Take a rider's check-in back (idempotent)

POST

/participants/{participant_id}/check-in/undo

curl --request POST \
  --url https://quikstik-core.fly.dev/participants/2489E9AD-2EE2-8E00-8EC9-32D5F69181C0/check-in/undo \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-tenant-id: 2489E9AD-2EE2-8E00-8EC9-32D5F69181C0' \
  --data '{ "at_ms": 1, "by": "example" }'

• Production

Appends rider_check_in_undone. Undoing the LAST checked-in rider returns the booking checked_in → booked. A repeat is {already: true}. Session, or an operator key scoped bookings.write.

Authorizations

• bearerAuth
• operatorKey

Parameters

Path Parameters

participant_id

required

string format: uuid

Header Parameters

x-tenant-id

required

string format: uuid

Tenant identifier (UUID).

Authn/authz semantics are intentionally TBD for this contract slice; this header exists to keep the contract explicitly multi-tenant from day 0.

Request Body

Media typeapplication/json

object

at_ms

integer format: int64

by

string

<= 80 characters

Example ^generated

{
  "at_ms": 1,
  "by": "example"
}

Responses

200

OK.

Media typeapplication/json

object

key

additional properties

any

Example ^generated

{}

401

Missing or invalid session bearer token

Media typeapplication/json

object

reason

required

Stable, machine-readable reason code (e.g. “sold_out”, “processor_not_configured”, “rail_refused”).

string

Example

{
  "reason": "sold_out"
}

403

The session’s effect authority does not cover this operation

Media typeapplication/json

object

reason

required

Stable, machine-readable reason code (e.g. “sold_out”, “processor_not_configured”, “rail_refused”).

string

Example

{
  "reason": "sold_out"
}

404

No such rider.

409

bad_transition (the booking is done).

422

bad_body.

503

No durable backend is wired for this operation (fail-closed)

Media typeapplication/json

object

reason

required

Stable, machine-readable reason code (e.g. “sold_out”, “processor_not_configured”, “rail_refused”).

string

Example

{
  "reason": "sold_out"
}