BrowseSAP Cloud Application Programming Model
Everything in CAP
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Async processingSAP and community
@cap-js-community/event-queue@cap-js-community/event-queueTransactional processing of asynchronous and periodic events, with instant dispatch over Redis Pub/Sub and load spread across every application instance.community org, cap
Transactional processing of asynchronous and periodic CAP events
If you need sub-second fan-out to external consumers this is the wrong layer — reach for [Event Mesh](artifact:btp-event-mesh) or Kafka. Without [Redis](external:redis), periodic processing still works but instant dispatch degrades to polling.
@cap-js-community/sap-afc-sdk@cap-js-community/sap-afc-sdkSDK for building SAP Advanced Financial Closing scheduling providers on CDS.community org, cap
SDK for SAP Advanced Financial Closing scheduling providers on CDS
@odatano/watch@odatano/watchWatches Cardano addresses, payment credentials and minting policies from inside CAP, emitting events with full UTxO payloads and persisting them so a missed window can be replayed.independent, cap
CAP plugin watching Cardano addresses and emitting events
@sap/cds@sap/cdsThe CAP Node.js runtime, which compiles the CDS model, serves the services declared in it, answers generic requests before any handler runs, and loads every cds-plugin.sap official, cap
CAP Node.js runtime
Automate BTP Custom Domain certificates using Let's EncryptAutomate BTP Custom Domain certificates using Let's EncryptCertificate lifecycle management as an application: a CAP backend, a Fiori elements UI, the Custom Domain service, Cloud Foundry routes and the Job Scheduler, so requests, renewals and cleanup stop being manual. Part two of the author's BTP Toolbox.Ben, published 2026-03-19
Quick tip: event/task scheduling in CAP Node.js (in alpha state)Quick tip: event/task scheduling in CAP Node.js (in alpha state)A note on something spotted in capire's May 2025 release notes rather than a technique: CAP Node.js is to support scheduling events — actions and functions included — with callbacks, currently alpha and explicitly subject to change. Useful as a dated marker of the core moving into ground the community has been covering, and the alpha caveat is the point rather than a footnote.published 2025-10-30
Real-Time Architecture in SAP CAP: Mastering Asynchronous Jobs, Gateways with WebSocketsReal-Time Architecture in SAP CAP: Mastering Asynchronous Jobs, Gateways with WebSocketsThe other half of the author's own industrial-data post: mass ingestion is only useful if the screen keeps up, so background jobs push progress to the UI over WebSockets instead of the user reloading. Written from a mission-critical case rather than a demo.rgadirov, published 2026-03-12
Real-Time Architecture in SAP CAP: Mastering Asynchronous Jobs, Gateways with WebSockets
Async processing changed in @sap/cds 10.0, 2026-07-02. Affects A recipe.
DestinationsSAP and community
@sap-cloud-sdk/connectivity@sap-cloud-sdk/connectivityDestination lookup and the connectivity proxy — the package that turns a destination name into a reachable endpoint with credentials attached.sap official, cap
Destination lookup and connectivity proxy for the Cloud SDK
@sap-cloud-sdk/http-client@sap-cloud-sdk/http-clientThe HTTP client that carries a destination's credentials, so an outbound call inherits the authentication rather than assembling it.sap official, cap
HTTP client carrying a destination's credentials
@sap-cloud-sdk/odata-common@sap-cloud-sdk/odata-commonThe shared machinery under the SDK's OData and OpenAPI client generators; a dependency of the generated clients rather than something written against directly.sap official, cap
Shared machinery under the Cloud SDK's OData and OpenAPI clients
@sap-cloud-sdk/openapi@sap-cloud-sdk/openapiGenerated OpenAPI clients for the Cloud SDK, so a REST API described by a specification is called through typed functions.sap official, cap
Generated OpenAPI clients for the Cloud SDK
@sap-cloud-sdk/resilience@sap-cloud-sdk/resilienceTimeouts, retries and circuit breaking around a remote call, so one slow downstream system does not take the application with it.sap official, cap
Timeouts, retries and circuit breaking around remote calls
@sap-cloud-sdk/util@sap-cloud-sdk/utilGeneral utilities shared across the Cloud SDK packages — a dependency, not a thing to reach for on its own.sap official, cap
General utilities shared across the Cloud SDK packages
@sap/cds@sap/cdsThe CAP Node.js runtime, which compiles the CDS model, serves the services declared in it, answers generic requests before any handler runs, and loads every cds-plugin.sap official, cap
CAP Node.js runtime
capire/s4capire/s4A pre-built integration package for SAP S/4HANA, holding the imported service definitions a CAP project would otherwise generate for itself.sap official, cap
Prebuilt SAP S/4HANA integration package for CAP projects
cap-ams-a2acap-ams-a2aFour app-to-app configurations between CAP Java and CAP Node.js under AMS and IAS, each recording which destination setup makes user propagation and token validation hold.independent, cap
App-to-app setups between CAP Java and CAP Node.js under AMS and IAS
Neither the package manifest nor the repository tree declares a licence.
