Spring-cloude-gateway fluent java api has different manner of defining predicates
In our code we use Spring Cloud Gateway to dynamically configure routes to services using the fluent java routes API. Lets assume we want to filter on the path of an incoming request. We can implement this in two manners and my question is about the difference between the two:
@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder, ThrottleGatewayFilterFactory throttle)
return builder.routes()
.route(r ->
r.host("**.abc.org")
.and()
.path("/image/png")
.uri("http://httpbin.org:80")
)
.route(r ->
r.host("**.abc.org")
.uri("http://httpbin.org:80")
.and(ServerWebExchangeUtils.toAsyncPredicate(
new PathRoutePredicateFactory().apply(config -> config.setPattern("/images/jpeg")))
)
.build();
In the first route, we configure the path predicate by calling the
PredicateSpec.path()
.In the second example we configure the path using
Route.AsyncBuilder.and()
(Route.AsyncBuilder
is the type returned by.uri()
method).
Obviously, the first manner is more readable and easy. But I guess there is a use case for defining predicates after the uri()
method? What the difference between defining predicates before or after the call to uri()
?
spring-cloud-gateway
add a comment |
In our code we use Spring Cloud Gateway to dynamically configure routes to services using the fluent java routes API. Lets assume we want to filter on the path of an incoming request. We can implement this in two manners and my question is about the difference between the two:
@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder, ThrottleGatewayFilterFactory throttle)
return builder.routes()
.route(r ->
r.host("**.abc.org")
.and()
.path("/image/png")
.uri("http://httpbin.org:80")
)
.route(r ->
r.host("**.abc.org")
.uri("http://httpbin.org:80")
.and(ServerWebExchangeUtils.toAsyncPredicate(
new PathRoutePredicateFactory().apply(config -> config.setPattern("/images/jpeg")))
)
.build();
In the first route, we configure the path predicate by calling the
PredicateSpec.path()
.In the second example we configure the path using
Route.AsyncBuilder.and()
(Route.AsyncBuilder
is the type returned by.uri()
method).
Obviously, the first manner is more readable and easy. But I guess there is a use case for defining predicates after the uri()
method? What the difference between defining predicates before or after the call to uri()
?
spring-cloud-gateway
add a comment |
In our code we use Spring Cloud Gateway to dynamically configure routes to services using the fluent java routes API. Lets assume we want to filter on the path of an incoming request. We can implement this in two manners and my question is about the difference between the two:
@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder, ThrottleGatewayFilterFactory throttle)
return builder.routes()
.route(r ->
r.host("**.abc.org")
.and()
.path("/image/png")
.uri("http://httpbin.org:80")
)
.route(r ->
r.host("**.abc.org")
.uri("http://httpbin.org:80")
.and(ServerWebExchangeUtils.toAsyncPredicate(
new PathRoutePredicateFactory().apply(config -> config.setPattern("/images/jpeg")))
)
.build();
In the first route, we configure the path predicate by calling the
PredicateSpec.path()
.In the second example we configure the path using
Route.AsyncBuilder.and()
(Route.AsyncBuilder
is the type returned by.uri()
method).
Obviously, the first manner is more readable and easy. But I guess there is a use case for defining predicates after the uri()
method? What the difference between defining predicates before or after the call to uri()
?
spring-cloud-gateway
In our code we use Spring Cloud Gateway to dynamically configure routes to services using the fluent java routes API. Lets assume we want to filter on the path of an incoming request. We can implement this in two manners and my question is about the difference between the two:
@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder, ThrottleGatewayFilterFactory throttle)
return builder.routes()
.route(r ->
r.host("**.abc.org")
.and()
.path("/image/png")
.uri("http://httpbin.org:80")
)
.route(r ->
r.host("**.abc.org")
.uri("http://httpbin.org:80")
.and(ServerWebExchangeUtils.toAsyncPredicate(
new PathRoutePredicateFactory().apply(config -> config.setPattern("/images/jpeg")))
)
.build();
In the first route, we configure the path predicate by calling the
PredicateSpec.path()
.In the second example we configure the path using
Route.AsyncBuilder.and()
(Route.AsyncBuilder
is the type returned by.uri()
method).
Obviously, the first manner is more readable and easy. But I guess there is a use case for defining predicates after the uri()
method? What the difference between defining predicates before or after the call to uri()
?
spring-cloud-gateway
spring-cloud-gateway
asked Nov 12 at 16:02
Guidoos
12
12
add a comment |
add a comment |
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