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Mobile First - Making the SAP IAS-based Proof Key for Code Exchange (PKCE) great again! 🎉Mobile First - Making the SAP IAS-based Proof Key for Code Exchange (PKCE) great again! 🎉Proof Key for Code Exchange against Identity Authentication, revisited by the author after an earlier post on the same subject — the flow that lets a mobile or single-page client authenticate without a secret it cannot keep. Sample repository under SAP-samples.martinfrick, published 2023-09-21
SAP CAP JWT Token Flow in codeSAP CAP JWT Token Flow in codeOne question, answered precisely: at what point does the JWT exist and how does it end up on req.headers.authorization in a CAP handler. XSUAA issues it and the approuter carries it, and the post follows it through both.sandeepmalhotra, published 2023-04-03
SAP CAP JWT Token Flow in code
Authentication changed in CAP Java 3.0.1, 2024-07-26. Affects Runnable code.
Securing CAP Applications with SAP Cloud Identity Services and AMSSecuring CAP Applications with SAP Cloud Identity Services and AMSIdentity Authentication and AMS together as the current answer for a CAP application — authentication, single sign-on and the identity lifecycle on one side, policies on the other.gopalanand, published 2025-12-04
Simplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightSimplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightClient-certificate login to BTP works locally and has historically not worked in automated pipelines. The post uses Playwright's then-new client certificate support to close that, which is a sideways use of a browser automation library and the reason it is worth recording — the constraint it removes is a CI constraint, not a testing one.published 2024-11-08
Understanding security approaches in SAP CAP using XSUAA in node.js flavor and MTA.Understanding security approaches in SAP CAP using XSUAA in node.js flavor and MTA.The long version, from the MTA project outward: what the deployment descriptor has to contain, how the authentication flow actually runs, and then the npm modules doing the work — @sap/xssec and @sap/xsenv named and explained rather than left as dependencies. Old, and the module names have moved on, but the flow it draws has not.balbinosoares, published 2020-03-16
Understanding security approaches in SAP CAP using XSUAA in node.js flavor and MTA.
Authorization has changed twice since this was published, most recently in CAP Java 3.7.1, 2025-01-30. Affects A recipe, Runnable code.
Dynamic authorisation with user attributes in SAP CAP and AMSDynamic authorisation with user attributes in SAP CAP and AMSThe same argument as the XSUAA-to-AMS piece, opened from a concrete failure: an acquisition puts 500 users on sales data restricted by division, and role-based access control answers it with Sales_Manager_EMEA, Sales_Manager_APAC and so on until the roles multiply past managing. Attribute-based authorisation replaces the set with one policy carrying a restriction, and the post walks through defining it in AMS against Cloud Identity Services. The clearest statement of role explosion among the three AMS pieces here.pedro_iranzo, published 2026-05-04
From XSUAA to AMS: Architecting S4HANA CAP Extensions with Policy-Based AuthorizationFrom XSUAA to AMS: Architecting S4HANA CAP Extensions with Policy-Based AuthorizationWhy scope-based authorization runs out, argued from enterprise extension work rather than from the documentation: XSUAA handles roles well, but real requirements are business-context restrictions — country, company code, organisational unit — and expressing those as scopes does not scale. The migration to policy-based authorization is presented as an architectural move for S/4HANA extensions rather than a configuration change.Avinash Vaidya, published 2026-05-27
How to Control the Visibility of CRUD and Custom Actions in Fiori Elements Based on AuthorizationHow to Control the Visibility of CRUD and Custom Actions in Fiori Elements Based on AuthorizationHiding Create, Edit and custom action buttons according to what the user may actually do — the join between the authorisation model and the annotations, which is where the two usually fail to agree and the UI offers something the service will refuse.published 2025-05-14
How to Restrict CRUD Operations in SAP CAPM Using @Capabilities, @readonly and Test APIs with .httpHow to Restrict CRUD Operations in SAP CAPM Using @Capabilities, @readonly and Test APIs with .httpEntities are exposed with full CRUD by default, and this is how to take operations away again — @Capabilities for Insert, Update and Delete individually, @readonly for the blunt version. Tested with .http files rather than a UI, which keeps the check on the service.DeepaRagho, published 2026-05-22
Qualtrics integration with domain based authorization in CAP project on HANA cloudQualtrics integration with domain based authorization in CAP project on HANA cloudSurveys pulled from Qualtrics into a CAP application in real time, with the twist in the title: authorisation decided by the user's domain rather than by a role collection. A pattern that comes up whenever the audience is wider than the tenant.former_member69893, published 2022-09-30
Qualtrics integration with domain based authorization in CAP project on HANA cloud
Authorization has changed twice since this was published, most recently in CAP Java 3.7.1, 2025-01-30. Affects Runnable code.
SAP BTP XSUAA Security Configuration Comparison: Attribute-Based vs. Authority-Based ApproachesSAP BTP XSUAA Security Configuration Comparison: Attribute-Based vs. Authority-Based ApproachesTwo shapes of the same xs-security.json set against each other, with the resulting JWT printed for both. The consequence for application code is what makes it worth reading: under the attribute-based configuration a CAP handler reads req.user.attr.department, and under the authority-based one it does not, because the attribute is not there. Carries a migration guide between the two.rajeshkputumbaka, published 2026-02-18
Securing CAP Applications with SAP Cloud Identity Services and AMSSecuring CAP Applications with SAP Cloud Identity Services and AMSIdentity Authentication and AMS together as the current answer for a CAP application — authentication, single sign-on and the identity lifecycle on one side, policies on the other.gopalanand, published 2025-12-04
Understanding security approaches in SAP CAP using XSUAA in node.js flavor and MTA.Understanding security approaches in SAP CAP using XSUAA in node.js flavor and MTA.The long version, from the MTA project outward: what the deployment descriptor has to contain, how the authentication flow actually runs, and then the npm modules doing the work — @sap/xssec and @sap/xsenv named and explained rather than left as dependencies. Old, and the module names have moved on, but the flow it draws has not.balbinosoares, published 2020-03-16
Understanding security approaches in SAP CAP using XSUAA in node.js flavor and MTA.
Authorization has changed twice since this was published, most recently in CAP Java 3.7.1, 2025-01-30. Affects A recipe, Runnable code.
Using Postman for API Testing with XSUAAUsing Postman for API Testing with XSUAAA way to get a JWT without routing traffic through the approuter and picking the token out of it. The author walks the alternatives first — redirect through the router, intercept the token — and says what is wrong with each, before requesting the token from the service directly.mariusobert, published 2020-03-02
Why developers should care about credential-types for xsuaa?Why developers should care about credential-types for xsuaa?Rotating secrets, argued from a habit rather than a feature: the author names the practice implicit in many beginner tutorials — lifting a secret out of a binding to use it elsewhere — and notes CAP has features that make it unnecessary in development. Then the three credential types side by side, configured on a CAP application's uaa resource in mta.yaml and through a deployment extension.former_member2839, published 2022-07-05
Why developers should care about credential-types for xsuaa?
Authorization has changed twice since this was published, most recently in CAP Java 3.7.1, 2025-01-30. Affects A recipe, Runnable code.
XSUAA Local TestingXSUAA Local TestingAdding XSUAA to a CAP project two ways, and then the part that is usually missing: getting the authorisation to behave on a laptop rather than only after deployment. The default authentication mechanism is the easy half; testing it without a landscape is the reason this exists.ManasaManu, published 2024-10-17
XSUAA Local Testing
Authorization has changed twice since this was published, most recently in CAP Java 3.7.1, 2025-01-30. Affects A recipe, Runnable code.
New and improved: Change Tracking pluginNew and improved: Change Tracking pluginThe 2.0 announcement, and unusually candid about why there is a 2.0 at all: the plugin already existed and was, in the author's words, plagued by many issues. What it records is every insert, update and delete with the user and the timestamp, aimed at root-cause analysis and at detecting changes nobody authorised. Generally available as of this post, having been hinted at as beta in the April release notes.published 2026-06-12
New and improved: Change Tracking plugin
cds 2, line ended. Affects A recipe, Runnable code.
