Integrated Fuel Management and On-Demand Delivery Platform with Real time Geospatial Dispatch

This paper describes the development, implementation, and validation of a Fuel Management System, particularly one that is production-oriented, integrating doorstep fuel ordering, secure agent operations, real-time tracking, inventory management, payment verification, support operations, and more, under a single umbrella of a digital stack. Unlike the traditional, fragmented implementation of fuel ordering and delivery operations, where fuel telemetry and customer-facing operations are handled separately, the proposed system integrates role-based access control, agent operations, OTP-based handover validation, WebSocket-based operational visibility, analytics, and more, for the personas of customers, agents, and administrators. The existing codebase has a total of 67 Java classes, 16 controller modules, 7 service modules, and a total of 13,142 lines of code for the full- stack implementation. An end-to-end validation was performed against the live API surface, where the workflow calls were successfully made, with a total of 14/14 workflow calls, a median API latency of 160.95 ms, and a total order closure from placement to delivery confirmation. The backend startup profile has a deterministic readiness, validating the practical applicability of the proposed system to medium-scale urban logistics operations. The study also discusses the observed trade-offs, security controls, and system-level limitations, and provides implementation-grounded guidance for extending the architecture to larger coverage zones and stricter compliance environments.