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.

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 & Consuming Services

Every active thing in CAP is a service. This applies to the application services you define in your project, as well as technical services delivered as parts of the CAP framework. This guide introduces the basics about defining, implementing, and publishing services, as well consuming other services.

Using Generic Providers

CAP provides manifold generic handlers for common, recurring tasks which serve many requests out-of-the-box, thereby capturing proven best practices collected from a wealth of successful SAP applications.

Using Databases

This guide is about defining, providing, implementing, deploying, and publishing services — so 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.

Multitenancy

This guide explains how CAP supports multi-tenant SaaS applications and what you as an implementor and provider of such should know.

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.

SaaS Extensibility

This guide explains how SaaS subscribers can extend, and hence customize, SaaS applications on a tenant level to their specific needs.