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 '18 at 16:02
GuidoosGuidoos
12
12
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53265869%2fspring-cloude-gateway-fluent-java-api-has-different-manner-of-defining-predicate%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53265869%2fspring-cloude-gateway-fluent-java-api-has-different-manner-of-defining-predicate%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown