---
version: '2.0'

wf:
  type: direct

  tasks:
    hello:
      action: std.echo output="Hello"
      wait-before: 1
      publish:
        result: <% task().result %>
      on-success: bye

    bye:
      action: std.echo output="Bye"
      publish:
        result: <% $.result + ', ' + task().result %>

wf1:
  type: reverse
  tags:  [tag]
  input:
    - farewell

  tasks:
    addressee:
      action: std.echo output="John"
      publish:
        name: <% task(addressee).result %>

    goodbye:
      action: std.echo output="<% $.farewell %>, <% $.name %>"
      requires: [addressee]