cap-openaicap-openaiTwo actions on one CAP service that reach OpenAI's chat completions endpoint by two routes: the openai npm client with the key from the environment, and a CAP remote service of kind: rest that goes through a destination in production.independent, cap
CAP service actions calling OpenAI chat completions two ways
Neither the package manifest nor the repository tree declares a licence.
SAP-samples/cap-service-integration-codejamSAP-samples/cap-service-integration-codejamA CodeJam on integrating and consuming external services from a CAP project over twelve exercises, from importing and mocking an OData service to the SAP Cloud SDK covering connectivity and destinations.sap official, cap
CodeJam on consuming external services from a CAP project
CAP Foundry: Engineering SAP CAP Applications from Business Intent with Guardrailed AICAP Foundry: Engineering SAP CAP Applications from Business Intent with Guardrailed AICAP Foundry is a prototype that generates a CAP Node.js project with SAP Fiori elements from a written business requirement, discovering the actual data shape from a chosen source — SQLite, a configured SAP HANA HDI container, offline EDMX, live OData through the SAP Destination service, or approved SAP BTP ABAP objects — instead of inventing one. The generated application can carry a Fiori draft lifecycle with optimistic concurrency via ETags and annotation-driven Fiori elements list and object screens, localized independently of the underlying service contract. Attachments can be added with upload, download and delete, gated on a malware-scan status, and the generated project still has to compile, build and pass its generated tests before the run is accepted.Shahid, published 2026-08-20
Connect SAP CAP (Node.js) to On-Premise/Private PostgreSQL using SAP Cloud ConnectorConnect SAP CAP (Node.js) to On-Premise/Private PostgreSQL using SAP Cloud ConnectorAn end-to-end route from a CAP Node.js application on Cloud Foundry to a PostgreSQL database that is never made publicly reachable, over BTP Connectivity and the Cloud Connector using a TCP destination and SOCKS5. The part worth having is that it covers the deployer as well as the server: the generated PostgreSQL deployer has to reach the same private database to deploy the CDS model, and a guide that only connects the runtime leaves you with a schema you cannot install.Kalaikovan, published 2026-08-07
Connect SAP CAP (Node.js) to On-Premise/Private PostgreSQL using SAP Cloud Connector
Database connectors changed in @sap/cds 10.1.0, 2026-09-07. Affects A recipe.
