PersonIndependent
Mauricio Lauffer
Capabilities
Provides
Build and dev-server toolingUI5Build and dev-server toolingServing an app locally and building it for deployment — proxying a backend, transpiling, bundling, and shaping the result for whatever will host it.Custom controls and librariesUI5Custom controls and librariesExtending the set of controls an app is built from: a control of its own, a wrapper around a third-party widget, or an icon font registered with the framework, packaged so another app can reuse it. Distinct from [Web Components interop](capability:ui5-web-components), which brings in standard custom elements, and from [generators](capability:generators), which scaffold a control project rather than being one.Data bindingUI5Data bindingKeeping a control and a model in step in both directions, including the formatting, type conversion and validation that sit between the two.Input validationCAPABAPUI5Input validationRejecting bad input before it reaches the database. While this can be done manually inside a handler, there are solutions in place to derive type, range, enum and mandatory checks from the model definitions.LintingCAPUI5LintingCatching in the editor what would otherwise be caught at deploy time, or not at all — problems in source code and models and in the project's configuration, found by rules rather than by review.LoggingCAPBTPABAPUI5LoggingSeeing what a running service did, in a form something can read afterwards — levels, a formatter that suits a laptop and one that suits a log service.Seed dataCAPABAPUI5Seed dataGetting realistic data into a service so it can be developed and demonstrated — initial data, per-tenant content, and believable volumes for testing.TypeScript supportUI5TypeScript supportWriting apps and libraries in TypeScript — the type definitions, the module syntax the loader expects, and the build step that gets from one to the other.UI5 testingUI5UI5 testingProving a UI still works — unit tests over controllers and formatters, integration tests that drive real controls, and end-to-end runs against a served app.
Contributes to
AccessibilityUI5AccessibilityMaking a UI usable with a screen reader, with a keyboard alone and without seeing the layout: accessible names on controls, a heading order, landmarks, focus handling and announcements. Target size for a finger is [touch operation](capability:ui5-touch-uis).Clean code conventionsABAPClean code conventionsThe naming, structure and language-subset conventions that make source code readable across a team — and the question of which of them a checker can enforce.Database connectorsCAPBTPABAPDatabase connectorsConnecting an application’s data model and queries to a database, including the differences in supported queries, types and schema management between database implementations. Changing an existing schema belongs to [schema evolution](capability:schema-evolution).GeneratorsCAPABAPUI5GeneratorsGetting from nothing to a project that runs, and from a project that runs to one that has the piece you just decided you need. Two different moments: the first is a one-time decision about layout, the second recurs for the life of the project.GraphQLCAPGraphQLServing the same model over GraphQL instead of OData — one endpoint, the client naming the fields it wants, for consumers who expect that shape rather than an OData one.Integrated frontend dev serverCAPUI5Integrated frontend dev serverServing a frontend and its backend services together during development, so they can be reached through one local origin. Serving prebuilt files and integrating a frontend toolchain that assembles resources on demand are different requirements.Key-user adaptationUI5ABAPBTPKey-user adaptationChanging a delivered app without modifying it — moving, hiding and adding elements as a layered set of changes that survive an upgrade.Routing and navigationUI5Routing and navigationTurning a URL hash into a view, and a view change back into a URL — so a deep link, a browser back button and a refresh all land where the user expects in a single-page app.Source controlABAPSource controlKeeping source code and development objects in version control, comparing their revisions, and moving them between development environments. Managed delivery of changes belongs to [transport management](capability:change-promotion).Static analysisABAPStatic analysisCatching problems in code before it runs: naming, obsolete statements, security findings, and compatibility with a target environment. Style linting, security scanning and cloud-readiness checks are often treated as one concern.TelemetryCAPABAPBTPTelemetrySeeing what a running service did — traces across handlers and database calls, metrics, and correlation that survives an async boundary.TestingCAPBTPTestingProving the service still does what it did — against the model and the handlers, without a deployed system and without a database somebody has to keep clean.ThemingUI5ThemingApplying a consistent visual identity across every control, including the parameters an app may read and the custom themes an organisation may build.Web Components interopUI5Web Components interopUsing standards-based custom elements inside an app, and the question of which control set an app should be built from at all, two concerns that are often answered as one.
Entries
Group by41 of 41 entries
EntrySignals
Maintains
cap-js-mockdatacap-js-mockdataA cds add command that generates CSV seed files into db/data from @Mockdata annotations on your entities, filling each column with values from the Faker module the annotation names.independent, cap
Quiet Release and repository quiet for 27 months.
Functional boundary Not a test-data factory. It writes files at build time to seed a database, so it does not build fixtures inside a unit test. The declared peer range stops at cds 7 — nothing says it fails on 9, but nothing says it was tried either.
