Function map_command_err 

pub fn map_command_err(err: BcsApiError) -> Error

A command that failed: only answers that prove the broker did not act become definite errors. No answer, a break, HTTP 5xx or an unreadable answer may have reached the broker: Error::Unknown, never retried by the library.

Protocol error	Public error
HttpError without a status (no answer, a break, a timeout) or with status 500 and above	[Error::Unknown]
ParseError (the answer cannot be read), WsError	[Error::Unknown]
HttpError with status 400 to 499, except 429	[Error::Rejected] with code http_<status> and the broker’s message
everything else (429, AuthError, NotFound, ValidationError, …)	as in map_err

Note that ValidationError (the usual way BCS refuses an order) is [Error::Rejected] with code validation, and that NotFound is [Error::Rejected] with code not_found, as in map_err.

Examples

use brokapi_bcs_protocol::error::BcsApiError;
use brokapi_bcs::error::map_command_err;
use brokapi_core::Error;

// No answer at all: the order may exist.
let lost = BcsApiError::HttpError { status: None, message: "timeout".into(), trace_id: None };
assert!(matches!(map_command_err(lost), Error::Unknown));
// The broker answered 503: it may have acted.
let busy = BcsApiError::HttpError { status: Some(503), message: "busy".into(), trace_id: None };
assert!(matches!(map_command_err(busy), Error::Unknown));
// The broker answered 403: it did nothing.
let denied = BcsApiError::HttpError { status: Some(403), message: "no".into(), trace_id: None };
match map_command_err(denied) {
    Error::Rejected { code, .. } => assert_eq!(code, "http_403"),
    other => panic!("{other:?}"),
}