firebase-remote-config

# Firebase Remote Config Skill This skill defines how to correctly use Firebase Remote Config in Flutter applications. ## When to Use Use this skill when: * Implementing feature flags or remote configuration without deploying app updates. * Managing parameter defaults and fetching remote values. * Implementing real-time config updates for instant changes. * Setting up A/B testing or conditional targeting for user segments. --- ## 1. Setup and Configuration ``` flutter pub add firebase_remote_config flutter pub add firebase_analytics # required for conditional targeting of app instances ``` ```dart import 'package:firebase_remote_config/firebase_remote_config.dart'; final remoteConfig = FirebaseRemoteConfig.instance; ``` - Enable **Google Analytics** in the Firebase project for user property and audience targeting. - Ensure the **Remote Config REST API** is not disabled — the SDK depends on it. - For **macOS**, enable Keychain Sharing in Xcode. **Configure settings:** ```dart await remoteConfig.setConfigSettings(RemoteConfigSettings( fetchTimeout: const Duration(minutes: 1), minimumFetchInterval: const Duration(hours: 1), )); ``` --- ## 2. Parameter Management **Set in-app defaults** (ensures the app behaves as intended before connecting to the backend): ```dart await remoteConfig.setDefaults(const { "feature_new_onboarding": false, "max_retry_attempts": 3, "welcome_message": "Hello, world!", "promo_discount_pct": 0.0, }); ``` **Read values with t...