Elevating Data Privacy in SAP CAP based GenAI Applications with CAP LLM PluginElevating Data Privacy in SAP CAP based GenAI Applications with CAP LLM PluginThe question underneath the enthusiasm: what leaves your landscape when a prompt goes to a model. The plugin's answer is to anonymise the sensitive fields through HANA before the prompt is sent, and this is the post that explains why that is the design rather than an option.AkashAmarendra, published 2024-02-02
Extend SAP Cloud Application Programming Model(CAP) Validations with the CAPVAL PluginExtend SAP Cloud Application Programming Model(CAP) Validations with the CAPVAL PluginThe complaint first: the built-in annotations are good for data integrity and poor at telling the user what went wrong, and there is no way to reuse a rule. capval, the plugin the post announces, adds @validation.message alongside the standard annotations rather than replacing them, and @validation.handler for a check written as a class. Published in January 2024, before the 1.2.0 line the README now pairs with @sap/cds 8.0.0 and above; the two annotations it shows are the two the README still documents.published 2024-01-09
Configure an MCP Server Created from an HTTP EndpointConfigure an MCP Server Created from an HTTP EndpointDocuments configuring API Management’s HTTP-source MCP server tools, resources, prompts and policies. Resources are selected from GET operations and have URI templates/content types; prompts define User/Assistant messages with optional arguments, alongside MCP policy configuration.
Create an MCP Server for Enterprise AI AgentsCreate an MCP Server for Enterprise AI AgentsWraps the preceding supply-risk graph from API Composition as an MCP server in Integration Suite, with API Management activated as a prerequisite. The walkthrough selects retrieval tools, deploys on Integration Cell, publishes a product in Developer Hub, creates an agent subscription and invokes the tools in MCP Inspector; its companion tutorial uses mock backends.Shyam, published 2026-09-23
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.
#BTP #SAPCAP: Quirky Nuggets (N03-N04)#BTP #SAPCAP: Quirky Nuggets (N03-N04)Two unrelated findings in one post, which is the format of the series: the OData operators tried against a CAP service — with a schema of deliberately awkward types to try them on — and undeploying database artifacts, which is the half people hit in anger. Numbered N03 and N04 of a run that continues either side.Ajit_K_Panda, published 2023-06-05
#BTP #SAPCAP: Quirky Nuggets (N03-N04)
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects A recipe, Runnable code.
Build and deploy a CAP Project Node.js API with a SAP Fiori Elements UI and a managed approuter configurationBuild and deploy a CAP Project Node.js API with a SAP Fiori Elements UI and a managed approuter configurationGeneration and deployment in one piece, with the managed approuter rather than a standalone one — so the routing is configuration instead of a module, and the post covers what that changes at deploy time.jlong, published 2022-02-10
Build and deploy a CAP Project Node.js API with a SAP Fiori Elements UI and a managed approuter configuration
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
CAP on Kyma - Deploy your CAP apps to SAP BTP, Kyma RuntimeCAP on Kyma - Deploy your CAP apps to SAP BTP, Kyma RuntimeThe post that superseded the author's own earlier one, written for cds and cds-dk 6 when Kyma deployment became something the tooling did rather than something you assembled. The current reference of the several Kyma posts here.Uwe_Klinger, published 2022-07-12
CAP on Kyma - Deploy your CAP apps to SAP BTP, Kyma Runtime
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects A recipe, Runnable code.
cf-create-app: Create End-to-End apps and deploy to Cloud Foundry in minutescf-create-app: Create End-to-End apps and deploy to Cloud Foundry in minutesA generator from 2020 that goes further than scaffolding — an end-to-end application created and deployed to Cloud Foundry in one run. Predates most of what cds add now does.former_member604013, published 2020-07-29
cf-create-app: Create End-to-End apps and deploy to Cloud Foundry in minutes
Generators has changed twice since this was published, most recently in @sap/cds-dk 10.0.3, 2026-07-02. Affects A recipe, Runnable code.
Dynamic OData from "any" API through SAP BTP KymaDynamic OData from "any" API through SAP BTP KymaPutting an OData face on a third-party API by way of Kyma, so the SAP side of a landscape can consume something that was never built for it. The word dynamic is doing work in the title — the shape is not modelled in advance.Gunter, published 2021-09-09
Exploring Application Frontend Service: Deploying the UI of an MTA AppExploring Application Frontend Service: Deploying the UI of an MTA AppApplication Frontend Service, which arrived in May 2026 and overlaps the HTML5 Application Repository without replacing it. The post is careful about the difference — single-tenant, stand-alone, and no Work Zone integration yet — which is what you need to decide between them.MioYasutake, published 2025-07-12
From Concept to action: Hands-On with the CAP Operator and the Partner Reference ApplicationFrom Concept to action: Hands-On with the CAP Operator and the Partner Reference ApplicationThe CAP Operator applied to a real application rather than a sample of its own — SAP's Partner Reference Application, taken from plugin integration through containerisation to custom resources. The transition to CRDs is the part that repays attention: it is where the deployment stops being an mta and becomes Kubernetes.ChristianWeiss, published 2026-05-21
From R/3 ABAP to CAP/Fiori Elements on SAP BTP- DeploymentFrom R/3 ABAP to CAP/Fiori Elements on SAP BTP- DeploymentThe doing half: the steps and the code that got the application from the first post deployed and working. Shorter, and it assumes the argument has already been made.former_member231477, published 2021-04-30
From R/3 ABAP to CAP/Fiori Elements on SAP BTP- Deployment
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
SAP SuccessFactors extensibility easy with SAP BTP, Kyma runtimeSAP SuccessFactors extensibility easy with SAP BTP, Kyma runtimeSuccessFactors extensibility called directly from Kyma, with OAuth2SAMLBearerAssertion doing the identity part. Long, and code-first — the author leads with the sample rather than with the architecture.quovadis, published 2023-05-22
Speed up deployment for CAP using TurborepoSpeed up deployment for CAP using TurborepoImpatience as a method: minutes of waiting on MBT and cf deploy sent the author looking for alternatives. It is fair to MBT first — a wrapper doing the whole deployment in one go, creating services and applications along the way — before showing what Turborepo changes about the build half. The trade it makes is explicit rather than assumed.published 2024-12-06
Speed up deployment for CAP using Turborepo
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects Runnable code.
SQLite as database for a multi-target (/productive) CAP ApplicationSQLite as database for a multi-target (/productive) CAP ApplicationOpens with "Not recommended but possible", and then names the two cases where it is the right call anyway: a showcase, and a landscape with no HANA Cloud available. The caveat is the content.Christopher_Ketzler, published 2024-07-05
SQLite as database for a multi-target (/productive) CAP Application
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects A recipe, Runnable code.
Surviving and Thriving with the SAP Cloud Application Programming Model: Deployment to SAP BTP, Kyma runtimeSurviving and Thriving with the SAP Cloud Application Programming Model: Deployment to SAP BTP, Kyma runtimeAn episode of the author's #CAPTricks series, and it reads like one — long, opinionated, and organised around the things that actually go wrong on the way to a deployed CAP application rather than around the documented happy path.maxstreifeneder, published 2023-03-07
Surviving and Thriving with the SAP Cloud Application Programming Model: Deployment to SAP BTP, Kyma runtime
Deployment changed in @sap/cds-dk 8.9.0, 2025-03-31. Affects A recipe, Runnable code.
The new way to consume Service Bindings on Kyma RuntimeThe new way to consume Service Bindings on Kyma RuntimeService bindings on Kyma, which had until then been a Cloud Foundry idea — how a BTP service reaches a workload in Kubernetes, and what changes for an application that expects VCAP_SERVICES.Uwe_Klinger, published 2022-07-12
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.
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
Building a SaaS Multitenant Application Using SAP CAP Framework — Without a DatabaseBuilding a SaaS Multitenant Application Using SAP CAP Framework — Without a DatabaseMultitenancy with the database taken out, which is a useful way to see what is left: the approuter and its tenant host pattern, the XSUAA instance in shared tenant mode, and the SaaS Registry binding that makes a subscription happen. Everything here is subscription lifecycle and routing, so the parts that are usually entangled with HDI container provisioning are visible on their own.DebashishDas, published 2026-05-06
Developing CAP java/node.js mixed mono Multitenant SaaS Applications with Shared DatabaseDeveloping CAP java/node.js mixed mono Multitenant SaaS Applications with Shared DatabaseTwo CAP projects, one Java and one Node.js, in one npm workspace sharing a single tenant database. The interesting part is which sidecar wins: both sub-projects get an MTX sidecar, both have cds.xt.SaasProvisioningService switched off, and a third onboarding project keeps provisioning to itself. Configuration listings rather than prose, and it assumes you already know why you would want this.xuelong, published 2025-01-08
Developing CAP java/node.js mixed mono Multitenant SaaS Applications with Shared Database
@sap/cds-mtxs has been through 2 major lines since this was published: 3 (2025-06), 4 (2026-06). Affects A recipe, Runnable code.
