Meal Nexus
Subscription Meal Planning & Dietary Nutrition Management
Personalized dietary scheduling and nutrition subscription mobile platform featuring intelligent JWT lifecycle session persistence, deep-linking, and automated store deployment.
Executive Product Overview & Scope
Meal Nexus offers tailored nutritional meal plans, automated grocery checklists, and scheduled meal deliveries for health-conscious individuals. As the Flutter Developer, I resolved critical authentication session expiry bugs, stabilized complex nested navigation flows, optimized image asset caching, and managed release deployment to the Apple App Store.
Core Engineering Contributions & Technical Execution
Key Technical Features & Highlights
The Engineering Challenge
Users were constantly being kicked out to the login screen when resuming the app from the background after short periods of inactivity because expired JWT tokens were not refreshing silently. Additionally, nested navigation stacks were creating duplicate screen layers and broken back-button behavior.
The Architectural Solution
Engineered a custom `AppLifecycleObserver` lifecycle hook that compares JWT expiration timestamps against system time upon app resume, invoking a silent refresh in the background before rendering UI routes. Refactored the navigation stack with strict route guards and declarative pop validation.
Tangible Results & Measurable Impact
Reduced authentication session dropouts to 0%, completely eliminated navigation stack memory leaks, and successfully launched on the Apple App Store with 99.9% crash-free stability.