Deploy a CAP Business Application to SAP Business Technology Platform

It’s now time to switch to SAP HANA as a database. To continue with this tutorial you need to Set Up the SAP HANA Cloud Service or Use an Existing SAP HANA Cloud Service Instance to deploy your application.

Your SAP HANA Cloud instance will be automatically stopped overnight, according to the server region time zone. That means you need to restart your instance every day, before you start working with your trial.

1. If cds watch is still running in VS Code, choose CTRL+C in the command line to stop the service.

2. To prepare the project, execute in the root level of your project in VS Code:

   cds add hana
   

   This configures deployment for SAP HANA to use the hdbtable and hdbview formats. The previous command added the @sap/hana-client driver for SAP HANA as a dependency in package.json. Note that in the future, this might change to hdb, which is a leaner driver. See section SAP Support for hdb and @sap/hana-client for a feature comparison.

   A data source of type sql is added in the cds.requires.db block. See section Node.js configuration in the CAP documentation for more details.

3. (Optional) To enable SAP Fiori preview add the following configuration in the package.json of your my-bookshop project in VS Code:

   "cds": {
     "features": {
       "fiori_preview": true
     },
   }
   

   fiori_preview:true enables SAP Fiori preview also in production mode as you saw it in your local application in the previous tutorial in step 4 when using cds watch. This feature is meant to help you during development and should not be used in productive applications.

   Don’t edit the gen/db/package.json file.

The Cloud Foundry API endpoint is required so that you can log on to your SAP BTP Cloud Foundry space through Cloud Foundry CLI.

1. Go to the SAP BTP Trial Cockpit and choose Go To Your Trial Account.

   

2. From the Subaccounts overview navigate to your subaccount.

   

3. From your subaccount copy the Cloud Foundry API Endpoint value.

   

4. Go back to Visual Studio Code to the command line. Authenticate with your login credentials using the following command:

   cf login
   

   This will ask you to select Cloud Foundry API, org, and space.

   The API Endpoint is taken by default. If you want to change the API Endpoint use cf api <CF_API_ENDPOINT> to change the API. Replace <CF_API_ENDPOINT> with the actual value you obtained in the previous step.

   If you don’t know whether you’re logged on to Cloud Foundry or if you’re wondering to which Cloud Foundry org and space are you logged on, you can always use cf target in a terminal to find out.

SAP BTP, Cloud Foundry environment has a built-in cf push command to deploy applications. It needs the application files plus an optional manifest.yml file to push the application code and to bind the relevant services to the application.