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new 511de4b5402 doc: update rest-dsl about inlining routes and reusing
direct routes from other and how to do that.
511de4b5402 is described below
commit 511de4b5402b2de7733dfad9b70c4e568eed0e35
Author: Claus Ibsen <[email protected]>
AuthorDate: Tue Apr 22 09:19:44 2025 +0200
doc: update rest-dsl about inlining routes and reusing direct routes from
other and how to do that.
---
docs/user-manual/modules/ROOT/pages/rest-dsl.adoc | 44 ++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)
diff --git a/docs/user-manual/modules/ROOT/pages/rest-dsl.adoc
b/docs/user-manual/modules/ROOT/pages/rest-dsl.adoc
index 0fcff8b2fbf..de9c7d4fa1e 100644
--- a/docs/user-manual/modules/ROOT/pages/rest-dsl.adoc
+++ b/docs/user-manual/modules/ROOT/pages/rest-dsl.adoc
@@ -24,7 +24,7 @@ The following Camel components support the Rest DSL:
* xref:components::rest-component.adoc[camel-rest] *required* contains the
base rest component needed by Rest DSL
* xref:components::netty-http-component.adoc[camel-netty-http]
* xref:components::jetty-component.adoc[camel-jetty]
-* xref:components::platform-http-component.adoc[camel-platform-http]
+* xref:components::platform-http-component.adoc[camel-platform-http]
(recommended)
* xref:components::servlet-component.adoc[camel-servlet]
* xref:components::undertow-component.adoc[camel-undertow]
@@ -199,6 +199,11 @@ if you have many rest services.
When you use `direct` endpoints then you can enable Rest DSL to automatically
_inline_ the direct
route in the rest route, meaning that there is only one route per rest service.
+WARNING: When using inline-routes, then each REST endpoint should link 1:1 to
a unique `direct` endpoint.
+The linked _direct_ routes are inlined and therefore does not **exists** as
independent routes, and
+they cannot be called from other regular Camel routes. In other words the
inlined routes are essentially
+moved inside the rest-dsl and does not exist as a route. See more detils
further below.
+
To do this you *MUST* use `direct` endpoints, and each endpoint must be unique
name per service.
And the option `inlineRoutes` must be enabled.
@@ -241,6 +246,43 @@ If you use Camel Main, Camel Spring Boot, Camel Quarkus or
Camel JBang, you can
camel.rest.inline-routes = true
----
+Notice the REST services above each use a unique 1:1 linked direct endpoint
(direct:customerDetail, direct:customerOrders direct:customerNewOrder).
+This means that you cannot call these routes from another route such as the
following would not function:
+
+[source,java]
+----
+from("kafka:new-order")
+ .to("direct:customerNewOrder");
+----
+
+So if you desire to call common routes from both Rest DSL and other regular
Camel routes
+then keep these in separate routes as shown:
+
+
+[source,java]
+----
+restConfiguration().inlineRoutes(true);
+
+rest("/customers/")
+ .get("/{id}").to("direct:customerDetail")
+ .get("/{id}/orders").to("direct:customerOrders")
+ .post("/neworder").to("direct:customerNewOrder");
+
+from("direct:customerNewOrder")
+ // do some stuff here
+ .to("direct:commonCustomerNewOrder"); // call common route
+
+from("direct:commonCustomerNewOrder")
+ // do stuff here
+ .log("Created new order");
+
+from("kafka:new-order")
+ .to("direct:commonCustomerNewOrder"); // make sure to call the common route
+----
+
+Notice how the common shared route is separated into the route
`direct:commonCustomerNewOrder`.
+Which can be called from both Rest DSL and regular Camel routes.
+
== Disabling REST services
While developing REST services using Rest DSL, you may want to temporary
disabled some REST endpoints,
