Migration of a Monolithic Application to Microservices: a Performance Evaluation in Distributed Environments
DOI:
https://doi.org/10.5753/reic.2026.7249Keywords:
Monolithic System, Microservices Architecture, Architectural Reengineering, Performance EvaluationAbstract
This article presents the architectural reengineering of a ticket sales system, originally developed under a monolithic architecture, into a microservices-based architecture. The existing system, built with Next.js, was proactively restructured to ensure scalability and high performance in anticipation of future growth in the volume of simultaneous accesses and transactions. The new architecture distributes functionalities such as user management, event catalog, and payment processing into independent services developed in Go and C# .NET. Communication between services is orchestrated by an API Gateway using Hive Gateway, while asynchronous communication for critical flows, such as payment processing, is performed via RabbitMQ. The main objective is to compare the performance of the two architectures using metrics such as response time and number of requests per second (throughput) to validate the benefits of the microservices approach as a strategy for the sustainable system growth. The results indicate that the new distributed architecture achieves better average response time and higher throughput in three of the five evaluated scenarios.
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