Everything in CAP / Java
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Java: Answers in Java
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Offers A referenceOffers A recipeOffers Runnable codeOffers The reasoningStill applies Nothing recordedPublished 2023Published 2020Clear all
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ODataSAP and community
Resolving date serialization issues when using an external OData v2 service with CAPResolving date serialization issues when using an external OData v2 service with CAPDates coming out of an external OData v2 service in a shape CAP does not expect, and what to do about it. A narrow bug report with a fix, and the kind of thing that costs an afternoon if nobody has written it down.pieterjanssens, published 2020-07-09
Analytical queriesUnmapped
E2E: SAP Cloud Platform Internet of Things to SAP Analytics CloudE2E: SAP Cloud Platform Internet of Things to SAP Analytics CloudDevice data from ingestion to chart, with CAP occupying the middle: a CDS-defined persistence on HANA Cloud, and an OData service published from it for Analytics Cloud to consume live. The interesting choice is that CAP is used for the model rather than for business logic — there is barely any.Gunter, published 2020-08-31
Empowering Your Data Analytics with GPT-3 and SAP CAP IntegrationEmpowering Your Data Analytics with GPT-3 and SAP CAP IntegrationFree text in, SQL out, answer back in a sentence — the model writes the query, CAP runs it, and the model turns the rows into prose. Written in the GPT-3 window, so the model access has dated, but the three-step shape has not, and it is a different bet from retrieval: nothing is embedded, the schema is the context.Former Member, published 2023-03-10
AttachmentsSAP only
Upload attachments in a Freestyle UI5 and CAP appUpload attachments in a Freestyle UI5 and CAP appAttachments where the UI is freestyle rather than Fiori elements, so none of the generated upload behaviour applies and both ends have to be written.published 2023-12-19
Data modellingSAP only
#CAP-TechBytes Input Validation#CAP-TechBytes Input ValidationThe annotations one at a time — @mandatory, @assert.unique, @assert.range including the enum form, @assert.format — each with what it produces. Ends on error handling, which is the part that decides whether any of it is usable from a UI.Thajunniza, published 2023-07-07
Database connectorsSAP only
CAP with PostgreSQL DB alternate to HANA Cloud DB - Part 1CAP with PostgreSQL DB alternate to HANA Cloud DB - Part 1Bootstrapping a CAP project on PostgreSQL, framed as a choice that depends on the client rather than on the technology. Short, and part two is where it gets debuggable.ramonlee5, published 2023-10-10
Document outputUnmapped
Using Custom Actions to display PDF from SAP BTP Forms service into a CAP SAPUI5 applicationUsing Custom Actions to display PDF from SAP BTP Forms service into a CAP SAPUI5 applicationA requirement that arrived after the application was finished — render a PDF from the record currently open on an object page — and the join it needed: the Forms service bound to the CAP application, a custom action on the service, and a button on the object page header calling it.rodfior, published 2023-01-30
LLM integrationSAP only
Automate your Job Postings Using Generative AI (ChatGPT) & SAP Build Process Automation AppsAutomate your Job Postings Using Generative AI (ChatGPT) & SAP Build Process Automation AppsA process that drafts its own text: ChatGPT writing job postings, SAP Build Process Automation carrying them through approval, and CAP in between. Presented as a generic pattern the author expects to be adapted rather than copied.shivamshukla12, published 2023-08-10
Creating a meal generator application with SAP Build, Cloud Application Programming and openAICreating a meal generator application with SAP Build, Cloud Application Programming and openAIIngredients in, meal suggestions out, assembled from BTP services plus OpenAI and Google APIs. A small application built for the pleasure of it, and useful here as the plainest example of CAP holding the middle of a generative flow.former_member793421, published 2023-07-17
Empowering Your Data Analytics with GPT-3 and SAP CAP IntegrationEmpowering Your Data Analytics with GPT-3 and SAP CAP IntegrationFree text in, SQL out, answer back in a sentence — the model writes the query, CAP runs it, and the model turns the rows into prose. Written in the GPT-3 window, so the model access has dated, but the three-step shape has not, and it is a different bet from retrieval: nothing is embedded, the schema is the context.Former Member, published 2023-03-10
