BrowseSAP Cloud Application Programming Model
Everything in CAP
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Group by: Capability
EntryBySignalsLast activity
Change promotionSAP only
git-env-branchesgit-env-branchesA command line that shows, for a list of feature branches, which environment branches such as DEV, ACC and master each one has been merged into.independent, general
Shows which feature branches reached which environment branch
A team that does not keep one long-lived branch per environment has no environment branches for it to compare feature branches against. What it reports is the merge state of branches in Git, so it says nothing about whether a merged change has been built or deployed to the environment.
ConfigurationSAP 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
com.sap.cds:cds-feature-cloudfoundrycom.sap.cds:cds-feature-cloudfoundryA CAP Java feature that reads the environment variables of SAP BTP, Cloud Foundry at start-up and resolves bound service credentials from them, so the other features find their bindings.sap official, cap
Reads bound service credentials on SAP BTP, Cloud Foundry for CAP Java
com.sap.cds:cds-feature-k8scom.sap.cds:cds-feature-k8sA CAP Java feature that reads the service bindings the SAP BTP Operator writes on Kyma runtime at start-up, replacing the removed cds.environment.k8s property.sap official, cap
Reads SAP BTP Operator service bindings on Kyma for CAP Java
com.sap.cds:cds-services-bomcom.sap.cds:cds-services-bomThe Maven bill of materials for CAP Java, pinning every com.sap.cds module in a release, from the API and core runtime to the Spring Boot starters and the CQN engine, to the same version.sap official, cap
Maven bill of materials pinning CAP Java module versions
AI needs a foundation: A map of the plug-in ecosystem for CAPAI needs a foundation: A map of the plug-in ecosystem for CAPA map of the plug-ins for CAP (@sap/cds), official, community and independent, drawn across regions such as integration, performance and tooling, so that a team can see what exists to reuse and what it would have to build: the question plugin authoring answers from the other side. SAP's abstract places CAP at the centre of its AI strategy, with model context protocol support, and the map is offered as the foundation under that. A TechEd 2026 session (Tuesday 27 October, Community Theater, Berlin), presented by Mike Zaschka, written here from SAP's abstract; the recording is not yet published.
CAP Developers - Call to Action to mitigate and Apply Solution provided in SAP Note 3747787CAP Developers - Call to Action to mitigate and Apply Solution provided in SAP Note 3747787Four malicious npm package versions published on 29 April 2026 that exfiltrate credentials and propagate into adjacent repositories, and what a CAP developer should check. A security advisory rather than a technique, and dated precisely for that reason.Yogananda, published 2026-05-01
CAP Heaven? Not Yet — But You Can See It from HereCAP Heaven? Not Yet — But You Can See It from HereAn assessment from someone with Java, Azure and AWS behind them as well as ABAP and Fiori, which is a rarer vantage point than it sounds. The title is the verdict.published 2026-02-07
CAP is important because it's not importantCAP is important because it's not importantAn essay rather than a technique: what CAP actually is, what it gives you, and the case for treating it as foundational precisely because it is not the interesting part of an application. Written in 2019, when that argument still had to be made, and the title is the argument. Also recorded as a Tech Aloud podcast episode and a CodeTalk, both linked from the post.published 2019-11-06
CAP, RAP, or Both: Stop Hiding Behind 'It Depends'CAP, RAP, or Both: Stop Hiding Behind 'It Depends'Opens by refusing the answer every other post on this gives — "both are complementary, choose based on context" — and then commits to a framework, including the parts usually left out: the staffing bias behind the decision, and what to do about a landscape with thousands of Z-objects. Argument, not tutorial.published 2026-04-09
CAP: The Road Ahead - Simplicity in an AI EraCAP: The Road Ahead - Simplicity in an AI EraDevtoberfest 2026 session CAP10, from the head of SAP's Cloud Application Programming Model: forty minutes of live building rather than slides, on the argument that the cheapest code in an AI project is code nobody has to generate. Claude Code builds an invoice-matching workspace from cds init onwards, and each step is one the framework answers rather than the agent: a 42-line domain model that @sap/cds serves as OData and Fiori elements with a status flow, data privacy and change-tracking annotations that produce audit log entries in the console and would reach the SAP Audit Log service once deployed, an imported S/4HANA supplier data product, and semantic matching from a local embedding model after @cap-js/ai is added. The last three steps are annotations: @mcp beside @odata turns the service into an MCP server that a second Claude session queries through @cap-js/mcp, an agent annotation adds the A2A protocol with an agent card and an audit log entry for the agent task, and a skill file gives the agent the matching policy.SAP Developers, published 2026-09-25
