@metreeca/pipe-sparql

SPARQL processing tasks for @metreeca/pipe.

Provides ready-made @metreeca/flow steps for working with SPARQL repositories in pipelines run by the @metreeca/gear job executor.

Installation

npm install @metreeca/gear                       # the job executor
npm install @metreeca/pipe-sparql                # this package
npm install @metreeca/wire-sparql-<backend>      # repository connector for the target engine

[!IMPORTANT]

Node.js 22 or later is required.

[!WARNING]

TypeScript consumers must use "moduleResolution": "nodenext"/"node16"/"bundler" in tsconfig.json. The legacy "node" resolver is not supported.

Repositories are reached through the backend connectors listed by @metreeca/wire-sparql: install the one for the engine the pipeline targets, together with any peer dependency that the connector itself requires.

Usage

| Task | Description | |----------------------------|---------------------------------| | select() | SPARQL SELECT query runner | | construct() | SPARQL CONSTRUCT query runner | | update() | SPARQL Update request runner | | upload() | RDF graph uploader |

The repository service has no default: a job binds a repository connector to createRepository() once, and every task or sink given no repository of its own then reads from or writes to the repository it reaches.

Support

• open an issue to report a problem or to suggest a new feature
• start a discussion to ask a how-to question or to share an idea

License

This project is licensed under the Apache 2.0 License – see LICENSE file for details.