Input validationSAP only
#CAP-TechBytes Input Validation#CAP-TechBytes Input ValidationThe annotations one at a time — @mandatory, @assert.unique, @assert.range including the enum form, @assert.format — each with what it produces. Ends on error handling, which is the part that decides whether any of it is usable from a UI.Thajunniza, published 2023-07-07
DeploymentCommunity only
A modern workflow for SAP Cloud Integration with CAP and Azure DevOpsA modern workflow for SAP Cloud Integration with CAP and Azure DevOpsCAP used to build tooling rather than an application: the development workflow for Cloud Integration is limited to what the Integration Suite offers, so the author puts a CAP service and Azure DevOps around it. An unusual use of the framework, and the reason to read it.marcel_schork62, published 2023-06-27
Deploying a CAP Application to SAP Cloud Platform, Kyma runtime & connecting an iOS appDeploying a CAP Application to SAP Cloud Platform, Kyma runtime & connecting an iOS appKyma when it was new on the platform, taken from a CAP application through deployment to a native iOS client on the other end. Written by someone working the mobile side, so the parts about what a device needs from the service are more careful than usual.KRiedelsheimer, published 2020-12-17
Multitenant SaaS applications on SAP BTP using CAP? SAP BTP, Kyma Runtime!Multitenant SaaS applications on SAP BTP using CAP? SAP BTP, Kyma Runtime!The Kyma counterpart to the Cloud Foundry Tried-and-True series — the same SaaS application, the same requirements, a Kubernetes runtime underneath. The two code lines were later merged, which the Reloaded post announces.martinfrick, published 2023-04-05
The Future of Continuous Delivery for SAP Cloud SDK and SAP Cloud Application Programming ModelThe Future of Continuous Delivery for SAP Cloud SDK and SAP Cloud Application Programming ModelA direction note on the Continuous Delivery Pipeline that Cloud SDK and CAP projects were expected to start from, written by someone on the inside as its future was being decided. Dated 2020, so read it for what was being weighed rather than for what to run — and as one of the few places the reasoning behind a tooling direction was written down at all.published 2020-11-23
MultitenancySAP only
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
Multitenant SaaS applications on SAP BTP using CAP? SAP BTP, Kyma Runtime!Multitenant SaaS applications on SAP BTP using CAP? SAP BTP, Kyma Runtime!The Kyma counterpart to the Cloud Foundry Tried-and-True series — the same SaaS application, the same requirements, a Kubernetes runtime underneath. The two code lines were later merged, which the Reloaded post announces.martinfrick, published 2023-04-05
Editor supportSAP and community
Developing CAP applications in SAP Business Application StudioDeveloping CAP applications in SAP Business Application StudioThe overview written at the point BAS replaced Web IDE, and it is structured as a comparison — each step of building a CAP application, with the difference from the Web IDE experience called out beside it. Useful now mostly for what it records: which parts of CAP development the editor took over, and when.liat_b, published 2020-07-06
Making CAP Application Development Easier and Faster with the Help of Storyboard in SAP Business Application StudioMaking CAP Application Development Easier and Faster with the Help of Storyboard in SAP Business Application StudioThe Storyboard from the other side — someone who came across it while learning the high-productivity tools, rather than someone who shipped it. It follows the whole arc a CAP project takes through the tool: entities, relationships, services, sample data, a UI, roles, and external resources, each as a thing the diagram can add rather than a file you open.Aryan_Raj_Sinha, published 2023-09-20
Running CAP Node Applications in SAP Business Application StudioRunning CAP Node Applications in SAP Business Application StudioThe Run Configurations tool, which is where binding and mocking live in BAS rather than in a terminal. Three things it does: several named configurations per application in a tree, dependencies bound to real service instances, and OData dependencies mocked. The author notes the configurations are standard launch entries underneath, which is the detail that lets you leave the tool behind if you want to.liat_b, published 2020-10-22
