In this article, you will learn how to enable rate limiting for an authenticated user with Spring Cloud Gateway. Why it is important? API gateway is an entry point to your microservices system. Therefore, you should provide there a right level of security. Rate limiting can prevent your API against DoS attacks and limit web scraping.

You can easily configure rate limiting with Spring Cloud Gateway. For a basic introduction to this feature, you may refer to my article Rate Limiting in Spring Cloud Gateway with Redis. Similarly, today we will also use Redis as a backend for a rate limiter. Moreover, we will configure an HTTP basic authentication. Of course, you can provide some more advanced authentication mechanisms like an X509 certificate or OAuth2 login. If you think about it, read my article Spring Cloud Gateway OAuth2 with Keycloak.

Source Code

If you would like to try it by yourself, you may always take a look at my source code. In order to do that you need to clone my repository sample-spring-cloud-gateway. Then you should go to the src/test/java directory, and just follow my instructions in the next sections.

#spring cloud gateway #cloud