A Secure Microservices Reference Architecture for Financial Cloud Systems Using Spring Boot and Event-Driven Design

Abstract

The rising tendency of using cloud computing in the finance sector has increased the requirement for architectures that provide the advantages of high scalability and security compliance. Monolithic systems are no longer sufficient in satisfying the dynamic demands of modern finance applications, particularly in the processing of transactions in real-time and the security of sensitive information. Microservices architecture in combination with event-driven approaches has been identified as a promising solution in resolving the problems associated with the above issues. However, the existing approaches often fail to provide a unified framework in the context of security as a vital architectural component. This study introduces a secure reference architecture for microservices in financial cloud environments, developed using Spring Boot and incorporating event-driven design principles. The developed architecture includes all necessary components, such as API gateways, domain-driven microservices, event streaming platforms, and a comprehensive security component that is based on zero-trust concepts. It focuses on secure communication, identity-based access control, and data protection for all layers of the developed framework. The event-driven design concept facilitates real-time processing and loose coupling of microservices, thus improving responsiveness and fault tolerance. This framework is a significant development in financial environments and provides a foundation for further advancements in cloud-based financial systems.