pub trait ServiceClient: Send + Sync {
// Required method
fn query(
&self,
endpoint: &str,
query: &str,
) -> Result<Vec<BTreeMap<String, String>>, String>;
}Expand description
Executes one SPARQL query against a remote endpoint (the SPARQL Protocol)
and returns its solutions. Implementations own transport, auth, and
timeouts; they typically POST the query with
Accept: application/sparql-results+json and feed the body through
parse_sparql_json_results. Errors are strings, surfaced verbatim as the
query error (or, under SERVICE SILENT, swallowed per the spec) — name the
endpoint in the message, the engine adds no prefix.
Required Methods§
fn query( &self, endpoint: &str, query: &str, ) -> Result<Vec<BTreeMap<String, String>>, String>
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".