Wildfly, restart server group - rest

Question

I need to restart a server group, using the HTTP API. I can't figure out what the correct syntax is.
I tried a lot of
HashMap<String, Object> requestMap = new HashMap<>();
requestMap.put("operation", "something-something");
requestMap.put("address", "something-something");
final Response response = managementContext
.request()
.header("X-Requested-By", WildflyUtils.class.getName())
.post(Entity.json(requestMap));
or "by hand":
{"operation":"something-something", "address":"something-something", "json.pretty":1}
I'm guessing around. Does someone know which command is best and what the correct syntax for the address is, or where a useful documentation for the HTTP API is? The official documentation (https://docs.jboss.org/author/display/WFLY10/The+HTTP+management+API) is somewhat small.

Answer 1

I do not know whether it help but I tried with the curl:
curl --digest -u "username:password" 'http://localhost:9990/management' --header "Content-Type: application/json" -d '{"operation":"restart-servers","address":[{"server-group":"your_server_group"}]}'
for standalone:
curl --digest -u "username:password" 'http://localhost:9990/management' --header "Content-Type: application/json" -d '{"operation":"reload","address":[]}'

Answer 2

You should take a look at WildFly 11.0 Model Reference, but I am afraid this does not cover the domain mode.
I had a small demo code here. In your case you should do:
requestMap.put("address", "[\"server-group",\"myServerGroup\"]");
requestMap.put("operation", "restart-servers");
requestMap.put("blocking", "true/false");
requestMap.put("start-mode", "normal/suspend");