The CAP Cookbook

Guides and Recipes for Common Tasks

The following figure illustrates a walkthrough of the most prominent tasks within CAP’s universe of discourse (aka scope). The guides listed below provide details and instructions about each.

cookbook

Domain Modeling with CDS: Most projects start with capturing the essential objects of their domain in a respective domain model. Find here an introduction to the basics of domain modeling with CDS, complemented with recommended best practices.
Providing Services: Every active thing in CAP is a service. They embody the behavioral aspects of a domain in terms of exposed entities, actions, and events. This guide introduces how to define and implement services, leveraging generic implementations provided by the CAP runtimes.
Consuming Services: Learn how to consume local or remote services using uniform APIs.
Using Databases: This guide will help you to learn about defining, providing, implementing, deploying, and publishing services — so it’s about Service Providers in general.
Localization (i18n): Guides you through the steps to internationalize your application to provide localized versions with respect to both Localized Models as well as Localized Data.
Localized Data: This guide extends Localization/i18n of static content, like labels or messages, to serving localized versions of actual application data.
Temporal Data: CAP provides out-of-the-box support for declaring and serving so-called date-effective entities with application-controlled validity. In particular to serve as-of-now and time-travel queries.
Authorization and Access Control: This guide explains how to restrict access to data by adding respective declarations to CDS models, which are then enforced in service implementations.
Managing Data Privacy: CAP helps application projects to comply to data privacy regulations using SAP Business Technology Platform (BTP) services.
Multitenancy: This guide explains how CAP supports multi-tenant SaaS applications and what you as an implementor and provider of such should know.
SaaS Extensibility: This guide explains how SaaS subscribers can extend, and hence customize, SaaS applications on a tenant level to their specific needs.
Reuse, Compose, and Integrate: Learn here how to compose enhanced, verticalized solutions by reusing content from other projects, and adapt it to your needs by adding extensions or projections.