Exposing Rest API with Apache Camel - getting 404 - apache-camel

Question

I tried very simple Route:
restConfiguration()
.component("servlet");
rest().get("/hello")
.to("direct:hello");
from("direct:hello")
.log(LoggingLevel.INFO, "Hello World")
.transform().simple("Hello World");
And indeed, when lunching my spring boot application I can see that the route listens to it:
[enter image description here][1]
2021-04-14 15:03:31.759 INFO 25248 --- [ main] o.a.c.i.e.InternalRouteStartupManager : Route: route1 started and consuming from: direct://hello
2021-04-14 15:03:31.760 INFO 25248 --- [ main] o.a.c.i.e.InternalRouteStartupManager : Route: route2 started and consuming from: servlet:/hello
2021-04-14 15:03:31.768 INFO 25248 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Total 2 routes, of which 2 are started
2021-04-14 15:03:31.768 INFO 25248 --- [ main] o.a.c.impl.engine.AbstractCamelContext : Apache Camel 3.7.1 (camel-1) started in 220ms
However, when I tried reaching this address, I get 404 error.
{
"timestamp": "2021-04-14T12:17:11.975+00:00",
"status": 404,
"error": "Not Found",
"message": "",
"path": "/hello"
}
and also in my console:
2021-04-14 15:17:11.973 WARN 25248 --- [nio-8080-exec-4] o.s.web.servlet.PageNotFound : No mapping for GET /hello
Any idea how to solve it?
I would say here that I googled this issue and solution like using "camel.component.servlet.mapping.context-path=/*
" or using "camel" prefix didn't work for me.
Thanks!

Answer 1

create a bean like that any configuration class
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
#Bean
public ServletRegistrationBean camelServletRegistrationBean() {
ServletRegistrationBean registration = new ServletRegistrationBean(new CamelHttpTransportServlet(), "/*");
registration.setName("CamelServlet");
return registration;
}}
for example camel rest and spring boot : https://github.com/erayerdem/camelrest