How I integrated Medium with Huginn.

gistfile1.txt

RssAgent:
{
  "expected_update_period_in_days": "365",
  "clean": "false",
  "url": "http://drwho.virtadpt.net/rss/feed.xml"
}

ChangeDetectorAgent:
{
  "property": "{{last_updated}}",
  "expected_update_period_in_days": 31
}

PostAgent:
{
  "post_url": "https://api.medium.com/v1/users/{% credential medium_user_id %}/posts",
  "expected_receive_period_in_days": "365",
  "content_type": "json",
  "method": "post",
  "payload": {
    "title": "{{ title }}",
    "contentFormat": "html",
    "content": "{{ content }}",
    "canonicalUrl": "{{ url }}",
    "tags": [
      "crosspost",
      "personal",
      "fixme"
    ],
    "publishStatus": "public"
  },
  "headers": {
    "Authorization": "Bearer {% credential medium_integration_token %}",
    "Accept-Charset": "utf-8"
  },
  "emit_events": "true",
  "no_merge": "true"
}