From Concept to action: Hands-On with the CAP Operator and the Partner Reference ApplicationFrom Concept to action: Hands-On with the CAP Operator and the Partner Reference ApplicationThe CAP Operator applied to a real application rather than a sample of its own — SAP's Partner Reference Application, taken from plugin integration through containerisation to custom resources. The transition to CRDs is the part that repays attention: it is where the deployment stops being an mta and becomes Kubernetes.ChristianWeiss, published 2026-05-21
Getting your head into Cloud Application Programming model multitenancyGetting your head into Cloud Application Programming model multitenancyOpens by telling you it is out of date and pointing at the HANA Academy series instead, which is more honest than most posts manage. What survives the staleness is the discussion and context around multitenancy that the title promises — the reasoning, not the commands.andrew_lunde, published 2020-08-20
Getting your head into Cloud Application Programming model multitenancy
Multitenancy has changed twice since this was published, most recently in @sap/cds 7.0.0, 2023-06-22. Affects Runnable code.
Multitenant application using Cloud Application Programming Model (CAP)Multitenant application using Cloud Application Programming Model (CAP)A worked multitenant application on the Java SDK with the mtx sidecar beside it — the arrangement where provisioning lives in a separate Node process even when the application is Java. Includes the UI module, so the subscription is visible end to end.former_member733211, published 2021-05-19
Multitenant application using Cloud Application Programming Model (CAP)
Multitenancy has changed twice since this was published, most recently in @sap/cds 7.0.0, 2023-06-22. Affects A recipe, Runnable code.
Multitenant MTA: providing a Cloud Portal Service with FIORI apps to subscriber accountsMultitenant MTA: providing a Cloud Portal Service with FIORI apps to subscriber accountsFiori applications reaching a subscriber's own launchpad, which is the part of multitenancy the runtime does not do for you. The author's motivation is that the information exists but is scattered across documentation, and this puts it in one place.former_member1760, published 2022-01-03
Multitenant SaaS applications on SAP BTP using CAP - The Reloaded Version!Multitenant SaaS applications on SAP BTP using CAP - The Reloaded Version!An announcement rather than a tutorial, and it is the one that changes how the rest of the series should be read: the Cloud Foundry and Kyma code lines and their documentation were merged into a single sample, so the runtime becomes a choice inside one repository instead of a fork in the reading path.martinfrick, published 2023-08-09
SaaS Self-Onboarding and One-Domain Concept in SAP BTP, Kyma Runtime using CAPSaaS Self-Onboarding and One-Domain Concept in SAP BTP, Kyma Runtime using CAPTwo requirements that only appear once a SaaS application has customers: subscribing a tenant end-to-end without the provider doing it by hand, and serving every tenant from one domain instead of one host per subscriber. Kyma runtime, and the post is a summary pointing at an Expert Feature tutorial in the sample repository — it says so itself, offering a one-minute read as the entry point.martinfrick, published 2023-06-01
SaaS Self-Onboarding and One-Domain Concept in SAP BTP, Kyma Runtime using CAP
Multitenancy changed in @sap/cds 7.0.0, 2023-06-22. Affects Runnable code.
Testing your CAP HANA Artifacts with jest – including multitenancy, hdbprocedure and hdbviewTesting your CAP HANA Artifacts with jest – including multitenancy, hdbprocedure and hdbviewcds.test covers the service; this covers what is underneath it, where the artifact is an hdbprocedure or an hdbview that CDS never sees. That means a real HDI container, so most of the post is about where to get one and how to give CAP access to it — the tests are the easy part once that is true.Tristan, published 2022-08-30
Testing your CAP HANA Artifacts with jest – including multitenancy, hdbprocedure and hdbview
Testing has changed 3 times since this was published, most recently in @cap-js/cds-test 1.0.0, 2026-04-23. Affects A recipe, Runnable code.
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
How to consume UI5 custom libraries in BAS or VS CodeHow to consume UI5 custom libraries in BAS or VS CodeConsuming a custom UI5 library from a UI5 application locally, using yarn workspaces to resolve the dependency instead of adjusting the project before every deploy. The post is honest about its own history: the author had asked the question on SAP Community, found a workaround that needed a pre-deploy edit, and only later learned the workspace approach that removes it. Generator-based setup throughout, and 2021-vintage — yarn workspaces, generator-ui5-library and generator-easy-ui5.published 2021-04-06
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.
debug a CAP app with UI5 TypeScript UI component with VS Codedebug a CAP app with UI5 TypeScript UI component with VS CodeDebugging both runtimes at once — the CAP server and a UI5 component written in TypeScript, the latter stepped through in its own sources rather than in the transpiled output. Written when TypeScript for UI5 had just become possible, and the combination it sets up is the one CAP's app folder invites.published 2021-11-16
SAP CAP: Best VSCode extensions for TypeScript development (UI5 & NodeJS)SAP CAP: Best VSCode extensions for TypeScript development (UI5 & NodeJS)A working editor setup for CAP with TypeScript, listed extension by extension across the Node.js and UI5 halves. The kind of post that ages by attrition rather than by being wrong — the reasoning about what an editor needs to know about a CDS project outlives any particular extension in the list.published 2024-04-29
SAP CAP: Best VSCode extensions for TypeScript development (UI5 & NodeJS)
Editor support changed in @sap/cds-dk 8.8.0, 2025-03-04. Affects Runnable code.
Use Tasks in Visual Studio Code to start a cds service, an approuter and launch a browser in one goUse Tasks in Visual Studio Code to start a cds service, an approuter and launch a browser in one gocds watch serves the service and the app folder but not the approuter, so anything needing a JWT means a second terminal started by hand. This replaces that with a VS Code task definition — the tasks.json is in the post — so the whole local stack comes up on one command.pieterjanssens, published 2021-04-09
Use Tasks in Visual Studio Code to start a cds service, an approuter and launch a browser in one go
Local development has changed twice since this was published, most recently in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
cf-create-app: Create End-to-End apps and deploy to Cloud Foundry in minutescf-create-app: Create End-to-End apps and deploy to Cloud Foundry in minutesA generator from 2020 that goes further than scaffolding — an end-to-end application created and deployed to Cloud Foundry in one run. Predates most of what cds add now does.former_member604013, published 2020-07-29
cf-create-app: Create End-to-End apps and deploy to Cloud Foundry in minutes
Generators has changed twice since this was published, most recently in @sap/cds-dk 10.0.3, 2026-07-02. Affects A recipe, Runnable code.
加速开发和部署的CAP CDS和Fiori一些实用命令加速开发和部署的CAP CDS和Fiori一些实用命令In Chinese. A command reference rather than a walkthrough — cds import, cds compile, cds deploy --to sqlite, cds add hana, cds add xsuaa — grouped by what they are for. The kind of page that is more useful than a tutorial once you already know what you are doing.TiaXu, published 2022-10-21
加速开发和部署的CAP CDS和Fiori一些实用命令
Generators has changed twice since this was published, most recently in @sap/cds-dk 10.0.3, 2026-07-02. Affects A recipe, Runnable code.
Introducing eslint-plugin-better-cap-config an ESLint plugin to improve CAP configurationIntroducing eslint-plugin-better-cap-config an ESLint plugin to improve CAP configurationThe author's own announcement, and precise about scope: today it catches deprecated key/value entries in CAP's JSON configuration, and the ambition is that it grows into best practices, suggestions and autofixes the way any ESLint plugin does. The implementation detail worth knowing is that it uses modern ESLint's JSON language support rather than a generic parser, which is what makes linting a configuration file rather than source code work at all.published 2025-09-08
A Fiori Launchpad Sandbox for all your CAP-based projects - OverviewA Fiori Launchpad Sandbox for all your CAP-based projects - OverviewWhere cds-launchpad-plugin came from, told as a learning exercise: the author wanted a real problem to teach himself TypeScript on, and picked the thing he kept redoing in every CAP project — a launchpad to see all the UI applications in one place. The origin post for an entry whose 2023 update is also indexed here.published 2022-03-14
A Fiori Launchpad Sandbox for all your CAP-based projects – Sample project setupA Fiori Launchpad Sandbox for all your CAP-based projects – Sample project setupThe hands-on half published the same day as the overview: the launchpad module wired into the CAP sample repository, step by step from a global cds-dk install. Same-day pairs like this are worth keeping together — the overview argues, this one is the thing you follow.published 2022-03-14
Avoid design time CAP server restarts when maintaining local data filesAvoid design time CAP server restarts when maintaining local data filescds watch restarting on every file change is the feature; this is the case where it is not. Editing a CSV seed file mid-edit restarts the server against half-finished data, and the post is about suppressing that without giving up the watch loop. A small friction most people work around silently rather than fix.published 2024-04-26
Avoid design time CAP server restarts when maintaining local data files
Local development changed in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
CAP Typescript + Fiori Typescript + live reload Initial app setupCAP Typescript + Fiori Typescript + live reload Initial app setupA full-stack TypeScript starting point recorded as it was arrived at — the terminal commands and the configuration files, in order, for the CAP side, the conversion to TypeScript, and then the Fiori side. The author is explicit that it takes a while to go through, which is the honest framing for a setup that has this many steps.Christophe_SW, published 2023-06-18
CAP Typescript + Fiori Typescript + live reload Initial app setup
TypeScript patterns changed in @cap-js/cds-typer 0.5.0, 2023-07-25. Affects Runnable code.
