callback Plugin

This plugin allows to create callbacks. A callback can be created from a step using this plugin. Once the callback has been created, you can pause your resolution until the callback has been successfully called.

Configuration

Fields	Description
action	create to create a callback or wait to wait a callback
schema	only valid if action is create: validate the body provided during the call of the callback
id	only valid if action is wait: ID of the callback to wait

Example

First, the callback has to be created:

create-cb:
  action:
    type: callback
    configuration:
      action: create
      schema: |-
        {
          "$schema": "http://json-schema.org/schema#",            
          "type": "object",
          "additionalProperties": false,
          "required": ["success"],
          "properties": {
            "success": {
              "type": "boolean"
            }
          }
        }

In a second step, you can wait for the callback resolution:

wait-cb:
  dependencies:
    - create-cb
  action:
    type: callback
    configuration:
      action: wait
      id: '{{field `step` `create-cb` `output` `id`}}'

Requirements

The base URl for callbacks must be defined in callback-config configuration key. The value must be a map with at least the base_url key which contains the base URL to reach the callback API from callers. You can also append a path_prefix key to override the default value (/unsecured/callback/).

Examples

In those examples, <ID> will be the callback ID and <T> the callback token.

Base URL	Path prefix	URL
https://foo.bar	-	https://foo.bar/unsecured/callback/<ID>?t=<T>
https://foo.bar	/	https://foo.bar/<ID>?t=<T>
https://foo.bar	/foobar/	https://foo.bar/foobar/<ID>?t=<T>

Return

Callback create action output

Name	Description
id	The public identifier of the callback
url	The public URL of the callback
schema	The sanitized schema

Callback wait action output

Name	Description
id	The public identifier of the callback
date	The call date
body	The provided body during the call