gistfile1.txt

# curl -v -X GET http://localhost:8080/v4/nodes -d 'query=["~","certnamea","**"]'
*   Trying ::1...
* Connected to localhost (::1) port 8080 (#0)
> GET /v4/nodes HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.43.0
> Accept: */*
> Content-Length: 28
> Content-Type: application/x-www-form-urlencoded
>
* upload completely sent off: 28 out of 28 bytes
< HTTP/1.1 400 Bad Request
< Date: Wed, 27 Apr 2016 14:52:57 GMT
< Warning: v4 query API is experimental and may change without warning. For stability use the v3 api.
< Content-Length: 223
< Server: Jetty(9.2.10.v20150310)
<
* Connection #0 to host localhost left intact
'certnamea' is not a queryable object for nodes, known queryable objects are ["certname","deactivated","facts-environment","report-environment","catalog-environment","facts-timestamp","report-timestamp","catalog-timestamp"]%