deleteRelation abstract method

Future<WriteResult> deleteRelation(
  1. String resourceKey,
  2. Object id,
  3. RelationDescriptor relation,
  4. Object childId,
)

DELETE /{resource}/{id}/relations/{relation}/{childId} — removes one child row, resolved through the relationship exactly as updateRelation.

Implementation

Future<WriteResult> deleteRelation(
  String resourceKey,
  Object id,
  RelationDescriptor relation,
  Object childId,
);