Espresso Tutorials Schnelleinstieg in das SAP ABAP RESTful Application Programming Model (RAP)

From Legacy to Innovation. This book offers ABAP developers and SAP consultants a practical introduction to the current evolution stage of ABAP programming for SAP: the ABAP RESTful Application Programming Model (RAP). RAP provides you with the opportunity to develop SAP S/4HANA Cloud-capable and future-proof applications. The authors familiarize you with the fundamentals and key components of RAP, such as Business Objects (BO), their Behavior Definition, and Business Services. You will learn about the Entity Manipulation Language (EML) as a new appendix to ABAP. Other topics include various methodologies such as Numbering, Determinations, Validations, Actions, Functions, Drafts, and Hierarchies within the RAP model. A dedicated chapter focuses on Custom Entities, which allow you to source data from other sources like OData web services and non-SAP systems. Alternating between theoretical foundations and practical examples, you will experience the application possibilities of RAP and learn how to develop powerful and reliable applications with its help, thereby creating added value for your company. Fundamentals of RAP: Introduction to Business Objects, Behavior, and Services. Efficiency enhancement: Optimization through RAP methods. Entity Manipulation Language: new ABAP addition for RAP Business Objects. Data integration: applying external data in RAP services.