Create a CAP Service with BAS Productivity Tools

1. In the storyboard, click the plus sign ( + ) above Data Models.

   

   This will display the data model canvas, with a new data entity called Entity1. You will now change the name and add the fields.

   Click the Show Details icon to open the editor.

   

2. In the editor, change the name of the entity to Risks (save by clicking the checkmark ☑️) and add the following fields:

   Property name	Property Type	Max Length
   title	string	100
   prio	string	5
   descr	string	100
   impact	integer
   criticality	integer

   Close the editor by clicking the top-right X.

   

3. Create another entity called Mitigations by clicking Add Entity and dropping the new entity on the canvas.

   

   Again, click the Show Details icon (select the entity to see its side menu).

   

   Change the name of the entity to Mitigations (and click ☑️) and add the following fields:

   Property name	Property Type	Max Length
   description	string	100
   owner	string	100
   timeline	string	100

   

   Close the editor by clicking the top-right X.

4. Add relationship between the entities by selecting the Mitigations entity, and clicking the Relationship icon.

   This will create an arrow for you to indicate the other entity with which to form a relationship.

   

   Drag the icon and drop it on the Risks entity, and click.

   

   This will open the relationship editor.

   

   All of the following properties will be set:

   Field	Value
   Type	Association
   Multiplicity	To-many
   Name	risks
   Target Entity	RiskManagement.Risks
   Backlink Property	mitigations

   Click Create.

   This will create a relationship.

   

5. For both entities, open the Show Details pane again.

   Select the Aspects tab, and enable the managed aspect.

   

   Repeat for Mitigations entity.

1. Back in the storyboard, click the plus ( + ) next to Services to add a service.

   

   Choose the Risks entity, disable the Enable Draft Editing, and click OK.

   IMPORTANT: Please make sure that the Enable Draft Editing checkbox is disabled, as this will prevent you from adding records and seeing the data in the following tutorials. Note that if you disable the checkbox and then select an entity, the checkbox will be re-enabled.

   

2. Click Add Entity and place the new entity in the canvas.

   

   Choose the Mitigations entity, disable the Enable Draft Editing, and click OK.

1. Download the CSV data files RiskManagement-Risks.csv and RiskManagement-Mitigations.csv.

2. Go back to the storyboard.

3. Right-click the Mitigations entity, and select Add Sample Data.

   

4. Choose Import, and click Add.

   

5. Select the downloaded RiskManagement-Mitigations.csv file.

   The data is automatically added and saved.

   

6. Go back to the storyboard, and do the same for the Risks entity with the RiskManagement-Risks.csv file.

1. On the storyboard, select the little person icon next to RiskManagementService.

   

   You can also open the User Roles editor by selecting the Open Editor dropdown and choosing User Roles.

   

2. Add a role by clicking the plus sign ( + ) next to User Roles.

   

   Call the role RiskViewer and keep the privilege at Read.

   

   Click Save.

3. Select the new role, and then select your service, RiskManagementService from the dropdown.

   

   Click Add Service Entities, and toggle on the two entities. The privileges should already be set to Read.

   Click Save.

   

4. Add another role by clicking the plus sign ( + ).

   Call the role RiskManager and change the privilege to Full.

   

   Click Save.

5. Select the new role, and then select your service, RiskManagementService from the dropdown.

   Click Add Service Entities, and toggle on the two entities. The privileges should already be set to Full.

   Click Save.

   

1. Open the Task Explorer by clicking on the side panel.

   

   Expand the Deploy node to see your project.

   

2. Hover over Enable Discovery and Deploy RiskManagement and click the Run icon next to your project.

   

   The deployment process will run briefly, a Terminal window will open at the bottom of the screen, and then the Cloud Foundry login screen will appear. (You may need to make the Terminal area smaller to see the login screen.)

   

   You are deploying to Cloud Foundry, so you must login and tell BAS to which Cloud Foundry to deploy.

3. Enter your Cloud Foundry endpoint, and your username and password for SAP BTP trial, and click Sign-in.

   Once you login to Cloud Foundry in general, BAS will want to know to which subaccount and space you want to deploy to.

   

   Select the subaccount (Cloud Foundry organization), and then the space.

   If you are working on trial, you will likely have only one choice for each.

   Click Apply.

The deployment will take about 5 minutes to finish. When complete, you will get the URL to your service, though you will not have permissions to view it.

TROUBLESHOOTING:

• In a SAP BTP trial account, SAP Business Application Studio allows only 2 deployments using a Full-Stack Application Using Productivity Tools dev space. If you created the application from the SAP Build lobby, this is the type of dev space used behind the scenes.

• If you have trouble redeploying the CAP service, you may want to remove the previous deployment by running the following command in a terminal window:

  Code Copy

  cf undeploy RiskManagement --delete-services --delete-service-keys

  The above assumes your app is named RiskManagement. You can check all deployed apps by running the command cf mtas.

1. In your trial account, on the left-side menu, click Cloud Foundry > Spaces. You likely will have only one space, called dev.

   Click the space, and you will now see your application.

   

   Click on the link RickManagement-srv, and you will see a link. Click on it.

   

   You will get a page with information about your service, with a link to the service (service/RiskManagement).

   You will not see anything yet since you are not authorized. In the next tutorial, we will test it from SAP Business Application Studio, and in the following tutorial you will access it from SAP Build Apps.

2. The destination for your service – so that other services like SAP Build Apps can call it – was already created. But if you needed to create it yourself, you would do so by getting information about your service.

   Go back to the previous page, and on the left click Service Bindings, and then click RiskManagement-uaa.

   

   On the right you will see a service key, and by clicking View you will get the client ID, and secret and other information for this service that would be needed to create a destination.