Local developmentSAP only
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
Running CAP Node Applications in SAP Business Application StudioRunning CAP Node Applications in SAP Business Application StudioThe Run Configurations tool, which is where binding and mocking live in BAS rather than in a terminal. Three things it does: several named configurations per application in a tree, dependencies bound to real service instances, and OData dependencies mocked. The author notes the configurations are standard launch entries underneath, which is the detail that lets you leave the tool behind if you want to.liat_b, published 2020-10-22
Plugin authoringSAP only
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
TypingSAP only
TypeScript Sheriff: How can I use TypeScript in the SAP ecosystem? (Part 2 of 3)TypeScript Sheriff: How can I use TypeScript in the SAP ecosystem? (Part 2 of 3)The middle part of three, and the one about SAP: where TypeScript is supported across a side-by-side extension on BTP, as of July 2023. It says the SAP Cloud SDK already generates OData clients as .ts files and UI5 ships types for its controls and modules, the ground of TypeScript support in UI5, while CAP offers standard types and the new @cap-js/cds-typer generates types for a service, which is typing, with the caveat that running cds-ts commands could overwrite what cds-typer generated.MikeDoyle, published 2023-07-05
Draft handlingSAP only
UI5ers Buzz #56: New full-stack UI5 sample app featuring CAP + OData V4 + draft modeUI5ers Buzz #56: New full-stack UI5 sample app featuring CAP + OData V4 + draft modeA sample app published as code rather than described — SAPUI5 over a CAP service with OData V4 and draft mode — and the note that it was built on what the team learned from an application written in March 2020 to help the German Foreign Office repatriate citizens. That provenance is unusual and worth keeping.AndreasKunz, published 2020-11-06
Fiori annotationsSAP only
Create Fiori List Report with object page using CAPM(node.js) ServiceCreate Fiori List Report with object page using CAPM(node.js) ServiceThe short version of the generated-app walkthrough — an existing CAPM Node.js service, and the List Report with Object Page on top of it. Under three thousand characters.Md_sanaullah, published 2023-09-06
SAP Fiori Element using CAP Model – List Report AppSAP Fiori Element using CAP Model – List Report AppThe build half of the same author's pair: the List Report application over the CAP model introduced in the previous post.jhodel18, published 2020-10-19
SAP Fiori Elements using CAP Model - IntroductionSAP Fiori Elements using CAP Model - IntroductionThe introduction to a demo project, and it says where the project came from — exploring what the then-new Fiori tools could do. Context rather than code; the List Report post is the one that builds.jhodel18, published 2020-09-29
Workflow integrationSAP only
A modern workflow for SAP Cloud Integration with CAP and Azure DevOpsA modern workflow for SAP Cloud Integration with CAP and Azure DevOpsCAP used to build tooling rather than an application: the development workflow for Cloud Integration is limited to what the Integration Suite offers, so the author puts a CAP service and Azure DevOps around it. An unusual use of the framework, and the reason to read it.marcel_schork62, published 2023-06-27
Automate your Job Postings Using Generative AI (ChatGPT) & SAP Build Process Automation AppsAutomate your Job Postings Using Generative AI (ChatGPT) & SAP Build Process Automation AppsA process that drafts its own text: ChatGPT writing job postings, SAP Build Process Automation carrying them through approval, and CAP in between. Presented as a generic pattern the author expects to be adapted rather than copied.shivamshukla12, published 2023-08-10
Reference appsCommunity only
UI5ers Buzz #56: New full-stack UI5 sample app featuring CAP + OData V4 + draft modeUI5ers Buzz #56: New full-stack UI5 sample app featuring CAP + OData V4 + draft modeA sample app published as code rather than described — SAPUI5 over a CAP service with OData V4 and draft mode — and the note that it was built on what the team learned from an application written in March 2020 to help the German Foreign Office repatriate citizens. That provenance is unusual and worth keeping.AndreasKunz, published 2020-11-06