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Mobile App

RoadRescue – Real-Time Towing App

On-demand towing with real-time driver matching

2024Full Stack Developer (Flutter + Laravel)
Tech Stack
FlutterLaravelGoogle Maps APIWebSocketFirebasePusherMySQLPHP

Project Overview

RoadRescue is an Uber-like on-demand towing application built for the roadside assistance industry. When a user's vehicle breaks down, they open the app, drop a pin, and the system instantly broadcasts their request to all available towing providers within a configurable radius. The driver app and user app are both built in Flutter, sharing a common component library for UI consistency. The backend is a Laravel REST API with real-time WebSocket communication handled by Laravel Echo and Pusher, ensuring sub-second delivery of requests to drivers. Location tracking is powered by Google Maps SDK with real-time route drawing, showing the user exactly where their driver is and the estimated arrival time. The system handles edge cases like driver cancellation (auto-reassigns to the next available driver), connection drops (WebSocket reconnection with missed event replay), and surge pricing during high demand. Additional features include: in-app chat between user and driver, ride history, driver rating system, admin dashboard for fleet management, automated invoicing via PDF generation, and SMS/push notifications via Firebase.

Challenges & Solutions

Real-time driver matching at scale was the core challenge. We implemented a geospatial query system using MySQL's spatial indexes and a pub/sub queue to ensure no two users get the same driver simultaneously. Flutter's isolates were used to keep the location tracking running even when the app is backgrounded.

Outcome & Impact

Successfully deployed with 50+ registered towing companies. Average driver response time under 3 minutes. The client reported a 60% improvement in job dispatch efficiency compared to their previous phone-based system.

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