CSV seed data generated from @Mockdata annotations with Faker
eslint-plugin-better-cap-configeslint-plugin-better-cap-configA set of ESLint rules that read CAP configuration and flag the cds settings that have since been deprecated, putting that check in the linter a project already runs, with no dependencies of its own.independent, cap
ESLint rules flagging deprecated CAP configuration
jest-environment-ui5jest-environment-ui5A Jest test environment named ui5 that boots UI5 from a local HTML file into jsdom, so UI5 unit tests run in Node.js with no web server and no browser.independent, ui5
Jest environment running UI5 unit tests in Node.js
openui5-error-collectoropenui5-error-collectorA UI5 library that collects a running app's JavaScript errors, unhandled Promise rejections and UI5 log events, and can post them to a backend with navigator.sendBeacon.independent, ui5
Release and repository quiet for 43 months.
UI5 library collecting an app's JavaScript errors
openui5-model-json-crudopenui5-model-json-crudAn OpenUI5 library that extends JSONModel to send CRUD requests over HTTP with fetch, so its calls return Promises; the README documents the read method only.independent, ui5
OpenUI5 JSONModel extension with CRUD over HTTP
openui5-model-odata-v2-odatapromiseopenui5-model-odata-v2-odatapromiseAn OpenUI5 library that extends the OData V2 model, sap.ui.model.odata.v2.ODataModel, to support Promises; its README documents no usage, installation or API.independent, ui5
OpenUI5 OData V2 model extension with Promises
openui5-passwordopenui5-passwordAn OpenUI5 input control of password type that checks the typed value against length and character-class rules set as properties, and scores password strength in a separate property.independent, ui5
OpenUI5 password input with strength scoring and rules
openui5-smart-mockserveropenui5-smart-mockserverAn extended UI5 MockServer that generates meaningful mock data with Faker.js, from the metadata's sap:semantics annotations or from rules that map an OData property to a Faker method.independent, ui5
UI5 MockServer extension generating mock data with Faker.js
openui5-touropenui5-tourAn OpenUI5 control library for a step-by-step guided tour inside a UI5 app, where each TourStep has a title, content, a target control from the view and a placement.independent, ui5
OpenUI5 control library for guided app tours
openui5-validatoropenui5-validatorAn OpenUI5 library that validates the fields of a view against a JSON schema using Ajv, returning a verdict and a list of failures and leaving reporting to the user to the app.independent, ui5
OpenUI5 library validating view fields against JSON schema
sap-cap-validator-pluginsap-cap-validator-pluginA CAP plugin that checks incoming data against JSON Schema rules written as @Validator annotations on model elements, evaluated by Ajv, with no handler to register.independent, cap
Quiet Release and repository quiet for 30 months.
Functional boundary The annotation sits on a single element, so a rule that spans two fields, or one that needs a lookup, has nowhere in it to go.
CAP plugin validating input against @Validator JSON Schema rules
ui5-deployerui5-deployerA custom module for UI5 Tooling that deploys Fiori/UI5 apps to SAP NetWeaver ABAP, SAP Cloud Platform Neo or Cloud Foundry, configured in a deployer section of ui5.yaml.independent, ui5
UI5 Tooling module deploying Fiori/UI5 apps to SAP systems
ui5-task-dts-generatorui5-task-dts-generatorA UI5 builder task that generates d.ts files, TypeScript type declarations, during the build of a UI5 library written in JavaScript, by wrapping @ui5/dts-generator.independent, ui5
UI5 builder task generating d.ts type declarations
ui5-task-minifierui5-task-minifierA UI5 builder task that minifies the HTML, CSS and JSON files the UI5 builder leaves as they are, with one switch per file type, using html-minifier-terser and clean-css.independent, ui5
UI5 builder task minifying HTML, CSS and JSON files
vitest-environment-ui5vitest-environment-ui5A Vitest environment named ui5 that boots UI5 from a local HTML file into jsdom, so UI5 unit tests run in Node.js with no web server and no browser.independent, ui5
Vitest environment running UI5 unit tests in Node.js
wdio-qunit-servicewdio-qunit-serviceA WebdriverIO service that runs QUnit HTML test pages in a browser and reports the results as WebdriverIO test suites, presented as a drop-in replacement for Karma-based QUnit setups.independent, ui5
WebdriverIO service running QUnit test pages
Contributes to
@cap-js/cds-dbs@cap-js/cds-dbsThe monorepo behind CAP's SQL database services — the base service, SQLite, PostgreSQL and HANA all live here, which is why they version together.sap official, cap
Monorepo of CAP's SQL database services
@cap-js/cds-test@cap-js/cds-testTest support for CAP Node.js, installed as a dev dependency: it starts the project's server for the test, hands the test an HTTP client bound to it, and carries the assertions.sap official, cap
Test support for CAP Node.js: server start, HTTP client, assertions
