obniz/dist/src/json_schema/request/system/ping.yml

obniz sdk for javascript

## YAML Template.
##---
$schema: http://json-schema.org/draft-04/schema#
id: "/request/system/ping"
response: "/response/system/pong"

type: object
required: [ping]
properties:
  ping:
    type: object
    required: [key]
    properties:
      key: {$ref: "/dataArray"}