Since it took me a little while to figure out how to do this I figured I would pass on what I learned. My goal was to make a single request to the Magento’s REST API to return orders with specific order statuses. Looking through the GET filters documentation page wasn’t really helpful until I saw the very last line. Here is the request that I came up with that worked:
The above request will get you a list of all orders with a status of “pending” or “processing”.