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Domain Developer ExperienceOffers A referenceOffers Runnable codeOffers A recipePublished 2026Published 2021Clear all
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Creating an ARC-1 BTP Diagram with Codex and a draw.io SkillCreating an ARC-1 BTP Diagram with Codex and a draw.io SkillThe sap-architecture skill from marianfoo/btp-drawio-skill draws architecture diagrams as editable draw.io files in SAP Architecture Center style by copying the closest of 71 bundled SAP reference templates, or a built-in fallback layout, then validating, scoring and rendering the result for the model to inspect; it takes ideas from Wouter Lemaire's btp-solution-diagram-generator and from claude-drawio-btp-diagram. Codex ran it on an L2 diagram of ARC-1 on BTP Cloud Foundry, reached from VS Code over MCP and passing through XSUAA, Destination, Connectivity and Cloud Connector to an on-premise ABAP system, and the first pass validated and scored 100 while labelling the flows HTTPS and OData/REST instead of MCP and ADT REST. The post draws its boundary from that run: the checks read the file's visual structure and cannot tell whether the architecture is right, and a diagram with no close template still needs manual draw.io work.published 2026-07-09
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.
ABAP Development Automation with ARC-1 and GitHub WorkflowsABAP Development Automation with ARC-1 and GitHub WorkflowsA sample repository puts an ABAP package into GitHub with abapGit and connects GitHub Actions to ARC-1 on BTP through an API key with no write tools, so abaplint on the diff, ABAP Unit and ATC through SAPDiagnose, label-triggered Copilot and Claude reviews, and ST22 dump triage all run as checks on a pull request. The review case is PR #14, where a SAPRead of the activated method let Claude state that a direct SELECT from MARA was new in the PR and not yet active in SAP, which a diff-only review cannot know. The test gate reads activated objects, so a team that pushes before activation needs a sandbox or a pull-and-activate step, and pulling a merged change back into SAP is named as the next step, not built.published 2026-05-12
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
Part 1: How to create CAPM project in BASPart 1: How to create CAPM project in BASThe claim in the opening is the interesting part — database, service and UI without switching technologies — and then the project that follows from it. Part one, and it stops at a project that runs.Vennilla00, published 2026-03-05
Part 1: How to create CAPM project in BAS
Generators changed in @sap/cds-dk 10.0.3, 2026-07-02. Affects A recipe.
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.
Part 1: How to create CAPM project in BASPart 1: How to create CAPM project in BASThe claim in the opening is the interesting part — database, service and UI without switching technologies — and then the project that follows from it. Part one, and it stops at a project that runs.Vennilla00, published 2026-03-05
Part 1: How to create CAPM project in BAS
Generators changed in @sap/cds-dk 10.0.3, 2026-07-02. Affects A recipe.
Before You Upgrade S/4HANA: Static UI5 Checks with MCPBefore You Upgrade S/4HANA: Static UI5 Checks with MCPA UI5 version upgrade checked against one app by pairing two MCP servers: the ui5_version_diff tool added to mcp-sap-docs, which reads a bundle from ui5-lib-diff downloaded once at setup and filters it by version range, change type, library or query text, and @ui5/mcp-server, whose get_project_info, get_version_info, run_ui5_linter and run_manifest_validation say what the app uses and what fails. Run with a ui5-versions-upgrade.md skill on the legacy app from From SEGW and Legacy UI5 to RAP with ARC-1, from SAPUI5 1.84.59 to 1.147.2, the diff range held 985 deprecations and 961 What's New entries, and the linting and manifest validation narrowed that to findings in this app, among them jQuery.sap.require, synchronous bootstrap, the sap_belize theme, sap.m.MessagePage and an old manifest _version. The checks read the source in a local checkout and never the deployed app, so the report is a first pass: a changelog entry is not proof that a workaround can be deleted, and the app still has to be run and tested.published 2026-05-20
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.
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.
ABAP Development Automation with ARC-1 and GitHub WorkflowsABAP Development Automation with ARC-1 and GitHub WorkflowsA sample repository puts an ABAP package into GitHub with abapGit and connects GitHub Actions to ARC-1 on BTP through an API key with no write tools, so abaplint on the diff, ABAP Unit and ATC through SAPDiagnose, label-triggered Copilot and Claude reviews, and ST22 dump triage all run as checks on a pull request. The review case is PR #14, where a SAPRead of the activated method let Claude state that a direct SELECT from MARA was new in the PR and not yet active in SAP, which a diff-only review cannot know. The test gate reads activated objects, so a team that pushes before activation needs a sandbox or a pull-and-activate step, and pulling a merged change back into SAP is named as the next step, not built.published 2026-05-12
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
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.
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