We will learn in this topic how to solve the REST API bug of Magento 1 while getting the order with Order REST API.
This bug inside the “Mage_Sales_Model_Api2_Order_Rest” class and this is abstract class so can’t override this via magento module override feature in config.xml
We can do this via use of “local” codepool of Magento.
We need to copy the “Mage_Sales_Model_Api2_Order_Rest” class into app/code/local/ folder of Magento.
Add following line into the file
Here is full source of file