DeriveIdempotencyKeyInput — @gj-kit/toss-payments

A public interface from @gj-kit/toss-payments/server. The signature below is taken directly from the 0.6.1 release declaration.

Verified import example

import { DeriveIdempotencyKeyInput } from '@gj-kit/toss-payments/server';

Signature, parameters, and return type

/** Input for {@link deriveIdempotencyKey}. */
interface DeriveIdempotencyKeyInput {
    /** Logical operation name, e.g. `'billing_initial_charge'` or `'subscription_renewal'`. */
    readonly operation: string;
    /**
     * Identity of the logical business event — ids and period markers that make the key
     * deterministic (subscription id, period start epoch, quote id, …). Never put raw
     * billing/auth keys, card or account numbers here: the key travels in request headers and
     * audit logs.
     */
    readonly parts: readonly string[];
    /**
     * Optional attempt discriminator. Omit it for the first submission; supply a fresh value
     * (e.g. a UUID) for a *new* attempt after a definitive 4xx, because Toss replays the original
     * 4xx for the same key for 15 days. Keep it **absent** when you intend a replay
     * (transport failure, `IDEMPOTENT_REQUEST_PROCESSING`).
     */
    readonly attempt?: string | undefined;
}

This declaration is the source of truth for parameters, optionality, generics, return values, and public union/type contracts. Check the package golden path and this subpath’s import conditions for required environment, permission, and error boundaries before calling it.

Release context

• Package: @gj-kit/toss-payments
• Version: 0.6.1
• Public entry: ./server
• Source: GitHub