Spring Cloud Gateway4.1.4

This project provides a libraries for building an API Gateway on top of Spring WebFlux or Spring WebMVC. Spring Cloud Gateway aims to provide a simple, yet effective way to route to APIs and provide cross cutting concerns to them such as: security, monitoring/metrics, and resiliency.

Features

Spring Cloud Gateway features:

  • Built on Spring Framework and Spring Boot

  • Able to match routes on any request attribute.

  • Predicates and filters are specific to routes.

  • Circuit Breaker integration.

  • Spring Cloud DiscoveryClient integration

  • Easy to write Predicates and Filters

  • Request Rate Limiting

  • Path Rewriting

Getting Started

@SpringBootApplication
public class DemogatewayApplication {
	@Bean
	public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
		return builder.routes()
			.route("path_route", r -> r.path("/get")
				.uri("http://httpbin.org"))
			.route("host_route", r -> r.host("*.myhost.org")
				.uri("http://httpbin.org"))
			.route("rewrite_route", r -> r.host("*.rewrite.org")
				.filters(f -> f.rewritePath("/foo/(?<segment>.*)", "/${segment}"))
				.uri("http://httpbin.org"))
			.route("hystrix_route", r -> r.host("*.hystrix.org")
				.filters(f -> f.hystrix(c -> c.setName("slowcmd")))
				.uri("http://httpbin.org"))
			.route("hystrix_fallback_route", r -> r.host("*.hystrixfallback.org")
				.filters(f -> f.hystrix(c -> c.setName("slowcmd").setFallbackUri("forward:/hystrixfallback")))
				.uri("http://httpbin.org"))
			.route("limit_route", r -> r
				.host("*.limited.org").and().path("/anything/**")
				.filters(f -> f.requestRateLimiter(c -> c.setRateLimiter(redisRateLimiter())))
				.uri("http://httpbin.org"))
			.build();
	}
}

To run your own gateway use the spring-cloud-starter-gateway dependency.

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