Kg

Kg#

Overview#

Knowledge-Graph builder endpoints. They drive the conversion of relational/CSV data into RDF triples loaded in a source’s named graph, and expose helpers to inspect the underlying database schema. Companion entry point at the root: kg.js (whole-source build).

Modules#

1. Triple generation (triples.js)#

  • POST generates triples from a CSV file or a SQL table for a given source (KGbuilder_main.importTriplesFromCsvOrTable).

  • DELETE removes triples previously generated by KGBuilder for a source, optionally restricted to a subset of tables.

2. Database introspection (data.js, model.js)#

  • data.js reads sample rows from a configured database, or executes a SELECT statement filtered by UserRequestFiltering.

  • model.js returns the table → columns map of a database, used to populate the column pickers in MappingModeler.

3. Graph reset (clearGraph.js)#

Drops every triple from a named graph (SPARQL CLEAR GRAPH). Typically called before a full rebuild.

4. Mapping persistence (mappings.js, mappings/*)#

Saves a mapping document for a source and exposes nested routes to read/list mapping files and recreate triples from them.

5. Asset-level mappings (assets/*)#

Reads global mapping documents shared across mappings targeting the same logical asset.

Contents

Files in this directory#

  • clearGraph.js

  • data.js

  • mappings.js

  • model.js

  • triples.js

Contents