Σχεδίαση και υλοποίηση ολοκληρωμένης εφαρμογής ηλεκτρονικού εμπορίου βασισμένης σε αρχιτεκτονική μικροϋπηρεσιών

Κίννας, Κωνσταντίνος

Design and implementation of an integrated e-commerce application based on microservices architecture

Bachelor Dissertation

Author

Κίννας, Κωνσταντίνος

Date

2026-07

Abstract

This thesis presents the design and implementation of a full-featured e-commerce management application (EshopApp), with the primary goal of practically exploring the microservices architecture. The project was developed as part of a personal progression through software architectural styles, building on prior experience with monolithic and N-tier approaches. The system was built using ASP.NET Core and consists of four independent microservices (auth, data, email and transaction), an API Gateway serving as the central orchestration point, and an MVCbased frontend application. The system provides complete e-commerce functionality, covering product management, orders, users, discounts, payments, and email communication. External authentication via OAuth2, payment processing via the Stripe API, and a dynamic claims-based role and permission authorization system were all implemented. Particular emphasis was placed on backend reusability and clear separation of business concerns, with several microservices having been reused with minimal modification in other projects. Backend code quality was verified through extensive integration tests across all services, complemented by targeted end-to-end tests covering critical authentication flows. The thesis concludes with a critical evaluation of the microservices architecture, highlighting its strengths in terms of service independence and reusability, while also documenting the practical challenges arising from the absence of a message queuing system, the lack of distributed transaction rollback mechanisms, and the increased operational complexity compared to simpler architectural approaches.

Department

Σχολή Τεχνολογιών Πληροφορικής και Επικοινωνιών. Τμήμα Πληροφορικής

Number of pages

134

Language

Greek

URI

https://dione.lib.unipi.gr/xmlui/handle/unipi/19696

Collections

Τμήμα Πληροφορικής

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Except where otherwise noted, this item's license is described as
Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα