📄️ Integrating an app with POSfix
Your app, installed on the same Android terminal, issues fiscal receipts and takes card payments through POSfix, without opening its screen
📄️ Command reference
The request and response format, the list of commands, the idempotency key and the error codes of the POSfix integration on Android
📄️ Card payment, events and failures
What the customer sees during a card payment, how you follow the stages of a sale, how you stop it and how you recover after a failure