Declarative Programming in CAP: Less Code, More ValueDeclarative Programming in CAP: Less Code, More ValueAn argument for annotations over handlers, made from the case where it is most obvious: repetitive validation logic that could be declared instead of written. Describes what you want rather than how to get it, and lets the runtime decide the how.published 2026-02-05
Don't "let it crash", is this the new CAP guideline?Don't "let it crash", is this the new CAP guideline?Dinu traces a change in error handling in CAP's Node.js runtime: @sap/cds@8.2.0 adds a cds.server.shutdown_on_uncaught_errors config flag, defaulting to true, but invoking an operation with an undefined variable no longer takes the server down, with or without the flag, where the same code crashed it on cds@6 and cds@7, and the author notes the old behaviour was already missing in cds@8.1. It still crashes with features.odata_new_adapter turned off to use the old OData parser, so it is the new OData adapter, like the REST adapter before it, that answers an uncaught error with a 500 instead of taking the process down.Dinu, published 2024-09-06
Everything new: Try out the latest features in CAPEverything new: Try out the latest features in CAPCAP (@sap/cds) gains the features this hands-on session works through: declarative constraints, which is the input validation concern, status flows as status transition flows, a cds REPL, extensibility through @sap/cds-oyster, and HCQL, which SAP's abstract calls CAP's native query-over-HTTP protocol, after an opening stretch of AI-driven app development. The abstract names the features and stops there; what each one does is not described. A TechEd 2026 hands-on session (Wednesday 28 October, Berlin), presented by Daniel Hutzel, Daniel Schlachter, Marc Huber and Tim Back, written here from SAP's abstract; the recording is not yet published.
Getting started with cds.ql in NodeJS for CAP - 101 on how to query dataGetting started with cds.ql in NodeJS for CAP - 101 on how to query dataWalks through cds.ql, the query API @sap/cds gives a Node.js CAP service's custom handlers, with worked SELECT, UPDATE, DELETE and INSERT examples against a sample schema — filters, AND/OR conditions, column projections, ordering, limiting, grouping and joining two entities through a schema view. An added correction notes that cds.tx(req) is no longer needed to run a query in newer CAP versions, contradicting the post's own original guidance.published 2022-06-21
Hello React & Vue : SAP CAP’s New UI Layer is Here!Hello React & Vue : SAP CAP’s New UI Layer is Here!CAP gaining a UI layer for React and Vue, which changes the default assumption that the front end is UI5. Short, and the significance is larger than the length.Yogananda, published 2026-06-25
SAP CAPv7 - Node.js Highlights and ExperiencesSAP CAPv7 - Node.js Highlights and ExperiencesAn account of upgrading a 100+ table CAP Node.js project from v6 to v7, working through breaking changes in @sap/cds 7: event handlers now always receive an array, service paths move under /odata/v4/... unless serve_on_root is set, and cds-serve replaces cds run. It goes deepest on the GraphQL plugin, @cap-js/graphql: the /graphql endpoint it serves, Composition results wrapped in a nodes connection, and offset-based pagination reached through OData's top and skip rather than GraphQL's own limit and offset.published 2023-08-03
SAP Cloud Application Programming Model (CAP) - start hereSAP Cloud Application Programming Model (CAP) - start hereThe orientation post for CAP, published in 2018 and revised in 2020 and again in 2021 with help credited to Iwona Hahn — which is the unusual part: a starting-point index that was maintained rather than left to rot, and says so at the top. Read as the shape of what a newcomer was pointed at, and as a marker of how much of that changed inside three years.published 2018-10-10
Tips for running CAP nodejs in SAP BTPTips for running CAP nodejs in SAP BTPDeliberately not a summary of capire: the author says up front that nothing here repeats the documented best practices, and the subject is configuration for running cloud-natively rather than correctly. Examples target Cloud Foundry, with the claim that they hold for Kyma too.published 2023-06-21
Tips for running CAP nodejs in SAP BTP
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects Runnable code.
