info:
  contact: {}
  description: This is a backup server.
  title: backup API
  version: "1.0"
paths:
  /ping:
    get:
      consumes:
      - application/json
      description: ping
      produces:
      - application/json
      responses:
        "200":
          description: it's ok
          schema:
            type: string
      summary: ping
      tags:
      - ping
swagger: "2.0"