barnard59-graph-store

SPARQL Graph Store Protocol support for Linked Data pipelines.

This package provides operations to read and write from a SPARQL Graph Store.

Operations

The operation names match the HTTP methods in lower case.

get ({ endpoint, graph, user, password })

This operation reads a named graph from the given SPARQL Graph Store. A Readable stream of RDF/JS Quad objects is returned. The following options are supported:

• endpoint: The URL of the Graph Store endpoint as a string.
• graph: The named graph which should be read as a string or RDF/JS Term. The default graph will be read if an empty string is given or the option is not given at all.
• user: User for basic authentication.
• password: Password for basic authentication.

post ({ endpoint, user, password, maxQuadsPerRequest })

This operation appends quads to the given SPARQL Graph store. A Writable stream of RDF/JS Quad objects is returned. The following options are supported:

• endpoint: The URL of the graph store endpoint as a string.
• user: User for basic authentication.
• password: Password for basic authentication.
• maxQuadsPerRequest: The maximum number of quads per request until a new request is made. (default: 500000)

put ({ endpoint, user, password, maxQuadsPerRequest })

This operation appends quads to the given SPARQL Graph store. A Writable stream of RDF/JS Quad objects is returned. The following options are supported:

• endpoint: The URL of the graph store endpoint as a string.
• user: User for basic authentication.
• password: Password for basic authentication.
• maxQuadsPerRequest: The maximum number of quads per request until a new request is made. (default: 500000)

Examples

See the barnard59-examples repository for working example pipelines.