Expose S/4HANA Cloud OData API as an MCP Server via CAP Node.jsExpose S/4HANA Cloud OData API as an MCP Server via CAP Node.jsA step-by-step walkthrough that wraps SAP S/4HANA Cloud's Outbound Delivery OData v2 API in a CAP Node.js service and exposes it through @cap-js/mcp, so an MCP client can list the generated tools, query the delivery entities and call a custom createDelivery action over JSON-RPC. The remote S/4HANA connection is configured two ways in package.json: direct Basic Authentication credentials for local hybrid testing, and a named BTP destination for the app once deployed to Cloud Foundry.Jacky_Liu1, published 2026-07-29
Fullstack CAP Application with HANA Cloud (Decoupled Architecture) [Part-5]Fullstack CAP Application with HANA Cloud (Decoupled Architecture) [Part-5]The consequence of decoupling: with the back end live on its own Cloud Foundry route, the front end needs a BTP destination to reach it rather than a relative path. Short, and it is the join the architecture creates.sanjucs, published 2026-05-18
Implementing Dynamic Subaccount-Based Routing in SAP CAP with SAP BTP DestinationsImplementing Dynamic Subaccount-Based Routing in SAP CAP with SAP BTP DestinationsWhy environment variables are the wrong place for backend endpoints in a CAP application, and what replaces them: cockpit destinations resolved at runtime, with the subaccount or instance identified as the request is handled. The argument is about redeployment — an endpoint kept in the environment means a deploy every time it moves — and the shape it produces is one codebase serving several landscapes without a build per landscape.Dnyaneshwar Salve, published 2026-03-18
The ECC-to-CAP Starter KitThe ECC-to-CAP Starter KitA Devtoberfest 2026 session that builds a CAP service and a Fiori elements list report over an SAP ECC gateway service, on the argument that the CAP project, its contract and its UI survive a later move to SAP S/4HANA while the APIs behind them change. The service integration edge is the body of the demo: the metadata of the ECC flight service is saved as an EDMX file, imported with cds import so the model holds the structure and none of the data, projected read-only into a flight service, and one line of handler code forwards each read to ECC, with filtering, sorting and paging translated down to the older OData version the system speaks. The SAP Destination service edge covers the on-premise destination and the additional properties the walkthrough insists on, and the SAP Business Application Studio edge covers the full-stack dev space, the CAP project wizard, the service center plugin for picking up another OData service, and cds watch run under the profile that uses those credentials.published 2026-10-09
UI for the BTP Application Vulnerability ReportUI for the BTP Application Vulnerability ReportAn open-source SAPUI5 front end for SAP's Application Vulnerability Report API, backed by a CAP Node.js service that projects the external findings as an OData V4 entity and forwards each query with api.run(req.query). The CAP service reaches that API through a Destination service instance configured with OAuth2ClientCredentials authentication from a service key, so the address and credentials stay out of the application code.published 2026-02-10
Document outputSAP and community
@cap-js/print@cap-js/printA CDS plugin that prints a document held in a CAP entity, through SAP Print service and a @PDF.Printable annotation.sap official, cap
Prints documents held in CAP entities through SAP Print service
@salvatorela/cap-plugin-adobe-forms@salvatorela/cap-plugin-adobe-formsA CAP plugin that wraps the SAP Forms service by Adobe on BTP as a CAP service, rendering a PDF from a form template with credentials from a destination or direct configuration.independent, cap
CAP plugin wrapping the SAP Forms service by Adobe on BTP
Event MeshSAP and community
@cap-js/advanced-event-mesh@cap-js/advanced-event-meshIntegrates CAP with SAP Integration Suite advanced event mesh.sap official, cap
CAP integration with SAP Integration Suite advanced event mesh
@cap-js/asyncapi@cap-js/asyncapiExports AsyncAPI documents describing the events a CAP service emits and consumes.sap official, cap
Exports AsyncAPI documents for a CAP service's events
@cap-js/event-broker@cap-js/event-brokerConsumes events from SAP Cloud Application Event Hub.sap official, cap
Consumes events from SAP Cloud Application Event Hub in CAP
@sap/cds@sap/cdsThe CAP Node.js runtime, which compiles the CDS model, serves the services declared in it, answers generic requests before any handler runs, and loads every cds-plugin.sap official, cap
CAP Node.js runtime
com.sap.cds:cds-feature-advanced-event-meshcom.sap.cds:cds-feature-advanced-event-meshA beta CAP Java plugin that adds SAP Integration Suite, advanced event mesh as a messaging broker, activated by setting a messaging service's kind to aem.sap official, cap
CAP Java plugin for SAP Integration Suite, advanced event mesh
com.sap.cds:cds-feature-event-hubcom.sap.cds:cds-feature-event-hubA CAP Java plugin that connects CAP's messaging service to SAP Cloud Application Event Hub, so an application sends and consumes business events without coding against its API.sap official, cap
Connects CAP Java messaging to SAP Cloud Application Event Hub
cap-bp-ragcap-bp-ragAn event-driven RAG application: Cloud Integration embeds a Business Partner event taken off a broker, and the CAP service stores the vector in SAP HANA Cloud and answers questions from it.independent, cap
Event-driven RAG app with CAP, Cloud Integration and SAP HANA Cloud
Neither the package manifest nor the repository tree declares a licence.
