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Basic SAPUI5 App with a Managed Application Router and a Backend Component in the Kyma Runtime

Diagram

diagram

Description

This is an example of an SAP Fiori app that is accessed by a managed application router and a backend component that runs in the Kyma runtime. The SAPUI5 app is exposed to an SAP Launchpad service and is visible in the content manager of the launchpad. The app is deployed to the HTML5 Application Repository via the Kyma runtime and uses the Authentication & Authorization service (XSUAA service) and the destination service. The backend component accepts incoming requests and returns the payload of the decoded JWT token (if available) at /be.

As a result of deploying this /deployment.yaml you will get 2 pods:

  1. html5appdeployer - an html5-app-deployer library based application that uploads favorites html5 application to HTML5 Application Repository and generates the required destinations.
  2. backend - a simple nodejs server that returns the JWT forwarded by the managed application router

In addition the following service instances are created:

  • xsuaa/application service instance bound to backend container
  • html5-apps-repo/app-host service instance bound to html5appdeployer container (used to upload content to html5 repo)
  • destination/lite instance - this is for future use - (automatically generate destination configurations on instance level)

Download and Deployment

  1. Have an account for a Docker registry and log in the the docker CLI (e.g. DockerHub)

  2. Install the Kubernetes Command Line Tool

  3. Subscribe to the launchpad service if you haven't done so before.

  4. Build and upload the docker image of the backend component

     cd managed-html5-runtime-jwt-kyma/backend
 docker build -t <yourAccount>/kyma-simple-backend .
 docker push <yourAccount>/kyma-simple-backend

  5. Build and upload the docker image of the html5 app deployer

     cd ../deployer
 docker build -t iobert/kyma-html5-app-deployer .
 docker push iobert/kyma-html5-app-deployer

  6. Add your (e.g. "c-13093b0") to the destination which is defined in the environment variable BACKEND_DESTINATIONS of the deployment descriptor. You can find the in the entry page of the Kyma dashboard

  7. Deploy the project

    cd ..
kubectl apply -f deployment.yaml

  8. Access the web app via the SAP BTP cockpit or assemble the URL according to the following pattern:

    https://<account id>.launchpad.cfapps.eu10.hana.ondemand.com/<destination service instance ID>.businessservice.tokendisplay/index.html    ->
https://43de072btrial.launchpad.cfapps.eu10.hana.ondemand.com/8aebc2e1-2234-4bd1-8da4-e15231138dbf.businessservice.tokendisplay/index.html

    You can find the destination service instance ID in the Kyma dashboard

Check the Result

Check the HTML5 App

Access the URL described in Download and Deployment to view the web app. You are redirected to a sign-on page before you can see the web app.

webapp