SAP RAP (Rapid Application Development) is a framework that allows developers to create and deploy applications in the SAP Cloud Platform using the CAP (Cloud Application Programming) model. This model is designed to help developers build applications that are scalable, modular, and easy to maintain. In this blog, we will discuss the structure of a SAP RAP based application.
Structure of a SAP RAP based application:
1. Data Model: The first step in building a SAP RAP based application is designing the data model. The data model defines the structure of the data that the application will use. The data model can be defined using CDS (Core Data Services) or using an external database. CDS is a declarative language that is used to define data models, services, and user interfaces.
2. Service Definition: Once the data model is designed, the next step is to define the service. The service definition is used to define the operations that can be performed on the data. The service definition can be defined using CDS or using an external service. The service definition can be used to define the CRUD (Create, Read, Update, Delete) operations.
3. Business Logic: The business logic is the code that is used to implement the business rules. The business logic can be implemented using JavaScript or using CDS. The business logic can be used to validate the data, perform calculations, and implement the business rules.
4. User Interface: The user interface is the part of the application that is used by the end-users. The user interface can be developed using SAP Fiori or using any other UI framework. SAP Fiori is a collection of web applications that are designed to be used on desktop and mobile devices.
5. Authorization and Authentication: Authorization and authentication are important aspects of any application. Authorization is used to control access to the data and the operations. Authentication is used to authenticate the user before allowing them to access the application. SAP provides various authentication and authorization mechanisms such as SAP Cloud Platform Identity Authentication Service.
6. Deployment: Once the application is developed, it needs to be deployed to the SAP Cloud Platform. The deployment can be done using SAP Web IDE or using any other deployment tool. The deployment tool will create a package of the application and deploy it to the SAP Cloud Platform.
In conclusion, SAP RAP is a framework that allows developers to create and deploy applications in the SAP Cloud Platform. The structure of a SAP RAP based application includes designing the data model, defining the service, implementing the business logic, developing the user interface, implementing authorization and authentication, and deploying the application to the SAP Cloud Platform. By following this structure, developers can create applications that are scalable, modular, and easy to maintain.
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