A simple Java Spring application which acts as a backend for the mobile application. The backend is responsible for:

• Creating transactions in the wallee platform.
• Create and refresh the credentials used by the mobile app.

The backend will normally contain more code which is responsible for the business logic of the app than this sample application.

The sample backend can be started locally or on a public reachable instance on the Google App Engine.

In any case you need to install Java 8. Depending on the way you want to deploy you may need more configurations and tools installed. We use gradle for managing the dependency, building the application and the deployment of it.

In any case you need to clone the project to run it:

git clone https://github.com/wallee-payment/wallee-sample-mobile-backend.git

// FIXME define how to configure the application locally.

You can run the application locally by either using gradle bootRun resp. ./gradlew bootRun or you can start the com.wallee.mobile.backend.Application from within the IDE.

The application can be also deployed to a public reachable instance. This can be achieved by following the steps below:

• Install the Google Cloud SDK https://cloud.google.com/sdk/
• Install Java App Engine components

gcloud components install app-engine-java

• Initiate the project

gcloud init

The application user ID and the shared secret we put into a meta store. We use

• WalleeApplicationUserId for the application user ID and
• WalleeApplicationUserKey for the API key.

You can specify both configurations within the meta store configuration: https://console.cloud.google.com/compute/metadata

You are now ready to run commands

• Stage : ./gradlew appengineStage
• Deploy : ./gradlew appengineDeploy