Module error 

Error type for the Nordnet API client.

Mirrors the documented HTTP status codes (400, 401, 403, 429, 503) plus transport-level failures. Every non-2xx response carries the raw response body string so callers can surface the documented ErrorResponse shape ({"code": ..., "message": ...}) without re-parsing in this layer.

Status mapping (per docs-source/nordnet-api-v2.html):

• 400 -> Error::BadRequest (“Invalid parameter.”)
• 401 -> Error::Unauthorized (“Unauthorized to log in …”)
• 403 -> Error::Forbidden
• 429 -> Error::TooManyRequests (caller decides backoff; the docs suggest 10s, but the library never sleeps or retries — POST/PUT on /orders is non-idempotent and a hidden retry could double-place)
• 503 -> Error::ServiceUnavailable (caller decides backoff; the server’s Retry-After header is preserved on the underlying response but the library does not honor it automatically)
• any other non-2xx -> Error::UnexpectedStatus

Enums

Error

All recoverable failures from the Nordnet API client.