/fact-names endpoint can be used to retrieve all known fact names.
Note: The v2 API is deprecated. We recommend that you use the v3 API instead.
This will return an alphabetical list of all known fact names, including those which are known only for deactivated nodes.
curl -X GET http://localhost:8080/v2/fact-names ["kernel", "operatingsystem", "osfamily", "uptime"]
The response will be in
application/json, and will contain an alphabetical
JSON array containing fact names. Each fact name will appear only once,
regardless of how many nodes have that fact.
[<fact>, <fact>, ..., <fact>, <fact>]