diff --git a/htdocs/product/class/api_products.class.php b/htdocs/product/class/api_products.class.php
index 81e2659d918..d5b5cb77f7a 100644
--- a/htdocs/product/class/api_products.class.php
+++ b/htdocs/product/class/api_products.class.php
@@ -59,15 +59,11 @@ class Products extends DolibarrApi
     }
 
     /**
-     * Get properties of a product object (from its ID, Ref, Ref_ext or Barcode)
+     * Get properties of a product object by id
      *
      * Return an array with product information.
-     * TODO implement getting a product by ref or by $ref_ext
      *
      * @param  int    $id               ID of product
-     * @param  string $ref              Ref of element
-     * @param  string $ref_ext          Ref ext of element
-     * @param  string $barcode          Barcode of element
      * @param  int    $includestockdata Load also information about stock (slower)
      * @return array|mixed                 Data without useless information
      *
@@ -75,32 +71,72 @@ class Products extends DolibarrApi
      * @throws 403
      * @throws 404
      */
-    public function get($id, $ref = '', $ref_ext = '', $barcode = '', $includestockdata = 0)
+    public function get($id, $includestockdata = 0)
     {
-        if (empty($id) && empty($ref) && empty($ref_ext) && empty($barcode)) {
-            throw new RestException(400, 'bad value for parameter id, ref, ref_ext or barcode');
-        }
+        return $this->_fetch($id, '', '', '', $includestockdata);
+    }
 
-        $id = (empty($id)?0:$id);
+    /**
+     * Get properties of a product object by ref
+     *
+     * Return an array with product information.
+     *
+     * @param string $ref Ref of element
+     * @param int $includestockdata Load also information about stock (slower)
+     *
+     * @return array|mixed                 Data without useless information
+     *
+     * @url GET byRef/{ref}
+     *
+     * @throws 401
+     * @throws 403
+     * @throws 404
+     */
+    public function getByRef($ref, $includestockdata = 0)
+    {
+        return $this->_fetch('', $ref, '', '', $includestockdata);
+    }
 
-        if(! DolibarrApiAccess::$user->rights->produit->lire) {
-            throw new RestException(403);
-        }
+    /**
+     * Get properties of a product object by ref_ext
+     *
+     * Return an array with product information.
+     *
+     * @param string $ref_ext Ref_ext of element
+     * @param int $includestockdata Load also information about stock (slower)
+     *
+     * @return array|mixed Data without useless information
+     *
+     * @url GET byRefExt/{ref_ext}
+     *
+     * @throws 401
+     * @throws 403
+     * @throws 404
+     */
+    public function getByRefExt($ref_ext, $includestockdata = 0)
+    {
+        return $this->_fetch('', '', $ref_ext, '', $includestockdata);
+    }
 
-        $result = $this->product->fetch($id, $ref, $ref_ext, $barcode);
-        if(! $result ) {
-            throw new RestException(404, 'Product not found');
-        }
-
-        if(! DolibarrApi::_checkAccessToResource('product', $this->product->id)) {
-            throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
-        }
-
-        if ($includestockdata) {
-               $this->product->load_stock();
-        }
-
-        return $this->_cleanObjectDatas($this->product);
+    /**
+     * Get properties of a product object by barcode
+     *
+     * Return an array with product information.
+     *
+     * @param string $barcode Barcode of element
+     * @param int $includestockdata Load also information about stock (slower)
+     *
+     * @return array|mixed Data without useless information
+     *
+     * @url GET byBarcode/{barcode}
+     *
+     * @throws 401
+     * @throws 403
+     * @throws 404
+     */
+    public function getByBarcode($barcode, $includestockdata = 0)
+    {
+        return $this->_fetch('', '', '', $barcode, $includestockdata);
     }
 
     /**
@@ -246,7 +282,7 @@ class Products extends DolibarrApi
             }
             $this->product->$field = $value;
         }
-        
+
         $updatetype = false;
         if ($this->product->type != $oldproduct->type && ($this->product->isProduct() || $this->product->isService())) {
             $updatetype = true;
@@ -696,4 +732,48 @@ class Products extends DolibarrApi
         }
         return $product;
     }
+
+    /**
+     * Get properties of a product object
+     *
+     * Return an array with product information.
+     *
+     * @param  int    $id               ID of product
+     * @param  string $ref              Ref of element
+     * @param  string $ref_ext          Ref ext of element
+     * @param  string $barcode          Barcode of element
+     * @param  int    $includestockdata Load also information about stock (slower)
+     * @return array|mixed                 Data without useless information
+     *
+     * @throws 401
+     * @throws 403
+     * @throws 404
+     */
+    private function _fetch($id, $ref = '', $ref_ext = '', $barcode = '', $includestockdata = 0)
+    {
+        if (empty($id) && empty($ref) && empty($ref_ext) && empty($barcode)) {
+            throw new RestException(400, 'bad value for parameter id, ref, ref_ext or barcode');
+        }
+
+        $id = (empty($id)?0:$id);
+
+        if(! DolibarrApiAccess::$user->rights->produit->lire) {
+            throw new RestException(403);
+        }
+
+        $result = $this->product->fetch($id, $ref, $ref_ext, $barcode);
+        if(! $result ) {
+            throw new RestException(404, 'Product not found');
+        }
+
+        if(! DolibarrApi::_checkAccessToResource('product', $this->product->id)) {
+            throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
+        }
+
+        if ($includestockdata) {
+               $this->product->load_stock();
+        }
+
+        return $this->_cleanObjectDatas($this->product);
+    }
 }