Add multi item id query endpoint

Author: vekien

src/XIVAPI/Api/Market.php

@@ -9,6 +9,10 @@ class Market
 {
     public function item(int $itemId, array $servers = [], string $dc = '')
     {
+        if (empty($servers) && empty($dc)) {
+            throw new \Exception('You must provide either a list of servers or a DC name');
+        }
+
         $options = [];
 
         if ($servers) {
@@ -19,11 +23,34 @@ public function item(int $itemId, array $servers = [], string $dc = '')
             $options['dc'] = $dc;
         }
 
+        return Guzzle::get("/market/item/{$itemId}", [
+            RequestOptions::QUERY => $options
+        ]);
+    }
+
+    public function items(array $itemIds, array $servers, string $dc = '')
+    {
+        if (empty($itemIds)) {
+            throw new \Exception('You must provide a list of item ids');
+        }
+
         if (empty($servers) && empty($dc)) {
             throw new \Exception('You must provide either a list of servers or a DC name');
         }
 
-        return Guzzle::get("/market/item/{$itemId}", [
+        $options = [];
+
+        $options['ids'] = implode(',', $itemIds);
+
+        if ($servers) {
+            $options['servers'] = implode(',', $servers);
+        }
+
+        if ($dc) {
+            $options['dc'] = $dc;
+        }
+
+        return Guzzle::get("/market/items", [
             RequestOptions::QUERY => $options
         ]);
     }
@@ -35,6 +62,11 @@ public function search($elasticQuery)
         ]);
     }
 
+    public function ids()
+    {
+        return Guzzle::get("/market/ids");
+    }
+
     public function categories()
     {
         return Guzzle::get("/market/categories");