how to config coordinator drop data rules

Hi, all,
Is there any doc explains how to config coordinator drop rules? Because ther is no WebUI on my linux machine, so I have to config drop rules using http endpoint. While I can’t find any examples.
Besides, is there any doc that explains all the function of the query inerface? For example, I can send a request to http://overlord:port/druid/v2/?pretty, to execute a query. Send a request to http://ip:port/druid/indexer/v1/supervisor to start an index service. So, is there any doc lists all the URI I can use? And explains the function of each URI.

Yufeng Wang