What's new in SAP Cloud Application Programming Model – January 2026What's new in SAP Cloud Application Programming Model – January 2026December and January together: the new @assert feature, revised documentation, CDS editor work, and Kyma deployment additions.published 2026-02-09
What's new in SAP Cloud Application Programming Model – November 2025What's new in SAP Cloud Application Programming Model – November 2025The November edition, led by the Status Transition Flows feature presented at reCAP 2025.published 2025-12-08
What's new in SAP Cloud Application Programming Model – September 2025What's new in SAP Cloud Application Programming Model – September 2025The monthly release communication for CAP itself, and this edition carries the MCP servers and the Application Frontend Service integration. Kept because a dated list of what shipped when is the only record of that; three editions are indexed here rather than the whole run.published 2025-10-14
Deployment and operatorSAP only
@sap_oss/vscode-mta-tools@sap_oss/vscode-mta-toolsVS Code Multi-Target Application toolssap official, cap
VS Code Multi-Target Application tools
Health checksSAP 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
#BTP #SAPCAP: Quirky Nuggets (N05-N06)#BTP #SAPCAP: Quirky Nuggets (N05-N06)On SAP BTP, Cloud Foundry Runtime, a one-shot PostgreSQL db-deployer app can be restarted by the platform's default port-type health check inside its 60-second timeout, re-running the deploy and duplicating data in the PostgreSQL database; setting health-check-type to process or http, via cf commands or the app's mta.yaml parameters, avoids it. In CAP, a remote service's entities are imported and consumed through cds.connect.to and queried via a projection, but its functions and actions cannot be projected: they must be redefined in the consuming service's own interface, with the handler forwarding the call to the remote proxy.published 2023-07-27
LoggingSAP only
@cap-js/audit-logging@cap-js/audit-loggingIntegration with the SAP Audit Log service, so operations on personal data are recorded in the form an auditor expects without the application writing the entries.sap official, cap
CAP integration with the SAP Audit Log service
com.sap.cds:cds-services-bomcom.sap.cds:cds-services-bomThe Maven bill of materials for CAP Java, pinning every com.sap.cds module in a release, from the API and core runtime to the Spring Boot starters and the CQN engine, to the same version.sap official, cap
Maven bill of materials pinning CAP Java module versions
SAP Application Logging service for SAP BTPSAP Application Logging service for SAP BTPCollects an application's log lines from Cloud Foundry or Kyma into a searchable Kibana, for the retention the plan sets.sap official, btp
Collects Cloud Foundry or Kyma logs into a searchable Kibana
cap-java-snippetscap-java-snippetsTen short CAP Java references, one per document: handler phases, CQN analysis, CQL, error handling, actions, authentication, logging, remote services, hybrid runs and the test layers.independent, cap
Ten short CAP Java references, one document per topic
From Application Logging to Cloud Logging: Service Innovation GuideFrom Application Logging to Cloud Logging: Service Innovation GuideSAP Cloud Logging replaces SAP Application Logging service, moving each customer from a shared multitenant stack to a dedicated, fully isolated one, and this guide sets out what changes with the move: a deployment per compliance region instead of per Cloud Foundry landscape, SAML/IDP-based authentication instead of Cloud Foundry-bound auth, retention that is configurable instead of fixed at seven days, and hourly capacity-unit pricing instead of fixed-size monthly plans. It also states the deprecation timeline for logging on BTP: SAP Application Logging closes to new or renewed CPEA contracts after 2025-07-31, while contracts signed before that date keep their entitlement until their next renewal.Hariharan-Gandhi, published 2024-11-22
How to implement SAP BTP Audit log service in a CAP ApplicationHow to implement SAP BTP Audit log service in a CAP ApplicationThe setup half: binding the BTP Audit Log service to a CAP application and getting the annotated path working, which is the step before anything custom becomes a question.KrishnaSharma7, published 2025-01-01
How to implement SAP BTP Audit log service in a CAP Application
@cap-js/audit-logging has been through 2 major lines since this was published: 0.9 (2025-06), 1 (2025-07). Affects A recipe.
