Combined Global Filter and GatewayFilter
Ordering
When a request matches a route, the filtering web handler adds all instances of GlobalFilter
and all route-specific instances of GatewayFilter
to a filter chain.
This combined filter chain is sorted by the org.springframework.core.Ordered
interface, which you can set by implementing the getOrder()
method.
As Spring Cloud Gateway distinguishes between “pre” and “post” phases for filter logic execution (see How it Works), the filter with the highest precedence is the first in the “pre”-phase and the last in the “post”-phase.
The following listing configures a filter chain:
Example 1. ExampleConfiguration.java
@Bean
public GlobalFilter customFilter() {
return new CustomGlobalFilter();
}
public class CustomGlobalFilter implements GlobalFilter, Ordered {
@Override
public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
log.info("custom global filter");
return chain.filter(exchange);
}
@Override
public int getOrder() {
return -1;
}
}