cds-launchpad-plugin supercharged & ready for the future - CAP Plugin, UI5 Tooling support & Async Launchpadcds-launchpad-plugin supercharged & ready for the future - CAP Plugin, UI5 Tooling support & Async LaunchpadThe maintainer on a set of changes rather than on the plugin's original purpose, which is indexing every SAPUI5 project in a workspace into one sandbox launchpad so all of them can be tested together. What moved: it became a CAP plugin, gained UI5 Tooling support, and moved to the async launchpad — each framed as keeping pace with where SAPUI5 itself is going rather than as a feature.published 2023-12-11
Creating a Hybrid CAP (Node.js) Profile with PostgreSQL on BTP from Business Application StudioCreating a Hybrid CAP (Node.js) Profile with PostgreSQL on BTP from Business Application StudioHybrid testing is documented for HANA; this is the same profile against a PostgreSQL instance on BTP, driven from a BAS dev space rather than a laptop. Proposed under editor support because of where it runs, but the subject is the binding: what cds bind writes, and what has to be true of the service instance and the tunnel for a local process to reach it.valentincadart, published 2025-10-02
Creating a Hybrid CAP (Node.js) Profile with PostgreSQL on BTP from Business Application Studio
Database connectors changed in @sap/cds 10.1.0, 2026-09-07. Affects Runnable code.
Develop SAP CAP apps inside a VS Code Docker ContainerDevelop SAP CAP apps inside a VS Code Docker ContainerA VS Code dev container configuration with everything a CAP project needs already in it, published as a repository rather than as instructions. The 2020 half of a pair whose other half, four years later, does the same for Lazyvim — the same author solving the same problem twice as his editor changed.published 2020-02-20
Develop SAP CAP apps inside a VS Code Docker Container
Local development has changed twice since this was published, most recently in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
Don't Wait for SAP: Unlocking MCP Servers in BAS Right NowDon't Wait for SAP: Unlocking MCP Servers in BAS Right NowA workaround post with a grievance behind it: MCP servers were promoted heavily at SAP TechEd, most IDEs support them, and Business Application Studio limits you to Joule. This is how to run them there anyway. Worth reading as evidence of where the tooling gap sits rather than only for the recipe, which by nature has a shelf life.published 2025-11-27
Establishing connectivity between a local CAP runtime and on-premise systemsEstablishing connectivity between a local CAP runtime and on-premise systemsReaching S/4HANA, an on-premise HANA or any HTTP service from a CAP process running on your laptop — the case where the connectivity proxy the platform provides is not there and the tunnel has to be arranged.vLeonkev, published 2025-10-15
Fullstack CAP Application with HANA Cloud (Decoupled Architecture) [Part-1]Fullstack CAP Application with HANA Cloud (Decoupled Architecture) [Part-1]The first of six, and it does the thing the later parts depend on: build the Incident Management application against SQLite on a laptop, with no cloud database in sight. The series is called decoupled because the front end and the back end are deployed separately, and this part is entirely the back end.sanjucs, published 2026-05-06
Fullstack CAP Application with HANA Cloud (Decoupled Architecture) [Part-1]
Database connectors changed in @sap/cds 10.1.0, 2026-09-07. Affects A recipe, Runnable code.
How to Call a Remote OData API from Your Local CAP Java ProjectHow to Call a Remote OData API from Your Local CAP Java ProjectThe Business Accelerator Hub sandbox called from a CAP Java project on a laptop, with a concrete finish line — a localhost URL that returns business partners. Everything needed to get there is listed, Maven and JDK versions included.Umezuki, published 2025-08-11
SAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAPSAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAPGetting UI5 Tooling and the CAP server onto one port under one command, using cds-plugin-ui5 — which the post presents as the thing that removes the proxy and destination configuration a full-stack dev setup otherwise needs. Part one of a journey that goes on to put the approuter in front at development time.published 2023-10-13
SAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAP
cds-plugin-ui5 has been through 11 major lines since this was published, most recently 0.15 (2025-11), 0.16 (2025-12), 0.17 (2026-03). Affects Runnable code.
Set up VS Code on Chrome OS for local Application Programming Model developmentSet up VS Code on Chrome OS for local Application Programming Model developmentA CAP development environment on a Chromebook, written from preference rather than constraint — the author sets out why Chrome OS is his primary machine before showing the setup. Carries its own updates section noting what has changed since, which for a 2018 post about an operating system is most of it. The interest now is that local CAP development was portable this early.published 2018-10-16
Set up VS Code on Chrome OS for local Application Programming Model development
Local development has changed twice since this was published, most recently in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
Use SCP CF Destination service in NodeJs locallyUse SCP CF Destination service in NodeJs locallyReading a destination from a laptop, where the environment variable the destination service normally provides does not exist. A small gap with a real cost, since the alternative is deploying to test every change to a remote call.WouterLemaire, published 2020-05-28
Use SCP CF Destination service in NodeJs locally
Destinations changed in @sap-cloud-sdk/connectivity 4.0.0, 2025-03-04. Affects Runnable code.
Use Tasks in Visual Studio Code to start a cds service, an approuter and launch a browser in one goUse Tasks in Visual Studio Code to start a cds service, an approuter and launch a browser in one gocds watch serves the service and the app folder but not the approuter, so anything needing a JWT means a second terminal started by hand. This replaces that with a VS Code task definition — the tasks.json is in the post — so the whole local stack comes up on one command.pieterjanssens, published 2021-04-09
Use Tasks in Visual Studio Code to start a cds service, an approuter and launch a browser in one go
Local development has changed twice since this was published, most recently in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
XSUAA Local TestingXSUAA Local TestingAdding XSUAA to a CAP project two ways, and then the part that is usually missing: getting the authorisation to behave on a laptop rather than only after deployment. The default authentication mechanism is the easy half; testing it without a landscape is the reason this exists.ManasaManu, published 2024-10-17
XSUAA Local Testing
Authorization has changed twice since this was published, most recently in CAP Java 3.7.1, 2025-01-30. Affects A recipe, Runnable code.
加速开发和部署的CAP CDS和Fiori一些实用命令加速开发和部署的CAP CDS和Fiori一些实用命令In Chinese. A command reference rather than a walkthrough — cds import, cds compile, cds deploy --to sqlite, cds add hana, cds add xsuaa — grouped by what they are for. The kind of page that is more useful than a tutorial once you already know what you are doing.TiaXu, published 2022-10-21
加速开发和部署的CAP CDS和Fiori一些实用命令
Generators has changed twice since this was published, most recently in @sap/cds-dk 10.0.3, 2026-07-02. Affects A recipe, Runnable code.
