The FoodMasterAPI is only accessible via HTTPS. By using the login call, you can get the cookie needed the get access to all other calls. You do not need to get a new cookie for each call. You only need a new cookie of your current cookie expires.
The endpoint for this call will be send to you by email once you have been identified as the authorized company for handling the FoodMasterAPI communication for a specific company.
POST to login endpoint.