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 Services

This guide introduces how to define and implement services, leveraging generic implementations provided by the CAP runtimes, complemented by domain-specific custom logic.

Consuming Services

Learn how to use uniform APIs to consume local or remote services.

Events & Messaging

CAP provides intrinsic support for emitting and receiving events. This is complemented by Messaging Services connecting to message brokers to exchange event messages across remote services.

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.

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.

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 the localization/i18n of static content, such as labels or messages, to serve localized versions of actual application data.

Temporal Data

CAP provides out-of-the-box support for declaring and serving date-effective entities with application-controlled validity, in particular to serve as-of-now and time-travel queries.

Media Data

CAP provides out-of-the-box support for serving media and other binary data.

Managing Data Privacy

CAP helps application projects to comply with data privacy regulations using SAP Business Technology Platform (BTP) services.

Deploy & Operate

Learn here about the essential steps to deploy a CAP application to SAP BTP Cloud Foundry environment, and options to operate them.

Extending and Customizing SaaS Solutions

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

Reuse, Compose, and Integrate

Learn how to compose enhanced, verticalized solutions by reusing content from other projects, and adapt them to your needs by adding extensions or projections.