The SAP Cloud Application Programming (CAP) model prides itself on enabling rapid application development by abstracting away complexities and letting developers focus on the domain.
CAP’s Calesi (CAP-level Service Interfaces) pattern takes this further by reducing the amount of boilerplate code developers need to write when integrating with SAP BTP services.
One such example of a useful plugin is the Attachments plugin. The CAP Attachments plugin enables developers to seamlessly add file upload and management capabilities to their applications, handling everything from storage integration to UI components out of the box. By abstracting the complexity of working with object stores and file handling it allows developers to implement secure, production-ready attachment functionality out of the box or with minimal code.
This plugin has been available for a while and is heavily adopted by the community. In response to developer feedback about missing features, documentation gaps, and bugs, we’ve spent the last few months upgrading the plugin, and the CAP team is excited to release the “new and improved” attachments plugin for in Java and Node.js.
Here are the latest improvements:
Feature parity – with the recent set of enhancements, both the Node.js (v 3.4.0 onwards) and Java (v 1.2.2 onwards) plugins now have the following features:
New features currently available for the Node.js plugin only (v3.4.0 onwards):
entity Books {\n status : Integer enum {\n submitted = 1;\n fulfilled = 2;\n shipped = 3;\n canceled = -1;\n };\n @Former Member.Hidden : (status = #canceled ? true : false)\n attachments: Composition of many Attachments;\n}3. Translations for all model texts in SAP-supported languages
4. Standard kind to let the plugin automatically decide which object store provider to use
{\n \"cds\": {\n \"requires\": {\n \"attachments\": {\n \"kind\": \"standard\"\n }\n }\n }\n}5. UI5 validation methods to define the maximum file size and accepted media types
annotate my.Books.attachments with {\n content @AcceptableMediaTypes: ['image/jpeg'] @Validation.Maximum: '2MB';\n}You can read the details on the Java and Node.js GitHub pages of the plugin.
And this is not all. We have overhauled the documentation of both the plugins to make sure that you have the latest and most accurate information available.
The team strives to continue enhancing this and other plugins to provide developers with increased productivity.
In case you would like to share some feedback with us, please write to us on cap@sap.com
Ready to try it out? Happy coding!
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