event_key_generator.md

Event key generator

moduleName	eventKeyGenerator
Module type	processor
Input event	raw
Output event	raw

This module allows you to generate an identifier of the event type. It will join all values of specified event metadata keys (if found) using the separator and use it as the new identifier.

moduleConfig

# Separator to be used to join the selected metadata values.
filedSeparator: ":"
# If the event key should be overwritten if it's already set for the input event.
overrideExistingEventKey: true
# Keys which values will be joined as the resulting eventKey in specified order
metadataKeys:
  - <metadata_key>

If given metadata_key is missing in the event's metadata, the empty value is not included in the resulting eventKey.

E.g. given the following configuration:

metadataKeys:
  app: test_app
  name: test_name
  endpoint: test_endpoint

The following metadata {'app': 'test_app', 'endpoint': 'test_endpoint'} would result to event_key test_app:test_endpoint.