Modern microservice architectures consist of many independently deployable services, which brings new security challenges. One crucial best practice is to use an API Gateway as a centralized entry point to enforce security policies. In this article, we explore how to implement a secure API gateway in a microservices environment and demonstrate authentication configuration with code examples.
Why Use an API Gateway for Microservices Security
In a microservices architecture, each service exposes its own REST endpoints. Without a gateway, clients would have to authenticate individually with each service, a complex and error-prone approach. An API Gateway acts as a single entry point for all client requests, simplifying communication and centralizing cross-cutting concerns like security.
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