Format to make console messages more usage by elastic-client NPM module.

ElasticSearch logging.yml

rootLogger: DEBUG, console

logger:
  action: DEBUG
  com: DEBUG
  indices: DEBUG
  discovery: DEBUG
  mappings: DEBUG
  indexing: DEBUG
  store: DEBUG
  rest: DEBUG
  monitor: DEBUG
  index: DEBUG

appender:
  console:
    type: console
    layout:
      type: pattern
      conversionPattern: '{"category":"%c","message":"%m","type":"%p","thread":"%t","date":"%d"}'

#additivity.index.search.slowlog: true
#additivity.index.indexing.slowlog: true
#additivity.index.create.slowlog: true
#additivity.index.save.slowlog: true
#additivity.index.get.slowlog: true
#additivity.index.put.slowlog: true
#additivity.index.update.slowlog: true