Event announcement detail

GET/events/:eventId/announcements/:id

Retrieve a single event announcement. Participants only.

Auth	Login required

Path parameters

eventIdstringrequired

Event ID or slug.

idstringrequired

Announcement ID.

curl https://api.4s.link/events/EVENT_ID/announcements/ID \
  -H "Authorization: Bearer 4s_at_..."

Example response
{
  "id": "an1a2b3c-...",
  "title": "会場変更のお知らせ",
  "content": "...",
  "createdAt": "2026-08-18T00:00:00.000Z"
}