Deploying application to SAP BTP
In this exercise, you will learn how to deploy the application to SAP BTP.
Prerequisites
For the complete execution of current exercise, you must execute the following activities first:
- Execute the following exercises:
- Create your Pay-As-You-Go Account in SAP BTP
- Complete the exercise Implementing CRUD operations in SAP Cloud SDK application
- Complete the exercise Activating the APIs in SAP S/4HANA Cloud
Steps
Checkout the branch javaspring_v5.0_deploytocf in SAP Business Application Studio
Open SAP Business Application Studio.
Run the following commands in the terminal. Make sure current working directory is /home/user/projects/cloud-sdk-learning-journey.
Code snippetCopy codecd ~/projects/cloud-sdk-learning-journey git checkout javaspring_v5.0_deploytocf
Build and push the project to SAP BTP
Create a destination named mydestination in the SAP BTP subaccount with the following values
Build and push the application to SAP BTP by running the following commands in the terminal (login using
cf login
in case of need):Code snippetCopy codecd bpstandardvdm mvn clean install -Dmaven.test.skip=true cf create-service destination lite mydestination cf create-service xsuaa application myxsuaa cf push cf set-env bpstandardvdm API_KEY YOUR_APIKEY_GOES_HERE cf restage bpstandardvdm
Note
You will have to login to your SAP BTP Cloud Foundry account before running the cf commands. Since the application depends on xsuaa and destination service, we need to create an instance of these services before deploying the applicationVerify that the application is successfully deployed in SAP BTP and the myxsuaa and mydestination services are bound to the application
Query the Business Partner API of SAP S/4HANA Cloud
Find out the URL of the application. After successful completion of the command cf push, the URL is displayed on the screen
Open a new tab and browse to https://<application URL>/businessPartners - <application URL> is the URL you copied after executing the cf push command
Verify that you are able to retrieve all the business partners
Note
The destination values can be modified to connect to an actual SAP S/4HANA Cloud system. Also, the SAP API Business Hub does not support CREATE, UPDATE operations
Optional: Review code in the following source files
Code walk-through
File name Comments on code changes BusinessPartnerController.java Code logic is as follows...
- Create a variable named destination of type HttpDestination using the getDestination static method of the DestinationAccessor class by passing the name of the destination
- GetBusinessPartnersCommand.java
- GetBusinessPartnerCommand.java
- CreateBusinessPartnerCommand.java
- UpdateBusinessPartnerCommand.java
- DeleteBusinessPartnerCommand.java
Read the APIKEY using an environment variable manifest.yml Configuration values are as follows...
- Provide basic application information like name, memory, timeout, path etc.
- Specify that the application depends on myxsuaa and mydestination services
requests.http Provides various HTTP requests that can be submitted to query the Business Partner API commands.txt Provides various commands that can be run on the terminal
Optional: Manually create the project
Create or update the following files in the table below
File name Type Contents BusinessPartnerController.java Path: ~/projects/bpstandardvdm/application/src/main/java/com/sap/cloud/sdk/tutorial/controllers
Modified Copy contents from here...
GetBusinessPartnersCommand.java Path: ~/projects/bpstandardvdm/application/src/main/java/com/sap/cloud/sdk/tutorial/utils
Modified Copy contents from here...
GetBusinessPartnerCommand.java Path: ~/projects/bpstandardvdm/application/src/main/java/com/sap/cloud/sdk/tutorial/utils
Modified Copy contents from here...
CreateBusinessPartnerCommand.java Path: ~/projects/bpstandardvdm/application/src/main/java/com/sap/cloud/sdk/tutorial/utils
Modified Copy contents from here...
UpdateBusinessPartnerCommand.java Path: ~/projects/bpstandardvdm/application/src/main/java/com/sap/cloud/sdk/tutorial/utils
Modified Copy contents from here...
DeleteBusinessPartnerCommand.java Path: ~/projects/bpstandardvdm/application/src/main/java/com/sap/cloud/sdk/tutorial/utils
Modified Copy contents from here...
manifest.yml Path: ~/projects/bpstandardvdm
Modified Copy contents from here...