name: Get element by key from JSON
inputs:
- {name: Json}
- {name: Key, type: String}
outputs:
- {name: Output}
metadata:
  annotations:
    author: Alexey Volkov <alexey.volkov@ark-kun.com>
implementation:
  container:
    image: stedolan/jq:latest
    command:
    - sh
    - -exc
    - |
      input_path=$0
      output_path=$1
      key=$2
      mkdir -p "$(dirname "$output_path")"
      < "$input_path" jq --raw-output '.["'"$key"'"]' > "$output_path"
    - {inputPath: Json}
    - {outputPath: Output}
    - {inputValue: Key}