Automated Order Process Solutions for B2B & Retail

Below is a logic blueprint illustrating how incoming order JSON payloads are captured, cleaned, checked for duplication (idempotency), validated for inventory, and posted to the ERP database. This code structure prevents duplicate order entries even under unstable mobile network conditions during trade shows.

async function handleIncomingOrder(orderPayload) {
  // 1. Idempotency Check: Prevent duplicate order processing
  const existingOrder = await db.orders.find({ transactionId: orderPayload.id });
  if (existingOrder) {
    return { status: "success", message: "Duplicate block active. Order already logged.", orderId: existingOrder._id };
  }

  // 2. Data Sanitization & Address Verification
  const sanitizedOrder = sanitizeOrderData(orderPayload);
  const isValidAddress = await verifyAddressAPI(sanitizedOrder.shippingAddress);
  if (!isValidAddress) {
    await db.exceptions.create({ order: sanitizedOrder, reason: "Address validation failure" });
    return { status: "exception", queue: "address_review" };
  }

  // 3. Inventory Reservation (Database Lock)
  const stockAvailable = await checkStockAvailability(sanitizedOrder.items);
  if (!stockAvailable) {
    await db.exceptions.create({ order: sanitizedOrder, reason: "Inventory stockout during checkout" });
    return { status: "exception", queue: "inventory_hold" };
  }

  // 4. Submit to ERP Ledger
  const erpResponse = await erpClient.post("/orders", {
    customer_id: sanitizedOrder.customerId,
    line_items: sanitizedOrder.items.map(item => ({ sku: item.sku, qty: item.quantity, rate: item.price })),
    total: sanitizedOrder.orderTotal,
    payment_token: sanitizedOrder.paymentToken
  });

  // 5. Update Local DB & Broadcast Confirmation Webhook
  const savedOrder = await db.orders.insert({ ...sanitizedOrder, erpId: erpResponse.id, status: "processed" });
  await broadcastOrderWebhook(savedOrder);

  return { status: "success", orderId: savedOrder._id, erpId: erpResponse.id };
}