Implementing Custom Audit Logging in SAP CAP ApplicationsImplementing Custom Audit Logging in SAP CAP ApplicationsWhere the annotations stop. CAP logs personal-data operations automatically once a model is annotated; this is about the events that are not that — an unauthorised access attempt, a business action somebody wants a trail for — and what writing those yourself involves.gopalanand, published 2025-10-09
SAP Cloud Logging Serviceでコンテナメトリクスを監視するSAP Cloud Logging Serviceでコンテナメトリクスを監視するIn Japanese. Container metrics for a CAP Node.js application into SAP Cloud Logging Service, and the reason it exists is that the obvious route does not apply: Spring Boot Actuator covers the Java side, and Node has no equivalent, so the author reaches for Telegraf instead. The procedure is deliberately independent of application logic — bind the instance, add a startup script and a config file — so it works against an application you already have.kyoneo, published 2024-03-26
Platform migrationSAP only
xsa-cap-migrationxsa-cap-migrationA migration guide that moves the hana-shine-xsa demo application from the XS Advanced programming model to the Cloud Application Programming Model on SAP HANA Cloud.sap official, cap
Guide migrating the hana-shine-xsa demo from XS Advanced to CAP
Directed at single-tenant applications, which the guide states as its scope. The migration path it uses also has no option to select individual containers, so it migrates every container in the given space.
xsa-cap-migration-using-basextnxsa-cap-migration-using-basextnA step-by-step guide to migrating an XS Advanced application's database artefacts to the Cloud Application Programming Model with the SAP HANA Application Migration extension.sap official, cap
Guide to migrating XS Advanced database artefacts to CAP
xsc-cap-migrationxsc-cap-migrationA step-by-step guide to migrating an XS Classic application's database artefacts, packaged as a delivery unit or a package, to the Cloud Application Programming Model.sap official, cap
Guide to migrating XS Classic database artefacts to CAP
Directed at single-tenant applications, which the guide states as its scope. Migration of the whole delivery unit or package fails if any source file has errors; the README gives JavaScript files containing unknown characters as its example.
Modern integration at TÜV Rheinland: APIs, events and cloud transformationModern integration at TÜV Rheinland: APIs, events and cloud transformationTÜV Rheinland's migration from SAP Process Orchestration to SAP Integration Suite with API-led connectivity and event-driven architecture, told through business cases. The abstract names what was used: the SAP Integration Suite, Event Mesh capability, API Management, generative AI for faster development and SAP Cloud ALM for monitoring. It states nothing about how any of them was used, so the edges rest on the names and on the Platform migration the story starts from. A TechEd 2026 session (Wednesday 28 October, Berlin), written here from SAP's abstract; the recording is not yet published.
Modernize your database landscape with SAP HANA CloudModernize your database landscape with SAP HANA CloudWhy to move a database estate to SAP HANA Cloud, and the migration tools and services for doing so, which is the platform migration concern. SAP's abstract is one sentence and names none of the tools. A TechEd 2026 session (Thursday 29 October, Berlin), presented by Niklas Siemer and Roman Belosludtsev, written here from SAP's abstract; the recording is not yet published.
