Referral ancestors (inviter chain)

GET/events/:eventId/entries/:entryId/referral-ancestors

Walk the inviter chain upward from the given entry, returned nearest-first. Returns 403 unless the caller is a confirmed participant (CONFIRMED / CHECKED_IN) of the event.

Auth	Login required

Path parameters

eventIdstringrequired

Event ID

entryIdstringrequired

Target entry ID

Query parameters

generationsnumber

Max number of ancestor generations. Default 10 (clamped 1–50)

Response

Field	Type	Description
`entryId`	string	Target entry ID
`entry`	object	Target entry node (lightweight DTO)
`ancestors`	object[]	Ancestors nearest-first (invalid-state parents are disabled: true / user: null)
`truncated`	boolean	true if truncated by invalid state, missing parent, or generation limit

curl https://api.4s.link/events/EVENT_ID/entries/:entryId/referral-ancestors \
  -H "Authorization: Bearer 4s_at_..."

Example response
{
  "entryId": "770fa622-...",
  "entry": {
    "id": "770fa622-...",
    "invitedByEntryId": "660e9511-...",
    "invitationGeneration": 2,
    "invitationRootEntryId": "550e8400-...",
    "user": { "id": "2b3c4d5e-...", "slug": "carol-lee", "firstName": "Carol", "lastName": "Lee" },
    "ticketName": "招待参加"
  },
  "ancestors": [
    {
      "id": "660e9511-...",
      "invitedByEntryId": "550e8400-...",
      "invitationGeneration": 1,
      "invitationRootEntryId": "550e8400-...",
      "user": { "id": "1a2b3c4d-...", "slug": "bob-sato", "firstName": "Bob", "lastName": "Sato" },
      "ticketName": "招待参加"
    }
  ],
  "truncated": false
}