Module retry 

Retry classification for the Derive adapter.

Splits DeriveHttpError and DeriveWsError into retryable, terminal, and fatal categories. The HTTP client routes errors through these helpers when driving [nautilus_network::retry::RetryManager]; the adapter-level crate::common::error::DeriveError reuses them for is_retryable / is_fatal.

Functions

http_retry_config

Builds a [RetryConfig] for Derive HTTP calls from the adapter’s config fields.

is_fatal_http_error

Returns true for HTTP errors that signal a fatal session state requiring operator intervention (auth header rejection, session key deregistered, subaccount withdrawn).

is_fatal_ws_error

Returns true for WebSocket errors that indicate a fatal session state.

is_write_outcome_definitive_http_status

Returns true for non-JSON-RPC HTTP statuses where a state-changing write failed before the matching engine could accept it.

should_retry_http_error

Returns true for HTTP errors that can safely be retried with backoff.

should_retry_ws_error

Returns true for WebSocket errors that can safely be retried.