Product Updates for SAP Build Code – June 2025 EditionProduct Updates for SAP Build Code – June 2025 EditionThe Q2-2025 release of SAP Build Code adds a Joule-based SAP HANA Application Migration Assistant extension that automates converting XS Classic and XS Advanced service-layer artifacts — XSJSLIB, XSODATA and XSJS — into CAP service definitions and handlers on SAP HANA Cloud, extending the existing database migration assistant with generative AI. It walks through the "XS Classic to CAP" and "XS Advanced to CAP" templates that trigger the conversion.published 2025-06-27
CI/CD pipelinesSAP only
@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
audit-summaryaudit-summaryA command line that summarises npm audit results by root dependency, with severity counts, current against latest versions and thresholds that exit with code 1.independent, general
Groups npm audit findings by root dependency, with failing thresholds
It audits through npm: a project that resolves its dependencies with another package manager, or has no `package.json`, has nothing for it to run. What it reports is what `npm audit` knows, so a vulnerability outside the npm advisory data is not in its table.
cf-setupcf-setupGitHub Action that sets up the Cloud Foundry CLI in a workflow.sap official, cap
GitHub Action setting up the Cloud Foundry CLI
SAP Continuous Integration and DeliverySAP Continuous Integration and DeliveryA BTP service that runs SAP's predefined CI/CD pipelines for designated SAP development projects, building, testing and deploying the changes pushed to a connected Git repository.sap official, btp
Predefined CI/CD pipelines for SAP development projects
cap-github-actioncap-github-actionA CAP project whose MTA build and Cloud Foundry deploy run as two jobs of one GitHub Actions workflow, with the Cloud Foundry credentials read from repository secrets.independent, cap
CAP project built and deployed to Cloud Foundry by GitHub Actions
cap-java-childcap-java-childThe consumer side of a promotion model for CAP Java: a parent pom pinned to a fixed version, Renovate opening the bump as a pull request, the application's own tests as the gate, and auto-merge only on green.independent, cap
Consumer side of a CAP Java parent pom promotion model with Renovate
Neither the package manifest nor the repository tree declares a licence.
cap-java-parent-pom-samplecap-java-parent-pom-sampleA Maven parent pom published to GitHub Packages that pins cds-services-bom, the Spring Boot BOM and a shared CAP Java plugin, so a child application names the parent coordinate and no versions of its own.independent, cap
Maven parent pom pinning cds-services-bom and Spring Boot for CAP Java
Neither the package manifest nor the repository tree declares a licence.
DevOps with SAP BTPDevOps with SAP BTPHow SAP frames a delivery pipeline for applications on BTP Cloud Foundry: continuous integration through the SAP Continuous Integration and Delivery service and its pipeline templates for CAP and Fiori, transport and change management across environments, and a section on reasonable alternatives for teams with existing CI infrastructure. Culture first, tools second, and explicit that the setup differs on other BTP environments.published 2025-06-06
Get Started with an SAP Cloud Application Programming Model Project in SAP Continuous Integration and DeliveryGet Started with an SAP Cloud Application Programming Model Project in SAP Continuous Integration and DeliveryWiring a CAP project into SAP's hosted CI/CD service, which is the pipeline you get without assembling one.SAP
SAP BTP Showcase – SAP Continuous Integration and Delivery (SAP CI&D) for SAP HANA CloudSAP BTP Showcase – SAP Continuous Integration and Delivery (SAP CI&D) for SAP HANA CloudA pipeline for the database half of a CAP application, built with cds add pipeline — one command that writes a Jenkinsfile and a .pipeline folder — and then the mta module that makes a database change deploy itself.gcalixtos, published 2021-01-27
SAP BTP Showcase – SAP Continuous Integration and Delivery (SAP CI&D) for SAP HANA Cloud
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects Runnable code.
