Rename Fields

Rename event fields with the rename action.

name: example-rename-fields

input:
    echo:
        json: true
        event: |
            {"initialField": "initialValue"}

actions:
- rename:
    fields:
        - initialField: renamedField

output:
    print: STDOUT

# output:
# {
#   "renamedField": "initialValue"
# }