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
Avoid design time CAP server restarts when maintaining local data filesAvoid design time CAP server restarts when maintaining local data filescds watch restarting on every file change is the feature; this is the case where it is not. Editing a CSV seed file mid-edit restarts the server against half-finished data, and the post is about suppressing that without giving up the watch loop. A small friction most people work around silently rather than fix.published 2024-04-26
Avoid design time CAP server restarts when maintaining local data files
Local development changed in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
Avoiding Data Loss When Loading Initial Data with CSV Files in CAPAvoiding Data Loss When Loading Initial Data with CSV Files in CAPcds add tiny-sample gives you a CSV in db/data and it loads on deploy, which looks like a way to seed a productive application. The catch, stated plainly: change the CSV or the schema and HANA is reinitialised from the file, taking whatever users had entered with it.MioYasutake, published 2025-09-15
Handling CSV Data Deployment in CAP HDI Without Data LossHandling CSV Data Deployment in CAP HDI Without Data LossThe same trap from the HDI side: .hdbtabledata hands the container full ownership of the data, so the next deployment overwrites the table from the file. Two independent posts three months apart on the same sharp edge, which is a fair signal about how sharp it is.Sekar_Somasundaram, published 2025-06-04
ISO content for common CAP typesISO content for common CAP typesThe npm package that supplies ISO-standard content — countries, languages, currencies, timezones — for CAP's common types, and how it works underneath. The author flags the length and the reason for it up front, having followed the mechanism further than the question required, which is what makes it worth reading rather than a package announcement.published 2024-03-14
ISO content for common CAP types
Seed data changed in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
A Fiori Launchpad Sandbox for all your CAP-based projects - OverviewA Fiori Launchpad Sandbox for all your CAP-based projects - OverviewWhere cds-launchpad-plugin came from, told as a learning exercise: the author wanted a real problem to teach himself TypeScript on, and picked the thing he kept redoing in every CAP project — a launchpad to see all the UI applications in one place. The origin post for an entry whose 2023 update is also indexed here.published 2022-03-14
A Fiori Launchpad Sandbox for all your CAP-based projects – Sample project setupA Fiori Launchpad Sandbox for all your CAP-based projects – Sample project setupThe hands-on half published the same day as the overview: the launchpad module wired into the CAP sample repository, step by step from a global cds-dk install. Same-day pairs like this are worth keeping together — the overview argues, this one is the thing you follow.published 2022-03-14
CAP: Unit Testing using Mocha and ChaiCAP: Unit Testing using Mocha and ChaiUnit tests added to an existing CAP service rather than written alongside a new one, which is the harder and more common case. Mocha and Chai wired up by hand, from a time before cds.test was the obvious answer.jhodel18, published 2020-05-31
CAP: Unit Testing using Mocha and Chai
Testing has changed 3 times since this was published, most recently in @cap-js/cds-test 1.0.0, 2026-04-23. Affects Runnable code.
cds-launchpad-plugin supercharged & ready for the future - CAP Plugin, UI5 Tooling support & Async Launchpadcds-launchpad-plugin supercharged & ready for the future - CAP Plugin, UI5 Tooling support & Async LaunchpadThe maintainer on a set of changes rather than on the plugin's original purpose, which is indexing every SAPUI5 project in a workspace into one sandbox launchpad so all of them can be tested together. What moved: it became a CAP plugin, gained UI5 Tooling support, and moved to the async launchpad — each framed as keeping pace with where SAPUI5 itself is going rather than as a feature.published 2023-12-11
Getting Started with Unit Testing in SAP CAP Java ApplicationsGetting Started with Unit Testing in SAP CAP Java ApplicationsThe plain introduction: what the CAP Java framework gives you to test against, and how to start. Prerequisite to the same author's Copilot post.Anjali_Pathak, published 2025-07-28
Getting Started with Unit Testing in SAP CAP Java Applications
Testing changed in @cap-js/cds-test 1.0.0, 2026-04-23. Affects Runnable code.
How to Restrict CRUD Operations in SAP CAPM Using @Capabilities, @readonly and Test APIs with .httpHow to Restrict CRUD Operations in SAP CAPM Using @Capabilities, @readonly and Test APIs with .httpEntities are exposed with full CRUD by default, and this is how to take operations away again — @Capabilities for Insert, Update and Delete individually, @readonly for the blunt version. Tested with .http files rather than a UI, which keeps the check on the service.DeepaRagho, published 2026-05-22
Integration Tests in a Cloud Foundry Java App using SAP Cloud Application Programming ModelIntegration Tests in a Cloud Foundry Java App using SAP Cloud Application Programming ModelIntegration rather than unit tests, and from 2020 — the earliest testing entry here, and a reminder of what had to be assembled by hand before the framework had an answer.former_member428487, published 2020-02-23
Integration Tests in a Cloud Foundry Java App using SAP Cloud Application Programming Model
Testing has changed 3 times since this was published, most recently in @cap-js/cds-test 1.0.0, 2026-04-23. Affects Runnable code.
Simplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightSimplifying SAP BTP Authentication in Pipelines with SAP Passport and PlaywrightClient-certificate login to BTP works locally and has historically not worked in automated pipelines. The post uses Playwright's then-new client certificate support to close that, which is a sideways use of a browser automation library and the reason it is worth recording — the constraint it removes is a CI constraint, not a testing one.published 2024-11-08
Testing your CAP HANA Artifacts with jest – including multitenancy, hdbprocedure and hdbviewTesting your CAP HANA Artifacts with jest – including multitenancy, hdbprocedure and hdbviewcds.test covers the service; this covers what is underneath it, where the artifact is an hdbprocedure or an hdbview that CDS never sees. That means a real HDI container, so most of the post is about where to get one and how to give CAP access to it — the tests are the easy part once that is true.Tristan, published 2022-08-30
Testing your CAP HANA Artifacts with jest – including multitenancy, hdbprocedure and hdbview
Testing has changed 3 times since this was published, most recently in @cap-js/cds-test 1.0.0, 2026-04-23. Affects A recipe, Runnable code.
Using Postman for API Testing with XSUAAUsing Postman for API Testing with XSUAAA way to get a JWT without routing traffic through the approuter and picking the token out of it. The author walks the alternatives first — redirect through the router, intercept the token — and says what is wrong with each, before requesting the token from the service directly.mariusobert, published 2020-03-02
CAP Typescript + Fiori Typescript + live reload Initial app setupCAP Typescript + Fiori Typescript + live reload Initial app setupA full-stack TypeScript starting point recorded as it was arrived at — the terminal commands and the configuration files, in order, for the CAP side, the conversion to TypeScript, and then the Fiori side. The author is explicit that it takes a while to go through, which is the honest framing for a setup that has this many steps.Christophe_SW, published 2023-06-18
CAP Typescript + Fiori Typescript + live reload Initial app setup
TypeScript patterns changed in @cap-js/cds-typer 0.5.0, 2023-07-25. Affects Runnable code.
CDS-TS-Dispatcher: Simplifying SAP CAP TypeScript DevelopmentCDS-TS-Dispatcher: Simplifying SAP CAP TypeScript DevelopmentThe first of a pair introducing the author's own libraries, and it states what it is reacting to: CAP derives OData services from a CDS model, but the communication between business logic, service and persistence layers is left to you, and the earlier attempt at the service-layer half, cds-routing-handler, appeared unmaintained against newer CAP. The dispatcher is the answer offered for that layer.published 2023-11-13
CDS-TS-Dispatcher: Simplifying SAP CAP TypeScript Development
@dxfrontier/cds-ts-dispatcher has been through 6 major lines since this was published, most recently 4 (2025-01), 5 (2025-07), 6 (2026-07). Affects Runnable code.
CDS-TS-Repository: Simplify SAP CAP Entity persistance with BaseRepositoryCDS-TS-Repository: Simplify SAP CAP Entity persistance with BaseRepositoryThe persistence half of the same pair, three days later: a BaseRepository putting entity access behind a typed repository rather than CQN written inline in a handler. Shares its opening argument with the dispatcher post — the layer between business logic and persistence is the part CAP leaves open — and the two are designed to be used together.published 2023-11-16
CDS-TS-Repository: Simplify SAP CAP Entity persistance with BaseRepository
@dxfrontier/cds-ts-repository has been through 9 major lines since this was published, most recently 5 (2024-12), 6 (2025-07), 7 (2026-07). Affects Runnable code.
Full Stack TypeScript App for Cloud Foundry - Sample RepositoryFull Stack TypeScript App for Cloud Foundry - Sample RepositoryA whole repository rather than a snippet: a CAP Node.js service and a freestyle SAPUI5 application, both in TypeScript, arranged for Cloud Foundry. The build process gets its own section, which is where a TypeScript full-stack project usually goes wrong.former_member66, published 2021-12-09
Full Stack TypeScript App for Cloud Foundry - Sample Repository
TypeScript patterns changed in @cap-js/cds-typer 0.5.0, 2023-07-25. Affects A recipe, Runnable code.
Quick Implementation of DI/DI Container on SAP CAP: Node.js Hands-on PartQuick Implementation of DI/DI Container on SAP CAP: Node.js Hands-on PartThe hands-on half of a pair — the theory is in the author's earlier post — built on the official bookshop sample with the directories flattened so the pattern is visible rather than the scaffolding. Assumes CAP and TypeScript already.Umezuki, published 2025-05-02
SAP CAP: Controller - Service - Repository architectureSAP CAP: Controller - Service - Repository architectureThe pattern the author's two libraries exist to support, set out as a whole rather than one package at a time: a controller layer receiving the request, a service layer holding business logic, and a repository layer owning persistence — the separation CAP leaves to the developer once a model has produced an OData service. Read after the dispatcher and repository posts, or before them as the argument for both.published 2024-04-22
SAP CAP: Controller - Service - Repository architecture
@dxfrontier/cds-ts-dispatcher has been through 4 major lines since this was published, most recently 4 (2025-01), 5 (2025-07), 6 (2026-07). Affects Runnable code.