SAP-samples/btp-event-driven-multi-tenant-architectureSAP-samples/btp-event-driven-multi-tenant-architectureA CAP reference sample showing SAP Event Mesh brokering business-partner events from S/4HANA Cloud into a multi-tenant SaaS consumer application.sap official, cap
CAP sample of SAP Event Mesh events feeding a multi-tenant SaaS app
SAP-samples/event-hub-cap-samplesSAP-samples/event-hub-cap-samplesA CAP consumer wired to SAP Cloud Application Event Hub, which has to be deployed to SAP BTP before events arrive, exposing the received events through an OData V4 service.sap official, cap
CAP consumer of SAP Cloud Application Event Hub events
Complete Guide: Setting Up CAP Plugin for Advanced Event Mesh with OAuth AuthenticationComplete Guide: Setting Up CAP Plugin for Advanced Event Mesh with OAuth AuthenticationWritten because the plugin's own documentation stops short of the prerequisites and the author had to assemble them from three other sources and a help chapter. It joins them: the OIDC application in Identity Authentication, the OAuth profile in Broker Manager, the token checked before anything is wired, and only then the plugin. The author says plainly it came out of trial and error and was going to be a README.rpagni, published 2025-11-10
How to use a CAP application to manage DMQ messages on SAP Advanced Event MeshHow to use a CAP application to manage DMQ messages on SAP Advanced Event MeshA CAP application built for the failure path rather than the happy one. Messages that land in a Dead Message Queue are deleted for good when their TTL expires, so this pulls them out first and holds them in quarantine, where a Fiori elements UI lets someone inspect a payload, correct it and reinject it. An operations tool, and a rare write-up of what to do after delivery has already failed.stefan-keuker, published 2025-12-31
How to use a CAP application to manage DMQ messages on SAP Advanced Event Mesh
Event Mesh changed in @sap/cds 10.0.3, 2026-07-02. Affects Runnable code.
Implementing Event-Driven Architecture in CAP Java using SAP Event MeshImplementing Event-Driven Architecture in CAP Java using SAP Event MeshPublish and consume from the Java stack, which most of the Event Mesh writing on the community does not cover. The MTA declaration and the credentials come first, then the emit and the handler, then the two sections that make it worth keeping: error handling with retries, and securing the events with OAuth.Soumya-Pirlamarla, published 2025-11-26
Implementing Event-Driven Architecture in CAP Java using SAP Event Mesh
Event Mesh changed in @sap/cds 10.0.3, 2026-07-02. Affects A recipe.
IntegrAItion: Event-Driven IntelligenceIntegrAItion: Event-Driven IntelligenceA Devtoberfest 2026 session, INT-33, whose line is that agents fail because they are not informed enough rather than not clever enough, and that events are how they get informed: what an event is, the source-broker-consumer split, notification against data events, and topic filtering as the thing that decides which agents are woken at all and what that costs in tokens. It covers Event Mesh as the concern — topics, subscriptions, filters and queues — and SAP Integration Suite, advanced event mesh as the product, down to its event portal and catalogue, the mesh and cluster managers and distributed tracing. The closing demo sends an S/4HANA product-defect event through the mesh to wake an agent in Joule Studio, which fetches what it still needs over MCP and reports to a person the next morning.SAP Developers, published 2026-10-07
Migrating from ASANWEE to ASAAEMEE: From SAP Event Mesh to SAP Advanced Event MeshMigrating from ASANWEE to ASAAEMEE: From SAP Event Mesh to SAP Advanced Event MeshA migration walkthrough for switching an SAP ERP or S/4HANA on-premise system from classic SAP Event Mesh to SAP Advanced Event Mesh: new RFC destinations to the broker's REST, handshake and token endpoints, trusting its certificate, activating the AEM business configuration set, and re-pointing the NetWeaver Add-On for Event Enablement's outbound object and dynamic topic mapping at the new instance. It assumes the Event Add-On for ERP (ASAAEMEE) is already installed and covers only the technical cut-over, not setting up event publishing from scratch.Benedikt_Sprung, published 2026-02-13
Publish events from CAP Node.js applications to Event Mesh of Integration SuitePublish events from CAP Node.js applications to Event Mesh of Integration SuiteThe smallest complete example: cds init, a service with one function, cds.connect.to('messaging') and an emit to a topic. Deliberately scoped — the Event Mesh setup is skipped and the subaccount is assumed to be the same one — so what remains is the handful of lines on the CAP side and the binding that makes them reach the broker.KevinWang_ST_Consultancy, published 2026-02-13
Publish events from CAP Node.js applications to Event Mesh of Integration Suite
Event Mesh changed in @sap/cds 10.0.3, 2026-07-02. Affects A recipe.
