ABAP RESTful Application Programming Model: The Comprehensive Guide

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!

• Develop ABAP applications for SAP S/4HANA and SAP BTP
• Use key tools and technologies, including core data services and SAP Fiori
• Get step-by-step guidance for modeling data, implementing behaviors, developing user interfaces, and more

In this book, you'll learn about:

Programming Model Basics

What is REST architecture? What are the components of the ABAP RESTful application programming model? What tools and technologies can you use to build end-to-end applications? Get the answers to these questions and more!

Hands-On Application Development

Follow step-by-step instructions to use core data services for data modeling, define and implement behaviors, access business objects with the entity manipulation language, and build a UI with SAP Fiori. See how to adjust your skills to work with the SAP BTP, ABAP environment in the cloud.

Use Cases and Scenarios

Develop new applications with SAP Fiori elements floorplans. Learn to integrate existing applications into the ABAP RESTful application programming model and reuse source code from current applications.

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

About the Author

Lutz Baumbusch has been working as an SAP developer since 2000 and has been responsible for international SAP projects in various roles and areas. At All for One Group SE, he prepares current developer topics for internal and external training in the SAP S/4HANA development team. He studied at the Karlsruhe Institute of Technology.

Matthias Jäger is a freelance SAP developer of software products based on the ABAP platform. In addition to his work as a developer, he works as an architect and coach, designs cross-product, technical aspects, and leads training courses. Previously, he worked as a part of the solution development team at All for One Group SE.

In 2004 he started his career as an SAP developer and as a developer of Java-based software products. Since then, he has worked as a developer, development manager, and trainer in different SAP implementation projects in the logistics sector. He has been a regular guest lecturer at DHBW Stuttgart, where he teaches ABAP programming and the use of system analysis methods. He studied business informatics in Heidenheim as part of a dual degree program.

Michael Lensch leads a team of SAP developers at All for One Group SE. As development manager, he is responsible for development in SAP S/4HANA implementation projects in Germany and abroad. Since 2014, he has also led a technical team that deals with development for SAP HANA and SAP S/4HANA. He studied computer science at Trier University of Applied Sciences.