The endpoint takes no request input. Rejects with ApiError when the
backend responds with an error status — its standard
{ "error": "<description>" } body is normalized into the error's
message — and with ApiNetworkError when the request cannot be
completed.
Retrieve the backend message (
GET /api/message).The endpoint takes no request input. Rejects with
ApiErrorwhen the backend responds with an error status — its standard{ "error": "<description>" }body is normalized into the error'smessage— and withApiNetworkErrorwhen the request cannot be completed.