SAP Codejam on Event Driven Build ProcessSAP Codejam on Event Driven Build ProcessA hands-on CodeJam walkthrough of an event-driven flow: a Business Partner creation event from a simulated S/4HANA Cloud system is published to SAP Advanced Event Mesh, where the author configures topics, queues and subscriptions and forwards it through a REST Delivery Point to SAP Build Process Automation, which runs a business process with a human approval step and an asynchronous callback to a third-party system. The event producer stays unaware of its consumers, with SAP Build acting purely as an orchestrator reacting to events.Sharathmg, published 2026-02-03
NotificationsSAP and community
@cap-js/notifications@cap-js/notificationsPublishes business notifications to SAP Build WorkZone from the application, so a user is told something happened without the UI polling for it.sap official, cap
Business notifications from CAP to SAP Build WorkZone
@expertum/cap-email-plugin@expertum/cap-email-pluginSends mail on entity lifecycle events from an annotation — @email.enabled on an entity, an HTML template with {{placeholder}} substitution, and a plugin-owned log entity recording what went out and what failed.independent, cap
Annotation-driven mail on CAP entity lifecycle events
Node below 22, or [@sap/cds](artifact:sap-cds) below 9: the package declares the first in engines and the second as a peer dependency. Any mail path other than Microsoft Graph, until a provider is written for it: graph is the only kind that sends, and basic, the kind configured by default, is the base class such a provider extends.
@neoimpulse/cap-js-notifications@neoimpulse/cap-js-notificationsA copy of the official @cap-js/notifications plugin republished under another scope, whose README points at the original and says nothing about what was changed.independent, cap
Copy of @cap-js/notifications published under another scope
Reach for the original unless you know why you are not. This is a republished copy rather than a fork with a direction of its own: the README points at cap-js/notifications for the details, and nothing here says what was changed or why.
com.sap.cds:cds-feature-notificationscom.sap.cds:cds-feature-notificationsSends business notifications from a CAP Java application through SAP Alert Notification service, delivered to SAP Build Work Zone or email, or logged to the console in local mode.sap official, cap
Business notifications from CAP Java via SAP Alert Notification
RFC connectivitySAP and community
@sap/cds-rfc@sap/cds-rfcCalls ABAP function modules over RFC from a CAP service.sap official, cap
Calls to ABAP function modules over RFC from a CAP service
open-rfcopen-rfcAn SDK-free TypeScript and JavaScript client for SAP classic synchronous RFC on Node.js, with no native addon and no runtime dependencies, that works as a drop-in under @sap/cds-rfc through an npm override.independent, cap
SDK-free TypeScript client for SAP synchronous RFC on Node.js
The maintainer states 0.x is beta with no production SLA, and scopes support deliberately narrowly: direct application-server transport, classic serialization and password authentication on S/4HANA 2023 and NetWeaver 7.50. Anything outside that is untested rather than unsupported.
cap-rfccap-rfcCalling ABAP function modules over RFC from a CAP service.independent, cap
Calling ABAP function modules over RFC from a CAP service
Neither the package manifest nor the repository tree declares a licence.
