Node RED integration (SPARQL query)

Description:

• Directory-based discovery (using SPARQL) and auto-population

Participant:

• Kunihiko Toumura (@k-toumura)

Activities:

Checked availability of Things and Directories Created UI for querying Directory from Node-RED Tested auto-population feature using participating Things

Current implementation uses following simple SPARQL query:

PREFIX td: <https://www.w3.org/2019/wot/td#>
PREFIX dc: <http://purl.org/dc/terms/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT DISTINCT ?id ?title ?desc
WHERE {
    ?id rdf:type td:Thing;
        dc:title ?title;
        dc:description ?desc.
    FILTER(contains(?desc, "${query}")).
}
LIMIT 100

(${query} = input from Node-RED search UI)

Draft result report is here The slides used in Openday (Oct 11) can be found below:

• Powerpoint
• PDF