Metrics endpoint should inform about supported request types, HTTP code change to be considered ----------------------------------------------------------------------------------------------- Key: WFWIP-152 URL: https://issues.jboss.org/browse/WFWIP-152 Project: WildFly WIP Issue Type: Enhancement Components: MP Metrics Reporter: Rostislav Svoboda Assignee: Jeff Mesnil Priority: Minor Metrics endpoint could inform about supported request types, current response is {code} curl http://127.0.0.1:10090/metrics/vendor -X PUT No exporter found for method PUT and media type {code} OpenLiberty provide info which HTTP verbs are supported {code} curl https://localhost:9443/metrics/ --insecure -u theUser:thePassword -X PUT Error 405: CWMMC0001I: The method request type must be GET or OPTIONS. {code} Side comment - We return {{< HTTP/1.1 406 Not Acceptable}}, OpenLiberty returns {{< HTTP/1.1 405 Method Not Allowed}} which feels more appropriate. Spec speaks only about 404 and 406. {code} • 404 if a directly-addressed item does not exist. This may be a non-existing sub-tree or non- existing object • 406 if the HTTP Accept Header in the request cannot be handled by the server. {code} But 406 only mentions Accept Header, not the HTTP verb.