Taking CAP to the next level - with TypeScriptTaking CAP to the next level - with TypeScriptThe author's own two packages introduced together, and they are two halves of one idea: cds2types generates TypeScript from the CDS model, cds-routing-handlers arranges the handlers that use them. Published in 2020, years before cds-typer, which makes it the earliest answer in the graph to a question the core answered later.published 2020-05-22
Taking CAP to the next level - with TypeScript
cds-routing-handlers: release and repository quiet for 46 months. Affects Runnable code.
Use TypeScript with the SAP Cloud Application Programming ModelUse TypeScript with the SAP Cloud Application Programming ModelWritten from the position of someone who avoided JavaScript for years and then had to cover CAP, which gives it a useful angle: what TypeScript buys a person arriving from a typed language, and where to start rather than how to finish. Ends on a worked example rather than a survey.KevinR, published 2024-06-24
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 3/3A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 3/3The SAPUI5 frontend of the sample, and mostly an argument for writing UI5 in TypeScript: ES imports in place of sap.ui.define, a class with real private members in place of the underscore convention, and the service types generated from the CDS model copied into the UI package, so one IChats interface types the OData object the controller reads. The second half is structure — a formatter class and a singleton LayoutManager called from the XML view through core:require, a confirmation helper taking a callback, a dialog class resolving a promise, a generic createEntity<T> on a service class — all of it to keep every controller under 100 lines. What it says about arranging a UI5 app holds whatever model sits behind the chat; the tooling around it is of its date, and the post calls UI5's TypeScript support experimental.published 2023-02-27
A ChatGPT-like chat app built with modern SAP technologies (CAP, SAPUI5) – Part 3/3
cds2types. Affects Runnable code.
debug a CAP app with UI5 TypeScript UI component with VS Codedebug a CAP app with UI5 TypeScript UI component with VS CodeDebugging both runtimes at once — the CAP server and a UI5 component written in TypeScript, the latter stepped through in its own sources rather than in the transpiled output. Written when TypeScript for UI5 had just become possible, and the combination it sets up is the one CAP's app folder invites.published 2021-11-16
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-tsExploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-tsPart one of two: a bookshop project built in TypeScript from cds init, with cds-typer added as a development dependency and the surrounding tools — cds-ts and node-ts — put in place so the project runs locally. A setup walkthrough rather than an argument about typing, and it stops at the point where the application works on a laptop; deployment is part two.satya-dev, published 2024-07-08
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts
@cap-js/cds-typer has been through 18 major lines since this was published, most recently 0.39 (2026-05), 0.40 (2026-06), 0.41 (2026-08). Affects A recipe, Runnable code.
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts Part - 2Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts Part - 2Part two takes the TypeScript project from part one to Cloud Foundry: cds add mta, then the parts of the generated descriptor the author singles out as needing attention for a TypeScript build rather than a JavaScript one. The pair together is the whole path — typed model locally, then deployed — which is where a typing walkthrough usually stops short.satya-dev, published 2024-07-19
Exploring the TypeScript Ecosystem with @cap-js/cds-typer, cds-ts, and node-ts Part - 2
@cap-js/cds-typer has been through 17 major lines since this was published, most recently 0.39 (2026-05), 0.40 (2026-06), 0.41 (2026-08). Affects Runnable code.
Simple Table Maintenance in SAP Fiori Using UI5 Smart ControlsSimple Table Maintenance in SAP Fiori Using UI5 Smart ControlsStarts from SM30 and the table maintenance dialog it generated with almost no code, then asks what the equivalent is now. That framing is the value: a maintenance screen for a custom table was a solved problem in SAP GUI and is not an obviously solved one on Fiori, and the post works through what smart controls give you towards it.published 2025-02-11
The Complete Guide to Calling Actions in UI5 with Custom CodeThe Complete Guide to Calling Actions in UI5 with Custom CodeWritten because the documentation is thin and the samples sparse, and openly as a note to the author's future self — hand-coding an action call has become a rare task for anyone mostly working in Fiori elements, which is exactly why it is hard to look up when it comes round. Comes with a CAP sample project, so the service half is there too.published 2025-07-21
Custom Handlers for Entities in SAP CAPCustom Handlers for Entities in SAP CAPWritten from the moment of not knowing: a two-level composition with drafts, the Fiori elements UI working perfectly, and no idea which handlers are actually needed. What comes out is the action lifecycle laid out as a reference — NEW, EDIT, PATCH and the rest — with a matrix saying which handler fires for which, which is the thing the documentation leaves you to assemble.xavisanse, published 2026-02-20
How to ensure that users can efficiently enter data in SAP Fiori elements applicationsHow to ensure that users can efficiently enter data in SAP Fiori elements applicationsGuidance for draft-enabled Fiori Elements applications aimed at the user who spends their day in them: entering data quickly and by keyboard, on a slow network, without the round trips a draft-backed form can otherwise impose. Written from the design side rather than the implementation side, which is the half most CAP writing about drafts leaves out.published 2022-12-05
Messaging System for Transferring Error, Warning, and Information Messages from OData V4 Services to HTTP Client ApplicationsMessaging System for Transferring Error, Warning, and Information Messages from OData V4 Services to HTTP Client ApplicationsGetting a message out of a CAP service and onto a Fiori elements object page in a draft scenario — errors, warnings and information, each of which the UI treats differently. Co-written with one of the people on the OData side, and it spends its length on the message container rather than on the handler that fills it.arley-triana-morin, published 2022-08-11
Messaging System for Transferring Error, Warning, and Information Messages from OData V4 Services to HTTP Client Applications
OData changed in @cap-js-community/odata-v2-adapter 1.10.0, 2023-04-05. Affects A recipe, Runnable code.
Build and deploy a CAP Project Node.js API with a SAP Fiori Elements UI and a managed approuter configurationBuild and deploy a CAP Project Node.js API with a SAP Fiori Elements UI and a managed approuter configurationGeneration and deployment in one piece, with the managed approuter rather than a standalone one — so the routing is configuration instead of a module, and the post covers what that changes at deploy time.jlong, published 2022-02-10
Build and deploy a CAP Project Node.js API with a SAP Fiori Elements UI and a managed approuter configuration
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Build SAP Overview Page using SAP HANA Cloud & SAP CAP service annotations in Visual Studio CodeBuild SAP Overview Page using SAP HANA Cloud & SAP CAP service annotations in Visual Studio CodeAn Overview Page — the card-based Fiori elements floorplan, less written about than the list report — driven entirely from annotations on a CAP service, in VS Code rather than Business Application Studio.Sai_Nithesh_G, published 2021-08-05
Build SAP Overview Page using SAP HANA Cloud & SAP CAP service annotations in Visual Studio Code
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Building an Analytical List Page with CAP OData V4Building an Analytical List Page with CAP OData V4The annotations a CAP OData V4 service needs before an Analytical List Page will render — the write-up behind the cap-alp sample indexed here. Candid about its provenance: the author credits a GitHub repository she found the approach in, and notes that the repository is no longer available, which is the whole argument for indexing the reasoning rather than only linking the code.published 2023-06-12
Building an Analytical List Page with CAP OData V4
cap-alp: no published releases, repository quiet for 24 months. Affects A recipe, Runnable code.
