Referencing IRIs in queries - Neptune Analytics

Referencing IRIs in queries

There are two ways to reference an IRI in an openCypher query:

  • Wrap the full IRI inside < and > . Depending on where in the query this IRI is referenced, the IRI is then provided as a String, such as "<http://example.com/Alice>" (when the IRI is the value of property ~id), or in backticks such as `<http://example.com/Alice>` (when the IRI is a label, or property key). 

    CREATE (:`<http://xmlns.com/foaf/0.1/Person>` {`~id`: "<http://example.com/Alice>"})

  • Define a PREFIX at the start of the query, and inside the query reference an IRI using prefix::suffix. For example, after PREFIX ex: <http://example.com/> the reference ex::Alice also references the full IRI <http://example.com/Alice>. 

    PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX ex: <http://example.com/>
CREATE (: foaf::Person {`~id`: ex::Alice})

Additional query examples below show the use of both full IRIs and the prefix syntax.