Plugin authoringSAP only
@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
com.sap.cds:cds-services-bomcom.sap.cds:cds-services-bomThe Maven bill of materials for CAP Java, pinning every com.sap.cds module in a release, from the API and core runtime to the Spring Boot starters and the CQN engine, to the same version.sap official, cap
Maven bill of materials pinning CAP Java module versions
@capire/data-viewer@capire/data-viewerA CAP plugin that adds a generic data browser to an application, written to show how a plugin is built rather than to be depended on, and used in the bookstore sample.sap official, cap
Sample CAP plugin adding a generic data browser
Its own readme carries a caution: this is a sample, not intended for production use. It exists to demonstrate the plugin mechanism, and the bookstore sample is where it is used.
commoncommonA CAP plugin that extends @sap/cds/common with enhanced reuse data in .csv, published as a sample of how to write a CAP plugin rather than as something to run in production.sap official, cap
Sample CAP plugin extending @sap/cds/common with reuse data
ordersordersA sample reuse service for managing orders, with its own Fiori UI, written to show how a CAP plugin is built and consumed: embedded in the consuming application or run standalone over OData.sap official, cap
Sample CAP reuse service for orders, with a Fiori UI
Not in production. SAP states it is just a sample, not optimised for performance or security.
orders-javaorders-javaA sample reuse service for managing orders, with its own Fiori UI, in the capire/orders-java repository; its README is the one orders carries and names no runtime.sap official, cap
Sample CAP Java reuse service for orders, with a Fiori UI
Not in production. SAP states it is just a sample, not optimised for performance or security.
reviewsreviewsA sample reuse service for managing reviews, with its own Fiori UI, written to show how a CAP plugin is built and consumed, and used in the bookstore sample.sap official, cap
Sample CAP reuse service for reviews, with a Fiori UI
Not in production. SAP states it is just a sample, not optimised for performance or security.
reviews-javareviews-javaA sample reuse service for managing reviews, with a Vue UI, in the capire/reviews-java repository, written to show how a CAP plugin is built and used in the bookstore sample.sap official, cap
Sample CAP Java reuse service for reviews, with a Vue UI
Not in production. SAP states it is just a sample, not optimised for performance or security.
SAP-samples/cap-tour-hands-onSAP-samples/cap-tour-hands-onAn eight-exercise tour of CAP features: mocked auth and messaging, the cds REPL, plugin authoring, status-transition flows, testing, declarative constraints and API client packages.sap official, cap
Eight-exercise tour of CAP features, from mocking to plugins
shared-dbshared-dbA CAP sample showing how one domain model is shared across several apps that all rely on it, used to deploy microservices against a shared database, with capire's Microservices with CAP guide as background.sap official, cap
CAP sample sharing one domain model and database across apps
Not in production. SAP states it is just a sample, not optimised for performance or security.
shared-db-javashared-db-javaA CAP sample showing how one domain model is shared across several apps that all rely on it, in the capire/shared-db-java repository, with capire's Microservices with CAP guide as background.sap official, cap
CAP Java sample sharing one domain model across several apps
Not in production. SAP states it is just a sample, not optimised for performance or security.
AI needs a foundation: A map of the plug-in ecosystem for CAPAI needs a foundation: A map of the plug-in ecosystem for CAPA map of the plug-ins for CAP (@sap/cds), official, community and independent, drawn across regions such as integration, performance and tooling, so that a team can see what exists to reuse and what it would have to build: the question plugin authoring answers from the other side. SAP's abstract places CAP at the centre of its AI strategy, with model context protocol support, and the map is offered as the foundation under that. A TechEd 2026 session (Tuesday 27 October, Community Theater, Berlin), presented by Mike Zaschka, written here from SAP's abstract; the recording is not yet published.
