Enterprise Daraja 3.0
M-Pesa Systems Architecture.

import { DarajaClient } from "@nethub/daraja-sdk";

export async function POST(request: Request) {
  const daraja = new DarajaClient({
    consumerKey: process.env.DARAJA_CONSUMER_KEY!,
    consumerSecret: process.env.DARAJA_CONSUMER_SECRET!,
    passkey: process.env.DARAJA_PASSKEY!,
    shortCode: process.env.DARAJA_SHORTCODE!,
    environment: "production",
  });

  const { phone, amount, reference } = await request.json();

  // Trigger Sub-Second STK Push
  const response = await daraja.stkPush({
    phoneNumber: phone,
    amount,
    accountReference: reference,
    transactionDesc: "Enterprise Order Checkout",
    callbackUrl: "https://api.nethub.co.ke/v1/payments/callback",
  });

  return Response.json({
    status: "PENDING_CUSTOMER_PIN",
    checkoutRequestId: response.CheckoutRequestID,
    timestamp: new Date().toISOString(),
  });
}