# Sample Data
2016-07-11T23:56:42.000+00:00 INFO [MySecretApp.com.Transaction.Manager]:Starting transaction for session -464410bf-37bf-475a-afc0-498e0199f008

# Grok Pattern
%{TIMESTAMP_ISO8601:timestamp} %{LOGLEVEL:log-level} \[%{DATA:class}\]:%{GREEDYDATA:message}

# Structured Data
{
  "log-level": "INFO",
  "message": "Starting transaction for session -464410bf-37bf-475a-afc0-498e0199f008",
  "class": "MySecretApp.com.Transaction.Manager",
  "timestamp": "2016-07-11T23:56:42.000+00:00"
}