Figure out what to do about endpoints that require further authentication

[iamcal]

See Instagram in #468

[Saleh56]

Sss

[raae]

Could there be an idea to add to the endpoint information the param needs to be set for authentication? It could both indicate the need for authentication and disclose the param needed.

For instagram then:

---
- provider_name: Instagram
  provider_url: https://instagram.com
  endpoints:
  - schemes:
      - http://instagram.com/*/p/*,
      - http://www.instagram.com/*/p/*,
       ...
    url: https://graph.facebook.com/v9.0/instagram_oembed
    auth_param: access_token
    docs_url: https://developers.facebook.com/docs/instagram/oembed
    example_urls:
      - https://graph.facebook.com/v9.0/instagram_oembed?url=https%3A%2F%2Finstagram.com%2Fp%2FV8UMy0LjpX%2F
    formats:
      - json
    notes:
      - 'This endpoint requires a facebook app with the oEmbed Product attached'
...