Type:	Package
Title:	JSON for Linking Data
Version:	2.2.1
Description:	JSON-LD https://www.w3.org/TR/json-ld/ is a light-weight syntax for expressing linked data. It is primarily intended for web-based programming environments, interoperable web services and for storing linked data in JSON-based databases. This package provides bindings to the JavaScript library for converting, expanding and compacting JSON-LD documents.
License:	BSD_3_clause + file LICENSE
URL:	https://docs.ropensci.org/jsonld/, https://ropensci.r-universe.dev/jsonld
BugReports:	https://github.com/ropensci/jsonld/issues
Imports:	V8, jsonlite, curl (≥ 2.7)
RoxygenNote:	5.0.1.9000
Suggests:	spelling
Language:	en-US
NeedsCompilation:	no
Packaged:	2024-10-03 14:12:58 UTC; jeroen
Author:	Jeroen Ooms [aut, cre]
Maintainer:	Jeroen Ooms <jeroenooms@gmail.com>
Repository:	CRAN
Date/Publication:	2024-10-04 12:00:05 UTC

Working with JSON-LD

Description

Wrappers for converting, expanding and compacting JSON-LD documents. All parameters and return values must be JSON strings. Use jsonlite::toJSON and jsonlite::fromJSON to convert between R objects and JSON format. The readme has basic examples.

Usage

jsonld_compact(doc, context, options = NULL)

jsonld_expand(compacted, options = NULL)

jsonld_flatten(doc, context = NULL, options = NULL)

jsonld_frame(doc, frame, options = NULL)

jsonld_from_rdf(rdf, options = list(format = "application/nquads"))

jsonld_to_rdf(doc, options = list(format = "application/nquads"))

jsonld_normalize(doc, options = list(algorithm = "URDNA2015", format =
  "application/nquads"))

Arguments

Examples

# Example from https://github.com/digitalbazaar/jsonld.js#quick-examples
doc <- '{
  "http://schema.org/name": "Manu Sporny",
  "http://schema.org/url": {"@id": "http://manu.sporny.org/"},
  "http://schema.org/image": {"@id": "http://manu.sporny.org/images/manu.png"}
}'

context <- '{
  "name": "http://schema.org/name",
  "homepage": {"@id": "http://schema.org/url", "@type": "@id"},
  "image": {"@id": "http://schema.org/image", "@type": "@id"}
}'

# Compact and expand:
(out <- jsonld_compact(doc, context))
(expanded <- jsonld_expand(out))

# Convert between JSON and RDF:
cat(nquads <- jsonld_to_rdf(doc))
jsonld_from_rdf(nquads)

# Other utilities:
jsonld_flatten(doc)
cat(jsonld_normalize(doc))