Building an Enterprise Application Using Fiori Elements and CAP – Part 3Building an Enterprise Application Using Fiori Elements and CAP – Part 3The Object Page, which the author points out is entirely annotation-driven — there is no page to design, only facets to declare. The last of the three.Farooq, published 2025-12-10
Building an Enterprise Application Using Fiori Elements and CAP – Part 3
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations - Part1CAP with Fiori Elements: Actions on List Report / Object Page using Annotations - Part1Actions on their own, at length — where an action can be placed, what the annotation looks like for each position, and what changes between the List Report and the Object Page. Part one of two.Ajit_K_Panda, published 2023-12-31
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations - Part1
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations – Part2CAP with Fiori Elements: Actions on List Report / Object Page using Annotations – Part2The second half of the actions pair, published the same day. Between them they cover more ground on this one annotation than the documentation does in one place.Ajit_K_Panda, published 2023-12-31
CAP with Fiori Elements: Actions on List Report / Object Page using Annotations – Part2
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
CAP with Fiori Elements: Configure Multiple Views on List Report TablesCAP with Fiori Elements: Configure Multiple Views on List Report TablesSeveral tabs over one entity, each with its own filter — the multiple-views annotation, which is one of the few Fiori elements features that changes the shape of the page rather than its content.Ajit_K_Panda, published 2023-12-25
CAP with Fiori Elements: Configure Multiple Views on List Report Tables
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
CAP with Fiori Elements: Side Effects, Custom Actions, Dynamic ExpressionsCAP with Fiori Elements: Side Effects, Custom Actions, Dynamic ExpressionsThe first of the author's Fiori elements posts, and the widest: side effects, which are the annotation that tells the UI a field changed something else; custom actions; and dynamic expressions. The three that turn a generated app into a usable one.Ajit_K_Panda, published 2022-12-23
CAP with Fiori Elements: Side Effects, Custom Actions, Dynamic Expressions
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
Deep Insert in SAP CAPM Using Composition and Fiori ElementsDeep Insert in SAP CAPM Using Composition and Fiori ElementsParent and children created in one transaction, which composition already gives you in the model — the post is about what Fiori elements does with it, and what the payload looks like when the UI sends both at once.published 2026-05-22
Developing a Fiori elements app with CAP and Fiori ToolsDeveloping a Fiori elements app with CAP and Fiori ToolsA learning write-up from someone new to CAP at the time, and long enough to be thorough. Carries its own update pointing at a newer post on deploying a CAP-based Fiori app to a central launchpad without an approuter.MioYasutake, published 2020-09-07
Developing a Fiori elements app with CAP and Fiori Tools
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Developing SAP Fiori Element application by using SAP Cloud Application Programming ModelDeveloping SAP Fiori Element application by using SAP Cloud Application Programming ModelThe long version, and it starts by naming the floorplans — List Report, Worklist, Object Page, Overview Page, Analytical List Page — which is the decision most walkthroughs skip. Then one of them, built out against a CAP service.shobhit, published 2023-08-07
Developing SAP Fiori Element application by using SAP Cloud Application Programming Model
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Discovering SAP Fiori Elements Analytical functions by implementing SAP Support Message ReportingDiscovering SAP Fiori Elements Analytical functions by implementing SAP Support Message ReportingAnalytical annotations learned by building something the author wanted — a view over SAP support messages — after a conversation in February 2021 that the post dates precisely. Exploration written up as exploration.published 2021-03-14
Display of hierarchical data in SAP Fiori elements using SAP Cloud Application Programming ModelDisplay of hierarchical data in SAP Fiori elements using SAP Cloud Application Programming ModelHierarchies before the framework supported them, and the post now opens with its own update saying that Fiori elements V4 and OData V4 support tree views natively and linking the guide. Read the update first; the rest is the record of what people did in the meantime.OliverKlemenz, published 2022-07-01
Display of hierarchical data in SAP Fiori elements using SAP Cloud Application Programming Model
sap:hierarchy. Affects Runnable code.
Extend Upload Set with Table to Fiori Elements and utilize Object StoreExtend Upload Set with Table to Fiori Elements and utilize Object StoreThe Object Store variant of the author's earlier Document Management post, written after testing @cap-js/attachments — a sample managing text and file information together, and offered as something for people new to BTP rather than as a pattern.published 2024-05-21
Extend Upload Set with Table to Fiori Elements and utilize Object Store
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
Fiori Elements Analytical Table with CAP: Does it work with V2 and V4?Fiori Elements Analytical Table with CAP: Does it work with V2 and V4?A question in the title and an answer in the post, with the boundary drawn carefully: this is an analytical table inside a List Report, not the Analytical List Page, and the two protocol versions do not behave the same.published 2023-04-03
Fiori Elements Analytical Table with CAP: Does it work with V2 and V4?
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
From R/3 ABAP to CAP/Fiori Elements on SAP BTP- DeploymentFrom R/3 ABAP to CAP/Fiori Elements on SAP BTP- DeploymentThe doing half: the steps and the code that got the application from the first post deployed and working. Shorter, and it assumes the argument has already been made.former_member231477, published 2021-04-30
From R/3 ABAP to CAP/Fiori Elements on SAP BTP- Deployment
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
From R/3 ABAP to CAP/Fiori Elements on SAP CloudFrom R/3 ABAP to CAP/Fiori Elements on SAP CloudWritten by an ABAP developer of fourteen years explaining what changed and what did not — the argument being that CAP kept the focus on business logic that ABAP had, where learning UI5 and a framework or two had not. The reasoning half of a pair.former_member231477, published 2021-03-24
From R/3 ABAP to CAP/Fiori Elements on SAP Cloud
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
Fullstack CAP Application with HANA Cloud (Decoupled Architecture) [Part-2]Fullstack CAP Application with HANA Cloud (Decoupled Architecture) [Part-2]Part 1 left a working OData service whose Fiori preview showed nothing useful. This is the annotations that fix that — the UI vocabulary added to the CDS model until the generated list report has columns worth reading.sanjucs, published 2026-05-07
How to Control the Visibility of CRUD and Custom Actions in Fiori Elements Based on AuthorizationHow to Control the Visibility of CRUD and Custom Actions in Fiori Elements Based on AuthorizationHiding Create, Edit and custom action buttons according to what the user may actually do — the join between the authorisation model and the annotations, which is where the two usually fail to agree and the UI offers something the service will refuse.published 2025-05-14
How to ensure that users can efficiently enter data in SAP Fiori elements applicationsHow to ensure that users can efficiently enter data in SAP Fiori elements applicationsGuidance for draft-enabled Fiori Elements applications aimed at the user who spends their day in them: entering data quickly and by keyboard, on a slow network, without the round trips a draft-backed form can otherwise impose. Written from the design side rather than the implementation side, which is the half most CAP writing about drafts leaves out.published 2022-12-05
Part 1: How to build an extension application for SAP S/4HANA Cloud using CAP, SAP Cloud SDK and SAP Fiori elementsPart 1: How to build an extension application for SAP S/4HANA Cloud using CAP, SAP Cloud SDK and SAP Fiori elementsThe substantial part of a side-by-side extensibility series: CAP Node.js, Cloud SDK and Fiori elements against S/4HANA Cloud. Eighteen thousand characters, and the one to read if you only read one.former_member748, published 2020-12-01
Part 1: How to build an extension application for SAP S/4HANA Cloud using CAP, SAP Cloud SDK and SAP Fiori elements
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Part 2: How to build an extension application for SAP S/4HANA Cloud using CAP, SAP Cloud SDK and SAP Fiori elementsPart 2: How to build an extension application for SAP S/4HANA Cloud using CAP, SAP Cloud SDK and SAP Fiori elementsThe second part, continuing the same extension. Opens with a recap of the stack rather than of the steps, which makes it readable on its own.former_member748, published 2020-12-20
Part 2: How to build an extension application for SAP S/4HANA Cloud using CAP, SAP Cloud SDK and SAP Fiori elements
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Random collection of useful code fragments for CAP Fiori Elements and SAPUI5Random collection of useful code fragments for CAP Fiori Elements and SAPUI5Exactly what it says, and the author gives the reason: none of these were easy to find in the documentation or the samples. A collection of fragments rather than an argument, and the kind of page people bookmark.published 2020-11-18
Random collection of useful code fragments for CAP Fiori Elements and SAPUI5
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
SAP CAP Remote Services & SAP Fiori ElementsSAP CAP Remote Services & SAP Fiori ElementsWhat happens to a generated UI when the data is not local: a CAP service projecting a remote one, with Fiori elements on top. The author explored it to find out where the abstraction holds, which is the useful register for this.Former Member, published 2021-05-20
SAP CAP Remote Services & SAP Fiori Elements
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects A recipe, Runnable code.
Simple Table Maintenance in SAP Fiori Using UI5 Smart ControlsSimple Table Maintenance in SAP Fiori Using UI5 Smart ControlsStarts from SM30 and the table maintenance dialog it generated with almost no code, then asks what the equivalent is now. That framing is the value: a maintenance screen for a custom table was a solved problem in SAP GUI and is not an obviously solved one on Fiori, and the post works through what smart controls give you towards it.published 2025-02-11
Upload data from excel in CAP (Node.js)Upload data from excel in CAP (Node.js)Mass upload from a spreadsheet, both halves shown: an entity marked @cds.persistence.skip to receive the file, an INSERT built from the parsed rows, and a list report extended with the upload button that starts it.KM11, published 2022-11-21
Upload data from excel in CAP (Node.js)
Database connectors has changed twice since this was published, most recently in @sap/cds 10.1.0, 2026-09-07. Affects Runnable code.
