Merge pull request #11 from RRStoyanov/master

Collect response headers and method to check current limit

src/Shopify.php

@@ -353,4 +353,19 @@ public function __call($name, $args = null)
         else return $this->{$currAction}($endpoint, $params);
     }
 
+    /**
+     * @return \BNMetrics\Shopify\ShopifyAuth
+     */
+    public function getShopifyAuth(): \BNMetrics\Shopify\ShopifyAuth
+    {
+        return $this->shopifyAuth;
+    }
+
+    /**
+     * @param \BNMetrics\Shopify\ShopifyAuth $shopifyAuth
+     */
+    public function setShopifyAuth(\BNMetrics\Shopify\ShopifyAuth $shopifyAuth): void
+    {
+        $this->shopifyAuth = $shopifyAuth;
+    }
 }

src/ShopifyAuth.php

@@ -17,6 +17,8 @@ class ShopifyAuth extends AbstractProvider
 
     protected $requestPath;
 
+    protected $responseHeaders;
+
     /**
      * Set the myshopify domain URL for the API request.
      * eg. example.myshopify.com
@@ -86,6 +88,8 @@ protected function getUserByToken($token)
 
         $user = json_decode($response->getBody(), true);
 
+        $this->responseHeaders = $response->getHeaders();
+
         return $user['shop'];
     }
 
@@ -106,6 +110,19 @@ protected function mapUserToObject(array $user)
         ]);
     }
 
+    /**
+     * Return current shopify api limit - 1 is lower
+     *
+     * @return int
+     */
+    public function checkCurrentApiLimit(): int
+    {
+        $limit = $this->responseHeaders['X-Shopify-Shop-Api-Call-Limit'] ??
+                 $this->responseHeaders['HTTP_X_SHOPIFY_SHOP_API_CALL_LIMIT'] ?? ['1/40'];
+
+        return (int)explode('/', $limit[0])[0];
+    }
+
 
     /**
      * this method is for when you need to make an embedded shopify app