@cap-js/db-service@cap-js/db-serviceThe base every CAP database service is built on: the shared query translation and pooling that SQLite, PostgreSQL and HANA specialise rather than reimplement.sap official, cap
Base service shared by CAP's SQLite, PostgreSQL and HANA services
@cap-js/graphql@cap-js/graphqlA protocol adapter that generates a GraphQL schema from the model and serves it, so the same services answer GraphQL without a second definition of them.sap official, cap
GraphQL protocol adapter generated from the CDS model
@cap-js/hana@cap-js/hanaThe HANA database service — the production default, on the same streamlined architecture as the SQLite and PostgreSQL services.sap official, cap
SAP HANA database service for CAP
@cap-js/postgres@cap-js/postgresThe PostgreSQL database service — the production option for running CAP off HANA, sharing the base service with the other three.sap official, cap
PostgreSQL database service for CAP
@cap-js/sqlite@cap-js/sqliteThe SQLite service, in memory during the inner loop — which is why a CAP project runs before anyone has provisioned a database.sap official, cap
SQLite database service for CAP, in memory during development
@cap-js/telemetry@cap-js/telemetryAutomatic OpenTelemetry instrumentation for CAP Node.js services and their database calls, exported as traces and metrics to the console, SAP Cloud Logging, Dynatrace, Jaeger or an OTLP endpoint.sap official, cap
OpenTelemetry instrumentation for CAP services
@openui5/sap.ui.core@openui5/sap.ui.coreThe OpenUI5 core: the module loader, the MVC runtime, data binding, routing, theming and the test stack, which is everything a UI5 app does before a single community package is added.sap official, ui5
Framework core: module loader, MVC runtime, binding, routing, theming
@ui5/cli@ui5/cliThe UI5 Tooling command line for project setup, the local dev server and the build, which defines a UI5 project's shape and its two extension points, custom middleware and custom tasks.sap official, ui5
UI5 Tooling command line for project setup, dev server and build
abapGitabapGitA Git client written in ABAP that runs inside the system, so objects are cloned, pulled and pushed without leaving it; with no package manager in ABAP, a cloned repository is how code is distributed.community org, abap
Git client written in ABAP that runs inside the system
abapOpenChecksabapOpenChecksAn open-source rule pack for SAP Code Inspector and ABAP Test Cockpit, installed via abapGit and activated as a check variant.independent, abap
Open-source rule pack for SAP Code Inspector and ATC
cds-plugin-ui5cds-plugin-ui5A CDS plugin that runs the UI5 CLI express middlewares inside the CDS server, so a UI5 CLI project is served from the same port as the services, mounted under a path from its ui5.yaml.community org, cap
For a deployed application's UI. The README adds it with `npm add cds-plugin-ui5 -D`, a development dependency of the CDS server, and states nothing about a build or a deployment.
UI5 CLI middlewares running inside the CDS server
Clean ABAPClean ABAPSAP's open, versioned style guide for ABAP: the answer to how a piece of ABAP should be written, an agreement a team adopts rather than anything to install.sap official, abap
Open, versioned style guide for ABAP
generator-ui5-appgenerator-ui5-appA Yeoman generator, built on the official UI5 tooling, that scaffolds a new UI5 application in one pass, run as a plug-in for Easy-UI5 or standalone, ready for npm start.community org, ui5
Easy-UI5 generator scaffolding a new UI5 application
generator-ui5-ts-appgenerator-ui5-ts-appA Yeoman generator, built on the official UI5 CLI, that scaffolds a new UI5 application in TypeScript with its tsconfig and UI5 CLI configuration, as a plug-in for Easy-UI5.community org, ui5
Easy-UI5 generator scaffolding a TypeScript UI5 application
generator-ui5-ts-app-fclgenerator-ui5-ts-app-fclA generator that scaffolds a UI5 TypeScript application built around the FlexibleColumnLayout and bound to an OData service, asking for the endpoint, entity set, key and fields to show.community org, ui5
Generator for a TypeScript UI5 FlexibleColumnLayout app on OData
SAP-samples/btp-cap-genai-ragSAP-samples/btp-cap-genai-ragA CAP reference application on SAP BTP for GenAI email support, built on SAP AI Core's Generative AI Hub and retrieval-augmented generation over SAP HANA Cloud's Vector Engine.sap official, cap
CAP reference app for GenAI email support with RAG on HANA Cloud
SAP-samples/btp-resource-consumption-monitorSAP-samples/btp-resource-consumption-monitorAn application that monitors an SAP BTP global account's CPEA or BTPEA credit consumption, breaking costs down by directory, subaccount and space and alerting daily when costs, usage or forecasts change.sap official, btp
Never as the figure a billing decision rests on: the repository states that the tool is provided as-is, is not covered by SAP Support, is not a replacement of the official billing documents you receive from SAP, and that the information it provides is purely indicative. Its daily delta is also an approximation over a 24-hour period rather than a hard data point for the consumption on that day, because some services report usage only the day after it happened.
