Errors

Every error uses the same JSON shape, including errors from authentication and rate limiting.

{
  "error": {
    "type": "invalid_request_error",
    "code": "ticket_type_sold_out",
    "message": "VIP is sold out.",
    "param": "items[0].ticket_type",
    "details": { "items.0.quantity": ["Only 0 left."] },
    "request_id": "req_01JB...",
    "doc_url": "https://docs.vabu.live/errors.html#ticket_type_sold_out"
  }
}

Field	Meaning
type	The class of error. See below.
code	A stable, specific code. Branch on this.
message	A sentence for people. It can change, so do not match on it.
param	The request field at fault, when there is one.
details	Validation messages per field.
request_id	req_.... Include it in support requests.
doc_url	A link to the matching entry on the error codes page.

Types

Type	HTTP	When	Retry?
invalid_request_error	400, 404, 409, 422	Bad input, missing resource, conflict or validation	No. Fix the request.
authentication_error	401	Missing or bad key or token	No.
permission_error	403	Scope, role or product not enabled	No.
rate_limit_error	429	You hit a limit	Yes, after Retry-After.
idempotency_error	409	Key reused with a different body, or still in flight	See idempotency.
provider_error	502	An upstream provider failed	Yes, with backoff.
api_error	500, 503	Our fault	Yes, with backoff.

Retrying

Retry 429, 502, 500 and 503 with exponential backoff and jitter, and send an Idempotency-Key so a retry cannot repeat the action. Do not retry other 4xx responses without changing the request.

New error codes can be added at any time. Treat an unknown code as its type.