CampusXChange: A Django-Based Smart Student Marketplace Platform for Campus-Specific Peer-to-Peer Commerce

Abstract: The proliferation of digital technology has transformed how students interact and conduct transactions within academic communities. General-purpose classified platforms such as OLX, Quikr, and Facebook Marketplace, while widely adopted, fail to provide the trust mechanisms, campus-level proximity filtering, and student-centric workflows necessary for safe intra-college commerce. This paper presents CampusXChange, a full-stack web application that addresses these gaps by offering a closed, verified digital marketplace exclusively for college students. The system is developed using Django 4.x as the backend framework with a Model-View-Template (MVT) architectural pattern, HTML5/CSS3/JavaScript and Bootstrap 5 for the responsive frontend, and SQLite (development) or PostgreSQL (production) as the relational data store accessed via Django's Object-Relational Mapping (ORM) layer. The platform provides secure user authentication restricted to registered students, category-based product listing and discovery, keyword search with advanced filtering, in-platform buyer–seller messaging, a cart and checkout module, and a comprehensive administrative dashboard. Functional testing confirms that all primary modules perform as intended across desktop and mobile environments. The expected impact includes reduced student expenditure on academic essentials, minimized material waste through peer-to-peer reuse, and a strengthened sense of community within the campus ecosystem. This paper details the motivation, architecture, algorithmic design, implementation, and test results of CampusXChange, demonstrating its viability as a deployable academic marketplace solution.

Keywords: Django, Student Marketplace, Campus Commerce, Peer-to-Peer Platform, Web Application, MVT Architecture, ORM, Student Authentication