npm install @sahelpay/sdk
# ou
yarn add @sahelpay/sdk

import { SahelPayMerchant } from '@sahelpay/sdk/merchant';

const sahelpay = new SahelPayMerchant({
  secretKey: process.env.SAHELPAY_SECRET_KEY!,
  webhookSecret: process.env.SAHELPAY_WEBHOOK_SECRET,
});

const payment = await sahelpay.createPayment({
  amount: 5000,
  orderId: 'order_123',
  customerPhone: '+22370123456',
  returnUrl: 'https://votre-site.com/checkout/return',
  customerName: 'Amadou Diallo', // optionnel
  description: 'Commande #123',  // optionnel
});

// Rediriger le client
redirect(payment.redirectUrl);

const status = await sahelpay.getPaymentStatus('txn_abc123');

console.log(status.status); // 'PENDING' | 'SUCCESS' | 'FAILED' | 'EXPIRED'
console.log(status.amount);
console.log(status.providerRef);

// Dans votre handler webhook
export async function POST(request: Request) {
  const rawBody = await request.text();
  const signature = request.headers.get('x-sahelpay-signature');

  const result = sahelpay.verifyWebhook(rawBody, signature);

  if (!result.valid) {
    return Response.json({ error: result.error }, { status: 401 });
  }

  const { event, data } = result.payload!;

  if (event === 'payment.success') {
    // Mettre à jour la commande
  }

  return Response.json({ received: true });
}

import type {
  PaymentResult,
  PaymentStatus,
  WebhookPayload,
  WebhookVerificationResult,
} from '@sahelpay/sdk/merchant';

import { SahelPayError } from '@sahelpay/sdk/merchant';

try {
  const payment = await sahelpay.createPayment({ ... });
} catch (error) {
  if (error instanceof SahelPayError) {
    console.log(error.code);    // 'INVALID_AMOUNT'
    console.log(error.message); // 'Montant minimum: 100 FCFA'
  }
}