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The Spark-rest component allows to define REST endpoints using the Spark REST Java library (not to be mistaken with Apache Spark) using the Rest DSL.

Maven users will need to add the following dependency to their pom.xml for this component:

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  spark-rest://verb:path?[options]

URI Options

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Path using Spark syntax

The path option is defined using a Spark REST syntax where you define the REST context path using support for parameters and splat. See more details at the Spark Java Route documentation.

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  from("spark-rest:get:/hello/*/to/*")
    .transform().simple("Bye big ${header.splat[1]} from ${header.splat[0]}");

Rest DSL

Apache Camel provides a new Rest DSL that allow to define the REST services in a nice REST style. For example we can define a REST hello service in Java DSL as shown below:

  return new RouteBuilder() {
      @Override
      public void configure() throws Exception {
            rest("/hello/{me}").get()
                .route().transform().simple("Bye ${header.me}");
        }
    };

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  <camelContext xmlns="http://camel.apache.org/schema/spring">
    <rest uri="/hello/{me}">
      <get>
        <route>
          <transform>
            <simple>Bye ${header.me}</simple>
          </transform>
        </route>
      </get>
    </rest>
  </camelContext>

See more details at the Rest DSL.

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