/SparkpostServiceProvider.php

@@ -41,15 +41,16 @@ public function register()
             $manager->extend('sparkpost', function() {
 
                 $config = $this->app['config']->get('services.sparkpost', []);
-                $options = isset($config['guzzle']) ? $config['guzzle'] : [];
-                $client = new Client($options);
+                $sparkpostOptions = isset($config['options']) ? $config['options'] : [];
+                $guzzleOptions = isset($config['guzzle']) ? $config['guzzle'] : [];
+                $client = new Client($guzzleOptions);
 
                 if(class_exists(AbstractTransport::class)) {
-                    return new SparkPostTransport($client, $config['secret']);
+                    return new SparkPostTransport($client, $config['secret'], $sparkpostOptions);
                 }
 
                 // Fallback to implementation which only depends on Swift_Transport
-                return new SparkPostTransportFiveZero($client, $config['secret']);
+                return new SparkPostTransportFiveZero($client, $config['secret'], $sparkpostOptions);
             });
 
             return $manager;

src/Transport/SparkPostTransportTrait.php

@@ -5,7 +5,7 @@
 use Swift_Mime_Message;
 use GuzzleHttp\ClientInterface;
 
-trait SparkPostTransportTrait 
+trait SparkPostTransportTrait
 {
     /**
      * Guzzle client instance.
@@ -26,11 +26,13 @@ trait SparkPostTransportTrait
      *
      * @param  ClientInterface $client
      * @param  string $key
+     * @param  array $options
      */
-    public function __construct(ClientInterface $client, $key)
+    public function __construct(ClientInterface $client, $key, $options = [])
     {
         $this->client = $client;
         $this->key = $key;
+        $this->options = $options;
     }
 
     /**
@@ -56,6 +58,10 @@ public function send(Swift_Mime_Message $message, &$failedRecipients = null)
             ],
         ];
 
+        if ($this->options) {
+            $options['json']['options'] = $this->options;
+        }
+
         return $this->client->post('https://api.sparkpost.com/api/v1/transmissions', $options);
     }
 
@@ -70,7 +76,6 @@ public function send(Swift_Mime_Message $message, &$failedRecipients = null)
     protected function getRecipients(Swift_Mime_Message $message)
     {
         $to = [];
-
         if ($getTo = $message->getTo()) {
             $to = array_merge($to, array_keys($getTo));
         }
@@ -110,4 +115,4 @@ public function setKey($key)
     {
         return $this->key = $key;
     }
-}
+}