GraphQL over SPARQL
This section describes out approach to generate JSON responses from SPARQL endpoints using GraphQL as a query and mapping language. Mutations are not supported. The GraphQL queries of our approach are self-contained, i.e. no additional server configuration is needed. The endpoint is avilable when running rpt integrate --server, by default http://localhost:8642/graphql. From each GraphQL query a corresponding SPARQL query and result set post processor is created.
Examples
Check out the online demonstrators for examples.
Directives
The following is the set of supported directives:
@prefix @pattern @bind @one and @many @index @join