I have a case where I load incoming bulk data into a different index
each time, depending on which one is available. I know I could alter
each action_and_meta_data statement in the post data to point at that
index, but I'd rather just use an endpoint like /my_index/_bulk (and
possibly even /my_index/my_type/_bulk).
Would it be possible to extend the API in this way? If so, can others
see some use in this? When the index and type are included in the URI,
I would expect "_index" and "_type" specifications in
action_and_meta_data to be ignored.