How the Mobile App Decides Which Server to Connect To

Source: workshop-expo-mobile-app/screens/LoginScreen.js, api/session.api.ts

• App checks AU, US, UK servers sequentially until it finds the user's account
• User has no control over which server is selected
• If user has accounts in multiple regions, first match wins
• Server is locked after login — must log out to switch regions
• ANY network loss immediately logs user out — no offline mode

Support scenarios

• "App logged me into wrong region" → user has accounts in multiple regions
• "App keeps logging me out" → intermittent WiFi drops triggering logout
• "I lost my work" → network dropped during save, no offline cache