Add all of the potential transformers that might be needed for now.

app/Transformers/Admin/AllocationTransformer.php

@@ -30,12 +30,55 @@ use League\Fractal\TransformerAbstract;
 class AllocationTransformer extends TransformerAbstract
 {
     /**
-     * Return a generic transformed server array.
+     * The filter to be applied to this transformer.
+     *
+     * @var bool|string
+     */
+    protected $filter;
+
+    /**
+     * Transformer constructor.
+     *
+     * @param  bool|string  $filter
+     * @return void
+     */
+    public function __construct($filter = false)
+    {
+        $this->filter = $filter;
+    }
+
+    /**
+     * Return a generic transformed allocation array.
      *
      * @return array
      */
     public function transform(Allocation $allocation)
     {
+        return $this->transformWithFilter($allocation);
+    }
+
+    /**
+     * Determine which transformer filter to apply.
+     *
+     * @return array
+     */
+    protected function transformWithFilter(Allocation $allocation)
+    {
+        if ($this->filter === 'server') {
+            return $this->transformForServer($allocation);
+        }
+
         return $allocation->toArray();
     }
+
+    /**
+     * Transform the allocation to only return information not duplicated
+     * in the server response (discard node_id and server_id).
+     *
+     * @return array
+     */
+    protected function transformForServer(Allocation $allocation)
+    {
+        return collect($allocation)->only('id', 'ip', 'ip_alias', 'port')->toArray();
+    }
 }