Rdf

Rdf#

Overview#

CRUD operations on the RDF named graphs attached to sources. These routes are the high-level entry points used by the UI to upload, download, move, or describe a source’s graph in the configured triplestore.

Access control is delegated to the source layer: the caller must own (or have readwrite on) the source whose graph is being mutated. Read-only routes accept any source visible to the caller via getUserSources.

Modules#

1. Graph payload (graph.js)#

  • GET paginates the N-Triples content of a source’s graph (with optional inclusion of imported graphs).

  • POST accepts chunked multipart uploads (TTL/RDF-XML/OWL/…) and loads the file into the triplestore.

  • DELETE drops the graph attached to a source (does not remove the source descriptor itself).

2. Remote loading (graphUrl.js)#

Fetches an RDF file from a public URL, persists it under data/uploaded_rdf_data/ and loads it into the source’s graph.

3. Graph relocation (graphMove.js)#

Atomically copies all triples from sourceGraphUri to targetGraphUri and clears the original. Used to rename a graph URI without losing data.

4. Graph metadata (graph/info.js, graph/metadata.js)#

Lightweight COUNT(*) and metadata-triple endpoints that feed the UI before a full download (size estimation, title/version display, edition of dc:title, owl:imports, …).

Contents

Files in this directory#

  • graph.js

  • graphUrl.js

Contents