Spring Boot Camel SOAP to REST bridge QuickStart

This example demonstrates how to use Camel’s REST DSL to expose a backend SOAP API. It is built as a simple bank service where you can deposit money and ask for current account balance.

To deposit a 100 USD, use the following command

curl -X POST -H "content-type:text/plain" --data "-100" http://localhost:8080/rest/bank-account

To check how much do you have on your account, use

curl -X GET -H "accept:text/plain" http://localhost:8080/rest/bank-account

Note that the web service implementation is running as a SOAP-based service on http://localhost:9090 and the commands above utilize the REST bridge.

Mainly purpose of this quickstart

A simple camel route can bridge REST invocation to legacy SOAP service.

This example relies on the OpenShift Maven plugin for its build configuration and uses the fabric8 Java base image.

The application utilizes the Spring @ImportResource annotation to load a Camel Context definition via a src/main/resources/spring/camel-context.xml file on the classpath.

Important

This quickstart can run in 2 modes: standalone on your machine and on Kubernetes / OpenShift Cluster. Quickstart requires Java 8 or Java 11 (fuse-java-openshift-jdk11-rhel8 image is used to build in Java 11).

Deployment options

You can run this quickstart in the following modes:

Kubernetes / Single-node OpenShift cluster
Standalone on your machine

The most effective way to run this quickstart is to deploy and run the project on OpenShift.

For more details about running this quickstart on a single-node OpenShift cluster, CI/CD deployments, as well as the rest of the runtime, see the Spring Boot Runtime Guide.

Running the Quickstart on a single-node Kubernetes/OpenShift cluster

Important

You need to run this example on Container Development Kit 3.3 or OpenShift 3.7. Both of these products have suitable Fuse images pre-installed. If you run it in an environment where those images are not preinstalled follow the steps described in Running the Quickstart on a single-node Kubernetes/OpenShift cluster without preinstalled images.

A single-node Kubernetes/OpenShift cluster provides you with access to a cloud environment that is similar to a production environment.

If you have a single-node Kubernetes/OpenShift cluster, such as Minishift or the Red Hat Container Development Kit, installed and running, you can deploy your quickstart there.

Log in to your OpenShift cluster:
```
$ oc login -u developer -p developer
```
Create a new OpenShift project for the quickstart:
```
$ oc new-project MY_PROJECT_NAME
```
Change the directory to the folder that contains the extracted quickstart application (for example, my_openshift/spring-boot-camel-soap-rest-bridge) :

or
```
$ cd my_openshift/spring-boot-camel-soap-rest-bridge
```
Build and deploy the project to the OpenShift cluster:
```
$ mvn clean -DskipTests oc:deploy -Popenshift
```
In your browser, navigate to the MY_PROJECT_NAME project in the OpenShift console. Wait until you can see that the pod for the spring-boot-camel-soap-rest-bridge has started up.
On the project’s Overview page, navigate to the details page deployment of the spring-boot-camel-soap-rest-bridge application: https://OPENSHIFT_IP_ADDR:8443/console/project/MY_PROJECT_NAME/browse/rc/spring-boot-camel-soap-rest-bridge-NUMBER_OF_DEPLOYMENT?tab=details.
Switch to tab Logs and then see the messages sent by Camel.

Running the Quickstart on a single-node Kubernetes/OpenShift cluster without preinstalled images

A single-node Kubernetes/OpenShift cluster provides you with access to a cloud environment that is similar to a production environment.

If you have a single-node Kubernetes/OpenShift cluster, such as Minishift or the Red Hat Container Development Kit, installed and running, you can deploy your quickstart there.

Log in to your OpenShift cluster:
```
$ oc login -u developer -p developer
```
Create a new OpenShift project for the quickstart:
```
$ oc new-project MY_PROJECT_NAME
```
Configure Red Hat Container Registry authentication (if it is not configured). Follow documentation.

Import base images in your newly created project (MY_PROJECT_NAME):

$ oc import-image fuse-java-openshift-jdk11-rhel8:1.13 --from=registry.redhat.io/fuse7/fuse-java-openshift-jdk11-rhel8:1.13 --confirm

Change the directory to the folder that contains the extracted quickstart application (for example, my_openshift/spring-boot-camel-soap-rest-bridge) :

or
```
$ cd my_openshift/spring-boot-camel-soap-rest-bridge
```

Build and deploy the project to the OpenShift cluster:

$ mvn clean -DskipTests oc:deploy -Popenshift -Djkube.generator.fromMode=istag -Djkube.generator.from=MY_PROJECT_NAME/fuse-java-openshift-jdk11-rhel8:1.13

In your browser, navigate to the MY_PROJECT_NAME project in the OpenShift console. Wait until you can see that the pod for the spring-boot-camel-soap-rest-bridge has started up.
On the project’s Overview page, navigate to the details page deployment of the spring-boot-camel-soap-rest-bridge application: https://OPENSHIFT_IP_ADDR:8443/console/project/MY_PROJECT_NAME/browse/pods/spring-boot-camel-soap-rest-bridge-NUMBER_OF_DEPLOYMENT?tab=details.
Switch to tab Logs and then see the messages sent by Camel.

Integration Testing

The example includes a Kubernetes Integration Test. Once the container image has been built and deployed in Kubernetes, the integration test can be run with:

mvn test -Dtest=*KT

The test is disabled by default and has to be enabled using -Dtest.

Running the quickstart standalone on your machine

To run this quickstart as a standalone project on your local machine:

Download the project and extract the archive on your local filesystem.
Build the project:
```
$ cd PROJECT_DIR
$ mvn clean package
```
Run the service:
```
$ mvn clean spring-boot:run
```
This will start a legacy SOAP-based web service on http://localhost:9090/service/bank-account as well as a REST bridge on http://localhost:8080/rest/bank-account. You can send a GET request there to obtain current balance, or a POST request with an amount to deposit. The amount should be a text/plain number.