App monitoring SAP BTP credit consumption with alerts on increases
ui5-middleware-livereloadui5-middleware-livereloadA dev-server middleware that adds live reload to the UI5 dev server, reloading the page when the sources in the app's webapp folder change.community org, ui5
Live reload middleware for the UI5 dev server
ui5-middleware-simpleproxyui5-middleware-simpleproxyA UI5 dev-server middleware that proxies requests from the local dev server to a backend system, so the app can reach the backend's services during development.community org, ui5
Dev-server middleware proxying requests to a backend system
ui5-task-transpileui5-task-transpileA UI5 Tooling task that transpiles TypeScript, ES modules and other ES6+ sources during the build so the UI5 runtime can load them.community org, ui5
UI5 Tooling task transpiling TypeScript and ES modules
ui5-task-zipperui5-task-zipperA build task for the UI5 tooling that packages the UI5 build result, the webapp, as a zip archive at the end of the build.community org, ui5
Build task packaging the UI5 build result as a zip archive
ui5-tooling-modulesui5-tooling-modulesA set of UI5 tooling extensions that load and convert plain npm packages into UI5 AMD-like modules, so the UI5 module loader can consume them.community org, ui5
UI5 tooling extensions loading npm packages as UI5 modules
wdio-ui5-servicewdio-ui5-serviceEnd-to-end testing for UI5 as a WebdriverIO service that drives a real browser through UI5's own test API, so a test addresses controls with OPA5-compatible selectors rather than DOM nodes.community org, ui5
Where the login cannot be completed by configuration. Its authentication page states that multi-factor authentication is not supported, because a media break between browser and phone cannot be managed out of the box.
End-to-end testing for UI5 on WebdriverIO with UI5 control selectors
Writing and topics
Piece, what it offersStill applies
SAP Meets the Agentic Web: CAP MCP - UI5 WebMCPSAP Meets the Agentic Web: CAP MCP - UI5 WebMCPA Devtoberfest 2026 session (CAP-42) that puts MCP and WebMCP side by side: MCP exposes a backend to an agent, WebMCP exposes the tools of a web page to whatever agent arrives at it, and only Chrome behind a flag and Cloudflare's Kite browser support the second one today. The CAP half starts with two agents scraping a Fiori elements app with Playwright and browser dev tools, then annotates the catalogue service with the MCP protocol through @cap-js/mcp, after which the agent calls the generated describe tool instead of parsing pages. The UI5 half registers a search-authors tool on the browser's model context API inside the same app, with the cross-origin isolation header the API requires, and lists it through the WebMCP Chrome extension — the agent run against it ends on an exhausted Gemini key rather than a result.published 2026-10-16
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 25x faster mta.yaml build for SAP CAP Node.js projectsA 25x faster mta.yaml build for SAP CAP Node.js projectsOne change to the build descriptor, arrived at after discarding the obvious alternatives — the author reports trying shell scripts, npm caching and offline installs, swapping npm for pnpm, and cds build --no-clean, all of which helped and none of which was this. The value is as much in the record of what was ruled out as in the trick itself.published 2025-03-17
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.
Details
History
- cap-js-mockdataVerdict rings retired. What the ring compressed now lives in readings derived from facts (liveness, compatibility, reach) and in the description fields, so a thing can be dead as a dependency and still worth reading. VISION §9.
- cap-js-mockdataPlacement put it on testing because the README says 'for testing'. Reading what it does moved it: cds add mockdata writes CSV into db/data, which is the seed-data capability — and precisely where that capability already said the core stops. It seeds a database; it does not build fixtures in a test.
- cap-js-mockdataRecording `cds add data` as a version change on seed-data narrowed what this plugin uniquely offers. The verdict stays TRY, but for a smaller reason than yesterday, and saying so is the point of dating verdicts.
- First entry seenDiscovered via npm registry, The discovery pass, npm registry · keywords:sap-cap, Added by hand, GitHub API.
Profile
For your agent
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actor:mauriciolauffer- JSON
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