CAPJavaTravelDemo

This is a sample application for CAP JAVA demo with UI/DB/SRV. This app can be deployed to BTP directly and run locally.

• Main branch: contains basic code which only have one service and one app
• Dev branch: travel service demo

SAP Fiori UI with Java Backend

Build and Run

In the root folder of your project run

npm ci
mvn spring-boot:run

To start the middleware, in another console execute

cd app\travel_processor
npm start

Accessing the SAP Fiori App

Open this link in your browser: http://localhost:8080/index.html

Note: If you access the CAP Java server directly without middleware, you will have to enter mock user credentials admin / admin which are maintained in file application.yml.

Find backend service in local

• XS-APP : this file is used to route backend service
• ui5.yaml: this file contains customMiddleware which is used to route locally

• mountPath: it is used in manifest
• baseUri: this one should be the backend service url which is routed to
• @(path:'/admin'): the service path should be contained in service cds file

Find backedn service on BTP

• XS-APP: this file is used to route backedn service with the destination name
• ui5-deploy.yaml: this file is used to zip fiori content with xs-app file
• package.json: contains scripts using ui5-deploy.yaml file
• service path

• mta.yaml: this will create destination service for backend on BTP

Deployment to SAP Business Technology Platform

The project contains a configuration for deploying the CAP services and the SAP Fiori app to the SAP Business Technology Platform (SAP BTP) using a managed application router. The app then becomes visible in the content manager of the SAP Launchpad service.

Build the Project

Build the project from the command line:

mbt build

The build results will be stored in the directory mta_archives.

Deploy

1. Log in to the target space.
2. Deploy the MTA archive using the CF CLI: cf deploy mta_archives/****.mtar

Local Development with a HANA Cloud Instance

You need to have access to a HANA Cloud instance and SAP BTP.

1. Deploy the HDI content to a HANA HDI container (which is newly created on first call): cds deploy --to hana.
2. Start the application with the Spring Profile cloud.
   1. From Maven: mvn spring-boot:run -Dspring-boot.run.profiles=cloud
   2. From your IDE with the JVM argument -Dspring.profiles.active=cloud or env variable spring.profiles.active=cloud

The running application is now connected to its own HDI container/schema. Please keep in mind that the credentials for that HDI container are stored locally on your filesystem (default-env.json).