ng-verifier/src/request_processor.rs

@@ -294,12 +294,11 @@ impl Verifier {
                 ))
             }
             QueryResults::Boolean(b) => {
-                // serialize boolean results as standard SPARQL JSON format
+                if b {
-                let serializer = QueryResultsSerializer::from_format(QueryResultsFormat::Json);
+                    AppResponse::V0(AppResponseV0::True)
-                let result = serializer
+                } else {
-                    .serialize_boolean_to_write(Vec::new(), b)
+                    AppResponse::V0(AppResponseV0::False)
-                    .map_err(|_| "QueryResult serializer error")?;
+                }
-                AppResponse::V0(AppResponseV0::QueryResult(result))
             }
             QueryResults::Graph(quads) => {
                 let mut results = vec![];