For the bulk delete of entities we agreed on developing an endpoint, which will accept a map which maps the entity type to the list of entity ids to be deleted in the request body.

The endpoint for bulk deleting entities is:

POST /api/entities/delete

and it accepts in the request body:

[
  'reports' : [ 'reportId1', 'reportId2', ...,
  'collections' : [ 'collectionId1', 'collectionId2', ...,
  'dashboards' : [ 'dashboardId1', 'dashboardId2', ...,
]

AT:

the endpoint has been developed
addiniotal ITs have been added which verify the correct functionality of the endpoint
the REST documentation has been updated accordingly