Introducing open-rfc: Calling SAP RFC from Node.js Without the SDKIntroducing open-rfc: Calling SAP RFC from Node.js Without the SDKopen-rfc is a TypeScript and JavaScript RFC client for Node.js with no runtime dependencies and no SAP NetWeaver RFC SDK, written after SAP archived node-rfc and PyRFC and while the connector below @sap/cds-rfc needs an S-user, an SAP Build Code licence and a private registry. The history of RFC connectivity from Node.js is the first half; the second shows the package on its own, as an npm alias for node-rfc, and through an npm override as the connector below an unchanged @sap/cds-rfc. The 0.2.3 beta stops at direct application-server connections with password authentication and classic Unicode RFC: no message-server load balancing, SNC, tRFC, qRFC, bgRFC or server mode.published 2026-08-10
Service compositionSAP only
@sap/cds@sap/cdsThe CAP Node.js runtime, which compiles the CDS model, serves the services declared in it, answers generic requests before any handler runs, and loads every cds-plugin.sap official, cap
CAP Node.js runtime
@sap/cds-common-content@sap/cds-common-contentISO-standard content for CAP's common definitions — countries, languages, currencies and timezones — so a project does not seed those tables itself.sap official, cap
ISO content for CAP's countries, languages, currencies and timezones
cap-cross-containercap-cross-containerA sample of five CAP services reading each other's HANA tables across HDI containers, with the grantor service key turned into a user-provided service.independent, cap
CAP services reading each other's HANA tables across HDI containers
Neither the package manifest nor the repository tree declares a licence.
capire/bookstorecapire/bookstoreA composite application assembled from separately deployed services — bookshop, reviews, orders and a common content package — rather than one project with more folders in it.sap official, cap
Composite CAP app from separately deployed services
xtravelsxtravelsA travel-booking application built on the master data that xflights publishes, composing another package's schema into its own rather than owning master data itself.sap official, cap
CAP travel-booking app built on xflights master data
Service integrationSAP and community
@sap/cds@sap/cdsThe CAP Node.js runtime, which compiles the CDS model, serves the services declared in it, answers generic requests before any handler runs, and loads every cds-plugin.sap official, cap
CAP Node.js runtime
@sap/cds-dk@sap/cds-dkThe command line client and development toolkit for CAP projects, with the commands cds build, cds deploy, cds watch and cds add among them.sap official, cap
Command line client and development toolkit for CAP
capire/s4capire/s4A pre-built integration package for SAP S/4HANA, holding the imported service definitions a CAP project would otherwise generate for itself.sap official, cap
Prebuilt SAP S/4HANA integration package for CAP projects
cds-data-federationcds-data-federationA data federation plugin for SAP CAP applications that declares delegation, caching and replication on a consumption view through CDS annotations, instead of hand-written handlers.independent, cap
Data federation for CAP via delegation, caching and replication
cap-openaicap-openaiTwo actions on one CAP service that reach OpenAI's chat completions endpoint by two routes: the openai npm client with the key from the environment, and a CAP remote service of kind: rest that goes through a destination in production.independent, cap
CAP service actions calling OpenAI chat completions two ways
Neither the package manifest nor the repository tree declares a licence.
xflightsxflightsA reuse package serving master-data entities (Airlines, Airports and Flights) as a service that other CAP applications compose into their own data model.sap official, cap
CAP reuse package serving Airlines, Airports and Flights data
xtravelsxtravelsA travel-booking application built on the master data that xflights publishes, composing another package's schema into its own rather than owning master data itself.sap official, cap
CAP travel-booking app built on xflights master data
The ECC-to-CAP Starter KitThe ECC-to-CAP Starter KitA Devtoberfest 2026 session that builds a CAP service and a Fiori elements list report over an SAP ECC gateway service, on the argument that the CAP project, its contract and its UI survive a later move to SAP S/4HANA while the APIs behind them change. The service integration edge is the body of the demo: the metadata of the ECC flight service is saved as an EDMX file, imported with cds import so the model holds the structure and none of the data, projected read-only into a flight service, and one line of handler code forwards each read to ECC, with filtering, sorting and paging translated down to the older OData version the system speaks. The SAP Destination service edge covers the on-premise destination and the additional properties the walkthrough insists on, and the SAP Business Application Studio edge covers the full-stack dev space, the CAP project wizard, the service center plugin for picking up another OData service, and cds watch run under the profile that uses those credentials.published 2026-10-09