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Spring Boot and ServiceCall EIP Example

This example show how to use Camel with ServiceCall EIP with spring-boot and consul.

This example includes two maven modules:

  • services that exposes a number of services

  • consumer that consumes services

Configuration

The consumer is configured in the src/main/resources/application.properties in which we blacklist some services for being discovered and we add some additional services not managed by consul

# Configure service filter
camel.cloud.service-filter.blacklist[service-1] = localhost:9012
# Configure additional services
camel.cloud.service-discovery.services[service-2] = localhost:9021,localhost:9022,localhost:9023

Build

You can build this example using

mvn compile

Run the example

Using multiple shells:

  • start consul:

    $ cd services
$ src/main/bash/consul-run-linux.sh      (for linux)
$ src/main/bash/consul-run-osx.sh        (for mac osx)

  • start the service-1 service group:

    $ cd services
$ mvn spring-boot:run -Dspring-boot.run.profiles=service-1

  • start the service-2 service group:

    $ cd services
$ mvn spring-boot:run -Dspring-boot.run.profiles=service-2

  • start the consumer

    $ cd consumer
$ mvn spring-boot:run

Test the example:

In a new shell:

$ curl localhost:8080/camel/serviceCall/service1
Hi!, I'm service-1 on camel-1/route1
$ curl localhost:8080/camel/serviceCall/service2
Hi!, I'm service-1 on camel-1/route2

If you keep calling the http endpoint you’ll notice they are consumed using a round robin policy and that one of the services registered in consul is not taken into account according to the blacklist.

Web console

You can open the Consul web console

http://localhost:8500/ui

Where you can find information about the services and its state.

Help and contributions

If you hit any problem using Camel or have some feedback, then please let us know.

We also love contributors, so get involved :-)

The Camel riders!