Playlists

• GET/playlists
  Playlist listSearch and list public playlists.
• GET/playlists/:playlistId
  Playlist detailRetrieve a playlist's detail (items via a separate endpoint).
• GET/playlists/:playlistId/items
  Playlist itemsRetrieve playlist items. `page` uses numbered pagination, `cursor` uses cursor pagination. groupByDate=true returns date-grouped results.
• GET/playlists/:playlistId/geojson
  Playlist map pinsReturns the 4S events in the playlist that have coordinates as a GeoJSON FeatureCollection. Not paginated; narrow the result with bbox. Filters have the same meaning as GET /playlists/:playlistId/items.
• POST/playlists/:playlistId/preview-external
  Preview an external URL for submissionFetch title, description, image and schedules from an external URL's OG / JSON-LD for the submission form. Only available on playlists that accept submissions.
• POST/playlists/:playlistId/item-requests
  Submit an eventSubmit an event to a playlist. The item is created with status=PENDING and stays hidden until a community admin approves it. Approval and rejection are done through the /manage/playlists endpoints.