Module errors 

Hashing-category native errors.

This module defines category-native error types for hashing and verification, used directly in handlers, services, and middleware for hashing, password verification, and secret management flows.

Overview

• HashingError: category-native error enum for hashing/verification
• HashingOperation: operation discriminator used by HashingError

Examples

Construct a hashing error with algorithm context:

use axum_gate::hashing::{HashingError, HashingOperation};

let err = HashingError::with_algorithm(
    HashingOperation::Hash,
    "argon2 hashing failed",
    "argon2id",
);

// Utility methods from the unified trait
use axum_gate::errors::UserFriendlyError;
assert!(err.user_message().contains("security processing system"));
assert!(err.developer_message().contains("Hash operation hash failed"));
assert!(err.support_code().starts_with("HASH-HASH"));

Construct a verification failure where retry is possible:

use axum_gate::hashing::{HashingError, HashingOperation};
use axum_gate::errors::UserFriendlyError;

let err = HashingError::with_context(
    HashingOperation::Verify,
    "password verification failed",
    Some("argon2id".into()),
    Some("$argon2id$v=19$...".into()),
);
assert!(err.is_retryable());

Enums

HashingError

Hashing-category native errors (hashing and verification).

HashingOperation

Hashing operation identifiers used for structured error reporting.