Production-ready templates for calling third-party APIs from Flutterwithout exposing secrets or maintaining a custom backend.
Flutter safe & unsafe practicesA Stripe secret key passed with dart-define or kept in Dart source is compiled into the APK or IPA and can be extracted. Ship only a RealComposer client token in the Flutter app. The edge pipeline injects STRIPE_SECRET_KEY and returns plan and status fields for your billing screen.
OpenAI keys bundled in Flutter apps through env files, assets, or dart-define are extractable from release builds. Route chat requests through a RealComposer pipeline that injects OPENAI_API_KEY at the edge, applies per-client rate limits, and returns only the reply text to the app.
Airtable returns each row wrapped in records, fields, and metadata, and Flutter decodes all of it on the UI isolate. A RealComposer pipeline injects the Airtable token, asks Airtable for only the columns your ListView renders, and returns just the records array for your Dart model classes.