seniorFlutter
How do you manage multi-environment configurations (Dev/Staging/Prod)?
Updated Apr 28, 2026
Short answer
By using Dart entry points (flavors) or environment variables via the --dart-define flag.
Deep explanation
Instead of hardcoding API keys, use String.fromEnvironment. Pass definitions during build: flutter run --dart-define=ENV=dev. Alternatively, setup Native Flavors (Android Product Flavors, iOS Schemes) combined with different main_dev.dart and main_prod.dart files to completely isolate resources and app bundles.
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