Exposing Rest endpoint

[shyabithd]

Description:

I tried to create a rest endpoint using camel-k however when DSL is deployed I got following error.
Should Camel-k download dependent components?

[2] Exception in thread "main" org.apache.camel.FailedToCreateRouteException: Failed to create route route1: Route(route1)[[From[rest:get:/hello?routeId=route1]] -> [To[... because of Cannot find RestConsumerFactory in Registry or as a Component to use
[2] at org.apache.camel.impl.RouteService.warmUp(RouteService.java:147)
[2] at org.apache.camel.impl.DefaultCamelContext.doWarmUpRoutes(DefaultCamelContext.java:3949)
[2] at org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:3856)
[2] at org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:3642)
[2] at org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3494)
[2] at org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:209)
[2] at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3253)
[2] at org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3249)
[2] at org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:3272)
[2] at org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:3249)
[2] at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
[2] at org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:3165)
[2] at org.apache.camel.k.jvm.Runtime.doStart(Runtime.java:101)
[2] at org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
[2] at org.apache.camel.main.MainSupport.run(MainSupport.java:170)
[2] at org.apache.camel.k.jvm.Application.main(Application.java:65)
[2] Caused by: java.lang.IllegalStateException: Cannot find RestConsumerFactory in Registry or as a Component to use
[2] at org.apache.camel.component.rest.RestEndpoint.createConsumer(RestEndpoint.java:526)
[2] at org.apache.camel.impl.EventDrivenConsumerRoute.addServices(EventDrivenConsumerRoute.java:69)
[2] at org.apache.camel.impl.DefaultRoute.onStartingServices(DefaultRoute.java:107)
[2] at org.apache.camel.impl.RouteService.doWarmUp(RouteService.java:172)
[2] at org.apache.camel.impl.RouteService.warmUp(RouteService.java:145)

[lburgazzoli]

Can you post the full route ?

[zregvart]

I think there could be a missing RestConsumerFactory implementation from one of the supporting components:

https://github.com/apache/camel/blob/85954bfb0ec7e2c26f5cc467d9b7c60195e8f4c6/camel-core/src/main/java/org/apache/camel/component/rest/RestEndpoint.java#L52

Could Camel-K be aware of this and add additional component to classpath?

[lburgazzoli]

yes camel-k can do that :) we need to check the route to see if there are missing cases.

[shyabithd]

Hi @lburgazzoli,

Thank you for the quick response.
This is just to get an idea how things work. Here is the route file.

import org.apache.camel.LoggingLevel;
import org.apache.camel.builder.RouteBuilder;

public class RestTest extends RouteBuilder {
@OverRide
public void configure() throws Exception {
restConfiguration().component("restlet").host("localhost").port("8080");
rest().get("/hello").to("direct:hello");
from("direct:hello").log(LoggingLevel.INFO, "Hello World").transform().simple("Hello World");
}
}

[lburgazzoli]

will have a look, in the meantime you can try to add the restlet dependency like:

kamel run -d camel:restlet ...

[nicolaferraro]

Yeah, I think current metadata discovery works with explicit uris (e.g. "undertow:http..."), we should make it more intelligent..

[shyabithd]

@lburgazzoli - Sorry for the confusion. Still the exception exists after trying with the restlet dependency

[lburgazzoli]

sorry my mistake:

kamel run --dependency=camel-restlet ...

[shyabithd]

Hi @lburgazzoli - Another small question, After I deploy the DSL, I noticed that ingress does not create. Have you noticed an issue like that?

[nicolaferraro]

We're about to release v 0.0.5 that contains the generator for ingress.

[lburgazzoli]

@nicolaferraro I think we can close this one, right ?

[nicolaferraro]

Yes