What experience do you have with API gateways and their configuration?

API gateways are used to manage, route, and secure API requests in distributed systems. In my experience with Java, I have configured API gateways for microservices using tools like Spring Cloud Gateway and Kong.

Main tasks I addressed with API gateways:

• Authentication and authorization of requests (e.g., via JWT).
• Rate limiting.
• Routing requests to the appropriate microservices.
• Logging and traffic monitoring.

Example of configuring a simple route in Spring Cloud Gateway:

@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
    return builder.routes()
        .route("path_route", r -> r.path("/api/service/**")
            .uri("http://localhost:8081"))
        .build();
}

This approach allows centralized management of access and behavior of APIs, simplifying system maintenance and scaling.