Visualizing Your SAP Bill of Materials Using CAP, Fiori elements, and the UI5 Network GraphVisualizing Your SAP Bill of Materials Using CAP, Fiori elements, and the UI5 Network GraphA parent-child structure rendered as a network graph inside a Fiori Elements application, with the CAP service modelling the bill of materials behind it. Useful as one of the few worked examples of putting a non-standard visualisation into an annotation-driven floorplan rather than building a freestyle app around it.published 2025-02-24
Visualizing Your SAP Bill of Materials Using CAP, Fiori elements, and the UI5 Network Graph
Fiori annotations changed in @sap/cds-dk 9.6.0, 2025-12-17. Affects Runnable code.
XML Annotations: The Essentials Before Adapting Documentation Samples to Your ProjectXML Annotations: The Essentials Before Adapting Documentation Samples to Your ProjectWhat to understand before copying an annotation out of the UI5 Demo Kit, which is what everybody actually does. The samples assume context the sample does not carry, and adapting one without that context is where the afternoon goes.MioYasutake, published 2026-04-09
CAP, CORS and custom headersCAP, CORS and custom headersWhat CAP itself does about CORS, and where it stops. The starting point is a colleague's request and a deliberate constraint: @sap/approuter has full CORS support, but the author wanted to know what the CAP server offers on its own and how to extend it. Ends up covering preflight requests and custom servers, which is the mechanism a frontend hosted outside BTP actually runs into.published 2024-04-11
SAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAPSAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAPGetting UI5 Tooling and the CAP server onto one port under one command, using cds-plugin-ui5 — which the post presents as the thing that removes the proxy and destination configuration a full-stack dev setup otherwise needs. Part one of a journey that goes on to put the approuter in front at development time.published 2023-10-13
SAP Tech Bytes: Using the SAP Approuter at dev time - a full-stack journey with UI5 and CAP
cds-plugin-ui5 has been through 11 major lines since this was published, most recently 0.15 (2025-11), 0.16 (2025-12), 0.17 (2026-03). Affects Runnable code.
ISO content for common CAP typesISO content for common CAP typesThe npm package that supplies ISO-standard content — countries, languages, currencies, timezones — for CAP's common types, and how it works underneath. The author flags the length and the reason for it up front, having followed the mechanism further than the question required, which is what makes it worth reading rather than a package announcement.published 2024-03-14
ISO content for common CAP types
Seed data changed in @sap/cds-dk 7.9.1, 2024-05-02. Affects Runnable code.
Enable App-to-App Navigation in BASEnable App-to-App Navigation in BASTesting navigation between two Fiori applications inside Business Application Studio, which Web IDE Full-Stack made easy and BAS initially did not. Two paths: between Fiori elements applications it is a few clicks in Fiori tools with both apps in the same workspace, and for a freestyle application the same result takes a short sequence of manual steps. Written in 2021 against the Fiori tools of the time, so read the mechanism rather than the clicks.published 2021-05-24
Testing SAP Build Process Automation task UI in SAP Business Application StudioTesting SAP Build Process Automation task UI in SAP Business Application StudioA task UI built from the Workflow Task UI template cannot be run in Business Application Studio: it expects the task model and the inbox API as startup parameters, and without them it fails before the view renders. The post shows the error, explains why it happens, and supplies a wrapper that provides the missing context locally, so the alternative to deploying on every change is not deploying on every change.published 2023-10-15
Consuming SAP Build API's made easy with SAP Cloud SDK in your CAP applicationConsuming SAP Build API's made easy with SAP Cloud SDK in your CAP applicationReaching into SBPA from CAP the other way round — reading its tasks and workflows rather than starting them. The author starts from the plain Axios version and says what it costs: the connection and the authentication are the work, not the call. Cloud SDK is used to generate a typed client from the OpenAPI document and then to resolve the connection through either a service binding or a destination, shown for client credentials and for user token exchange.maheshpalavalli, published 2023-02-08
Consuming SAP Build API's made easy with SAP Cloud SDK in your CAP application
Workflow integration has changed twice since this was published, most recently in @cap-js/n8n 0.0.1, 2026-08-27. Affects Runnable code.
Triggering SAP Build Process Automation Processes from SAP Cloud Application Programming (CAP) AppsTriggering SAP Build Process Automation Processes from SAP Cloud Application Programming (CAP) AppsThe two routes out of a CAP application into a process, side by side: a destination with OAuth2ClientCredentials, the same destination with principal propagation, and Event Mesh with a CloudEvents payload. Written before @cap-js/process existed, so it is the record of what the plugin now does for you — useful when the plugin does not fit, and useful for reading what it is actually doing underneath.ATheobaldt, published 2024-12-09
Triggering SAP Build Process Automation Processes from SAP Cloud Application Programming (CAP) Apps
Workflow integration has changed twice since this was published, most recently in @cap-js/n8n 0.0.1, 2026-08-27. Affects A recipe, Runnable code.
An Innovative Language Exchange App developed with SAP Build Apps, CAP, Kyma, and OpenAIAn Innovative Language Exchange App developed with SAP Build Apps, CAP, Kyma, and OpenAIA dormant internal app at SAP Japan revived with AI, built to solve a problem the team actually had — colleagues who could not talk to each other. Build Apps on the front, CAP on Kyma behind it, OpenAI in the middle.javieryw, published 2024-01-31
An Innovative Language Exchange App developed with SAP Build Apps, CAP, Kyma, and OpenAI
LLM integration changed in @cap-js/ai 1.0.0, 2026-04-28. Affects Runnable code.
From Concept to action: Hands-On with the CAP Operator and the Partner Reference ApplicationFrom Concept to action: Hands-On with the CAP Operator and the Partner Reference ApplicationThe CAP Operator applied to a real application rather than a sample of its own — SAP's Partner Reference Application, taken from plugin integration through containerisation to custom resources. The transition to CRDs is the part that repays attention: it is where the deployment stops being an mta and becomes Kubernetes.ChristianWeiss, published 2026-05-21
Full Stack TypeScript App for Cloud Foundry - Sample RepositoryFull Stack TypeScript App for Cloud Foundry - Sample RepositoryA whole repository rather than a snippet: a CAP Node.js service and a freestyle SAPUI5 application, both in TypeScript, arranged for Cloud Foundry. The build process gets its own section, which is where a TypeScript full-stack project usually goes wrong.former_member66, published 2021-12-09
Full Stack TypeScript App for Cloud Foundry - Sample Repository
TypeScript patterns changed in @cap-js/cds-typer 0.5.0, 2023-07-25. Affects A recipe, Runnable code.
The CAPstone Project: A Journey from Component to CloudThe CAPstone Project: A Journey from Component to CloudA React and Vite front end on a CAP backend, written for two readers at once — the React developer curious about SAP, and the CAP developer wondering about modern front ends. Predates CAP's own React and Vue support.LOKESH_GHOSH, published 2025-07-05
The End2End Journey: Advocates Service – CAP Service, OData V2/4 & REST in One single ProjectThe End2End Journey: Advocates Service – CAP Service, OData V2/4 & REST in One single ProjectOne CAP service exposing OData V2, OData V4 and REST at the same time, which is unusual enough to be worth the read on its own. Part of an end-to-end series, deployed on Cloud Foundry against HANA Cloud, so the protocol question sits inside a whole application rather than a snippet.KRiedelsheimer, published 2021-05-06
The End2End Journey: Advocates Service – CAP Service, OData V2/4 & REST in One single Project
OData changed in @cap-js-community/odata-v2-adapter 1.10.0, 2023-04-05. Affects A recipe, Runnable code.
Under no capability
API Policy - FAQAPI Policy - FAQSAP’s June 2026 FAQ, version 1.3, explains the scope and use conditions of the SAP API Policy, including published and non-published APIs, ADT developer access, AI-driven usage and third-party MCP servers. It also addresses data extraction and the responsibilities of customers and partners. The FAQ is informational: it does not modify contracts, and applicable agreements and product documentation prevail if they conflict with it.
Build a Supply Risk API with API CompositionBuild a Supply Risk API with API CompositionBuilds a supply-risk Business Data Graph with API Composition from four publicly hosted mock APIs. The walkthrough joins plant, address-risk and material-stock entities, tests an expanded OData query and exports the URL/OpenAPI specification for the following MCP tutorial.Shyam, published 2026-09-23