{"action":"opened","issue":{"url":"https://api.github.com/repos/grpc/grpc-java/issues/653","labels_url":"https://api.github.com/repos/grpc/grpc-java/issues/653/labels{/name}","comments_url":"https://api.github.com/repos/grpc/grpc-java/issues/653/comments","events_url":"https://api.github.com/repos/grpc/grpc-java/issues/653/events","html_url":"https://github.com/grpc/grpc-java/issues/653","id":96527514,"number":653,"title":"Q: How to declare rpc method without input and returns messages?","user":{"login":"nickdul","id":5939451,"avatar_url":"https://avatars.githubusercontent.com/u/5939451?v=3","gravatar_id":"","url":"https://api.github.com/users/nickdul","html_url":"https://github.com/nickdul","followers_url":"https://api.github.com/users/nickdul/followers","following_url":"https://api.github.com/users/nickdul/following{/other_user}","gists_url":"https://api.github.com/users/nickdul/gists{/gist_id}","starred_url":"https://api.github.com/users/nickdul/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/nickdul/subscriptions","organizations_url":"https://api.github.com/users/nickdul/orgs","repos_url":"https://api.github.com/users/nickdul/repos","events_url":"https://api.github.com/users/nickdul/events{/privacy}","received_events_url":"https://api.github.com/users/nickdul/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-22T10:09:14Z","updated_at":"2015-07-22T10:09:14Z","closed_at":null,"body":"is it possible to define **rpc** method without *input* and *returns* messages? \r\nsomething like:\r\n```\r\n    service myservice {\r\n        rpc heartbeat() {}\r\n    }\r\n```"}}