Help with Grok Parsing

Elastic Stack Logstash
1

hi, any help is appreciated. spent quite a bit of time learning and trying to parse below formats in the log file

[Tue Mar 8 00:00:00 2015]instance remoteserver 0.207631 200 GET /rest/v1/api/xyz/abc12345678?role=LEARN&app=ELK&id=4567868&deleg=YES&type=CO HTTP/1.1 remoteserver-p03

Thanks,
RK

2

What do you have so far? Have you tried using http://grokconstructor.appspot.com/?