Baumbusch L. ABAP RESTful Application Programming Model...Guide 2023

Textbook in PDF format

You’ve worked with ABAP, SAP Fiori, and core data services—now see how these technologies and more come together in the ABAP RESTful application programming model. Learn to develop applications optimized for SAP S/4HANA, whether your system is on-premise or in the cloud. Follow step-by-step instructions to build new ABAP applications, update legacy applications, and reuse existing source code. Make the new model work for you!
The ABAP RESTful application programming model is a new way to develop enterprise applications on the ABAP platform. The programming model includes all application development steps and elements: the data model; operations (e.g., creating, reading, changing, or deleting business objects); business logic (e.g., calculations or checks); transactional behavior (e.g., locking behavior, numbering, etc.); and technical interface (typically, OData).
Highlights include
REST architecture
Core data services (CDS)
Behavior definition and implementation
Business service definition and binding
Field definitions, associations, and actions
Entity manipulation language (EML)
SAP Fiori elements
SAP Business Application Studio
Visual Studio Code
SAP BTP, ABAP environment