Summary

This chapter explored the fundamental security concepts of authentication, authorization, and their role in securing microservices. We clarified the importance of verifying user identities (authentication) and determining access permissions (authorization) for robust system protection.

To achieve this, we implemented a dedicated microservice for issuing access tokens (JWTs) and refresh tokens. JWTs grant temporary access, while refresh tokens allow users to obtain new access tokens without re-entering credentials. A practical demonstration showcased how this microservice interacts with another microservice, the account microservice.

In our next chapter, we will explore the monitoring of microservices and its significance in microservice architectures. We will implement logging functionality within the account microservice and integrate it with the Elasticsearch, Logstash, and Kibana (ELK) stack. This will establish a centralized logging system, enabling efficient log...