queryRequiredSingleJSON abstract method
Executes a query, returning the result as a JSON encoded String
.
The query must return exactly one element. If the query returns more than one element, a ResultCardinalityMismatchError error is thrown. If the query returns an empty set, a NoDataError error is thrown.
For details on args
see the edgedb
library
docs page.
Implementation
Future<String> queryRequiredSingleJSON(String query, [dynamic args]);