Features Overview

Following is an index of the features currently covered by CAP, with status and availability information. In addition, we also list features, which are planned or already in development, but not yet generally available, to give you an idea about our roadmap.

Legend

Tag	Explanation
✓	generally and publicly available today
n/a	not applicable for this combination
in prog.	in progress; likely to become available near-term
planned	we might pick that up for development soon
contrib?	not scheduled for development by us so far
contrib	already active contribution

CLI & Tools Support

CLI commands
Jump-start cds-based projects	cds init <project>
Add a feature to an existing project	cds add <facets>
Add models from external sources	cds import <api>
Compile cds models to different outputs	cds compile <models>
Run your services in local server	cds serve <services>
Run and restart on file changes	cds watch
Read-eval-event loop	cds repl
Inspect effective configuration	cds env
Prepare for deployment	cds build
Deploy to databases or cloud	cds deploy
Login to multitenant SaaS application	cds login <app-url>
Upgrade SaaS tenant(s) to latest versions	cds upgrade
Logout from multitenant SaaS application	cds logout
Subscribe a tenant to a SaaS application	cds subscribe <tenant>
Unsubscribe a tenant from a SaaS application	cds unsubscribe <tenant>
Pull the base model for a SaaS extension	cds pull
Push a SaaS extension	cds push

Run cds help <command> to find details about an individual command. Use cds version to check the version that you've installed. To know what is the latest version, see the Release Notes for CAP.

Editors/IDE Support	Application Studio	VS Code
CDS Syntax Highlighting	✓	✓
CDS Code Completion	✓	✓
CDS Prettifier	✓	✓
Advanced Debug/Run Tools	✓
Project Explorer	✓
...

CDS Language & Compiler

	CDS
Entity-Relationship Modeling	✓
Custom-defined Types	✓
Views / Projections	✓
Associations & Compositions	✓
Annotations → Common, OData	✓
Aspects	✓
Services...	✓
— w/ Redirected Associations	✓
— w/ Auto-exposed Targets	✓
— w/ Actions & Functions	✓
— w/ Events	✓
Managed Compositions of Aspects	✓
Structured Elements	✓
Nested Projections	in prog.
Calculated Elements	✓
Managed n:m Associations	planned
Pluggable CDS Linter	in prog.
CDS Linter	✓

Providing Services

Core Framework Features	CDS	Node.js	Java
Automatically Serving CRUD Requests	n/a	✓	✓
Deep-Read/Write Structured Documents	✓	✓	✓
Automatic Input Validation	✓	✓	✓
Auto-filled Primary Keys	✓	✓	✓
Implicit Paging	✓	✓	✓
Implicit Sorting	✓	✓	✓
Access Control	✓	✓	✓
Arrayed Elements	✓	✓	✓
Streaming & Media Types	✓	✓	✓
Conflict Detection through ETags	✓	✓	✓
Authentication via JWT	n/a	✓	✓
Basic Authentication	n/a	✓	✓

Enterprise Features	CDS	Node.js	Java
Authorization	✓	✓	✓
Analytics in Fiori	✓	in prog.	✓
Localization/i18n	✓	✓	✓
Localized Data	✓	✓	✓
Temporal Data	✓	✓	✓
Managed Data	✓	✓	✓
Dynamic Extensibility	✓	✓	✓
Monitoring / Logging [Node.js|Java]	n/a	✓	✓
Audit Logging [Node.js|Java]	n/a	✓	✓

Inbound Protocol Support	CDS 1	Node.js	Java
REST/OpenAPI	✓	✓	✓
OData V2 2	✓	✓ 3	✓
OData V4	✓	✓	✓
OData V4 for APIs	in prog.	in prog.	in prog.
GraphQL4	contrib?	✓5	contrib? 6

¹ Export CDS models to ...
² To support customers with existing OData V2 UIs
³ Through V2 proxy
⁴ Could be a good case for 3rd-party contribution
⁵ For Node.js try out the GraphQL Adapter
⁶ For Java try out the provided sample code.

Consuming Services

Service Consumption APIs	Node.js	Java
Uniform Consumption APIs → Hexagonal Architecture	✓	✓
Dynamic Querying	✓	✓
Programmatic Delegation	✓	✓
Generic Delegation	planned	planned
Resilience (retry, circuit breaking, ...)	contrib?	✓

Outbound Protocol Support	CDS 1	Node.js	Java
REST/OpenAPI	✓	✓	✓
OData V2	✓	✓	✓
OData V4	✓	✓	✓
GraphQL2	contrib?	contrib?	contrib?

¹ Import API to CSN
² Could be a good case for 3rd-party contribution

Learn more about supported features for consuming services.

Events / Messaging

	CDS	Node.js	Java
Declared Events in CDS	✓	✓	✓
Mock Broker (to speed up local dev) [Node.js|Java]	n/a	✓	✓
SAP Cloud Application Event Hub	n/a	✓ plugin	✓ plugin
SAP Event Mesh	n/a	✓	✓
Composite Messaging (routing by configuration) [Node.js|Java]	n/a	✓	✓
Import AsyncAPI	planned
Export AsyncAPI	✓

Database Support

	CDS/deploy	Node.js	Java
SAP HANA	✓	✓	✓
SAP HANA Cloud	✓	✓	✓
PostgreSQL	✓	✓	✓
SQLite 1	✓	✓	✓
H2 1	✓	n/a	✓
MongoDB out of the box	n/a	n/a	in prog.
Pluggable drivers architecture	in prog.	in prog.	✓
Out-of-the-box support for other databases?	contrib?	contrib?	contrib?

¹ To speed up development. Not for productive use!

Note: You can already integrate your database of choice in a project or a contribution level. The last two are meant to further facilitate this by out-of-the-box features in CAP.

UIs/Frontend Support

	CDS	Node.js	Java
Serving Fiori UIs	✓	✓	✓
Fiori Annotations in CDS	✓	✓	✓
Advanced Value Help	✓	✓	✓
Draft Support	✓	✓	✓
Draft for Localized Data	✓	✓	✓
Support for Fiori Analytics	✓	in prog.	✓
Support for other UI technologies, for example Vue.js 1	✓	✓	✓

¹ through standard REST/AJAX

Platform Support & Integration

	Node.js	Java
Deploy to/run on SAP BTP, Cloud Foundry environment	✓	✓
Deploy to/run on Kubernetes1	in prog.	in prog.
Deploy to/run on Kyma	✓	✓
SaaS on-/offboarding	✓	✓
Multitenancy	✓	✓
Health checks	✓	✓

¹ Available on plain Kubernetes level → see blog post by Thomas Jung

Extensibility

Tenant-Specific Extensions	✓
Adding Extension Fields	✓
Adding new Entities	✓
Adding new Relationships	✓
Adding/Overriding Annotations	✓
Adding Events	planned
Extension Namespaces	✓
Extension Templates	✓
Custom Governance Checks	in prog.
Generic Input Validations	✓
Declarative Constraints	planned
Execute Sandboxed Code	planned
Runtime API for In-App Extensibility	in prog.
Propagating Extensions across (µ) Services	planned