Flatten plugin

It extracts the object keys and adds them into the root with some prefix. If the provided field isn't an object, an event will be skipped.

Example:

pipelines:
  example_pipeline:
    ...
    actions:
    - type: flatten
      field: animal
      prefix: pet_
    ...

It transforms {"animal":{"type":"cat","paws":4}} into {"pet_type":"b","pet_paws":"4"}.

Config params

field cfg.FieldSelector required

Defines the field that should be flattened.

prefix string

Which prefix to use for extracted fields.

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