BTP CAP : Custom plugin to separate generic change log capture logicBTP CAP : Custom plugin to separate generic change log capture logicWalks through building a custom [CAP](ecosystem:cap) plugin that centralises change-log capture: on cds.once('served') it collects entities annotated @audit, then hooks srv.before('UPDATE') to read the existing record, diff it field by field against the incoming payload, and record old/new values with the user and timestamp. It also documents a cds build failure packaging the plugin's own directory into gen/srv for MTA deployment, fixed by adding it as a copyfiles build-parameter step in mta.yaml.sreehari_vpillai, published 2023-05-10
Create your first CAP pluginCreate your first CAP pluginA step-by-step guide to the cds-plugin.js extension point: scaffold a package, add an index.cds for shared model artifacts, and test it locally against a throwaway CAP project before publishing to npm, with a separate section on building the same plugin in TypeScript and compiling it with tsc. Points to the author's own cds-plugin-handlers and ui5-cap-serverside-rendering-plugin as worked examples.published 2024-12-09
DRY CAP – Making Sustainable Solutions Through PluginsDRY CAP – Making Sustainable Solutions Through PluginsA Devtoberfest 2026 building-apps session on packaging the things you would otherwise write twice, from in-house API clients and shared data models to validation logic, as a CAP plugin. The presenter builds one live: a cds-plugin.js next to package.json is what makes CAP notice the plugin at all, an index.cds carries a reusable user context and service that the consuming application projects into its own and protects there, and the plugin registers an Express middleware at a chosen step of the bootstrap to put user properties on the request. A feature-flagging plugin his team already uses closes it, and the whole walkthrough is the edge to Plugin authoring.SAP Developers, published 2026-10-02
How to build reusable plugin components for CAP Java applicationsHow to build reusable plugin components for CAP Java applicationsA companion to Daniel Schlachter's Reusable components for CAP with cds-plugin, showing the same mechanism on CAP Java: a plugin ships as its own Maven artifact with an event handler and a CdsRuntimeConfiguration implementation, registered through the JDK's ServiceLoader rather than any CAP-specific wiring. The walkthrough builds a cds-emoji-plugin-java jar that decorates @emoji-annotated fields on read, installs it to the local Maven repository, and adds it as a runtime dependency to a cds init --add java bookshop application. It argues the plugin mechanism was not new to CAP Java, just previously undocumented.robinjayasinghe, published 2023-05-16
Reusable components for CAP with cds-pluginReusable components for CAP with cds-pluginThe post that taught the mechanism, and it teaches it by picking a requirement small enough to be absurd: every string a service returns should end in a random emoji. Working through that on the bookshop example leaves nothing to argue about except the plumbing, which is the point — what a cds-plugin is, where it hooks in, and why packaging it beats copying it into the next project. Vinícius Barrionuevo credits this post as the thing that gave him the idea for sap-cap-sdm-plugin, and it is hard to read the plugin ecosystem in this graph without it.published 2023-04-30
SAP AI Services - DOX - Gen AI with SAP CAP Plugin - Part 3SAP AI Services - DOX - Gen AI with SAP CAP Plugin - Part 3Building on Reusable components for CAP with cds-plugin by Daniel Schlachter, this part walks through a custom CAP plugin — a cds-plugin.js plus a lib_cap_dox.js helper — that authenticates against SAP's Document Information Extraction (DOX) service and calls its schema and job-status APIs to fill an entity from extracted document fields. It covers reading the service key from Cloud Foundry (cf service-key) for the OAuth token endpoint, and dynamically mapping DOX's header and line-item output onto CAP entity properties.sabarna17, published 2024-06-11
What's in Daniel Hutzel's brain?What's in Daniel Hutzel's brain?A Devtoberfest 2026 session in the building-apps track, in which Daniel Hutzel and DJ Adams work through what the CAP team is building for agents. A bookshop gets an MCP endpoint beside its OData one from a single annotation, with the plugin writing the coding agent's configuration itself; in the xt-travels sample five services that know nothing about each other are served over MCP and an agent does the orchestration the hand-built UI and its value helps used to do. Hutzel then annotates a service as an agent so the ReAct loop and the choice of model move into the CAP service, and finally drops MCP for a skill that teaches the agent CQL instead, which is where the edges to Serve your application over MCP, Agent tooling and Agent guidance come from. The mechanism under all of it, a plugin file in the package root and event handlers that can be added to any CAP service, is the edge to Plugin authoring.published 2026-10-02