Lacspace Devs
← All packages

@lacspace/order

v1.1.0Commerce & Ledger0 deps

Headless order-lifecycle engine — an immutable order model with a state machine, order-number generation, partial fulfillment tracking, refund tracking, on-demand totals recompute and a typed audit-trail timeline. Integer minor units, zero-dependency, isomorphic.

npm i @lacspace/order
View on npm ↗GitHub ↗

Usage

order.ts
import { createOrder, transition, orderNumber } from "@lacspace/order";

let order = createOrder({
  number: orderNumber(1042),          // "ORD-20260905-1042"
  currency: "NPR",
  customer: { id: "cus_1", name: "Sita" },
  lines: [{ id: "l1", sku: "NP-1", name: "Dhaka Topi", unitPrice: 120000, qty: 2, taxRate: 0.13 }],
  shipping: 10000,
});

order = transition(order, "placed");
order = transition(order, "paid", { note: "eSewa ref 9x..." });
// order.history is a timestamped audit trail; line prices are snapshotted; totals in integer paisa

Exports 15

createOrdertransitionaddLineremoveLineupdateQtycanTransitionisTerminalcanCancelcanRefundcanShipcanFulfillorderNumberrandomOrderIdORDER_TRANSITIONSOrderError

Keywords

orderorder-managementecommercestate-machinecheckoutfulfillment

More in Commerce & Ledger

@lacspace/cart

Headless, framework-agnostic shopping-cart engine — pure, immutable & serializable. Line-item options/add-ons, line & cart discounts (%/fixed), injectable tax hooks (inclusive/exclusive), a full totals breakdown, plus serialize/hydrate/merge — all in integer minor units. Isomorphic (Node, edge, browser).

@lacspace/inventory

Headless stock engine that prevents overselling — reserve/commit/restock over plain { onHand, reserved } state, plus multi-location transfers, reorder points, lot/expiry FIFO-FEFO allocation, and an append-only movements ledger with low-stock & expiring-soon reports. Immutable, bring-your-own-store, isomorphic.

@lacspace/commission

Commission & payout engine — flat/percent/marginal-tier/progressive-slab rules with caps & floors, composite and per-category rates, tax-on-commission (inclusive/exclusive), explicit rounding modes, and a marketplace split (platform + seller + affiliate) whose lines conserve the gross exactly. Integer minor units, zero floats. Isomorphic.

@lacspace/settlement

Settlement, netting & reconciliation for marketplace payouts — batch-settle transactions per payee, deduct commission/fees/tax, hold rolling reserves, schedule payout dates (skipping weekends & holidays) and build statements. Integer minor units, pure functions. Isomorphic.

@lacspace/coupon

Discount & coupon engine — percent, fixed, free-shipping, BOGO and tiered codes, with validity windows, total/per-user limits, first-order and product/category scope, a currency guard, safe coupon stacking and CSPRNG code generation. Integer minor units, no float drift. Zero-dependency, isomorphic.

@lacspace/tax

VAT & sales-tax done right — exact integer minor-unit arithmetic (no float cents bugs), add/extract tax (inclusive & exclusive), multiple & compound taxes with a labelled breakdown, category rate tables, reverse charge, and line-level vs invoice-level rounding. Isomorphic.

← Browse all 197 packagesRead the handbook