Paystack with Medusa Commerce

npm install medusa-payment-paystack

// medusa-config.js
const plugins = [
  // ... other plugins
  {
    resolve: 'medusa-payment-paystack',
    options: {
      secret_key: process.env.PAYSTACK_SECRET_KEY,
    },
  },
];

module.exports = {
  projectConfig: {
    // ... your existing config
  },
  plugins,
};

Set the environment variable:

PAYSTACK_SECRET_KEY=sk_live_your_key_here

Restart your Medusa server. Then go to the Medusa admin dashboard → Settings → Regions → select your Africa region → Payment Providers → enable Paystack.

// In your Medusa storefront (Next.js example)
async function initializePaystackPayment(cartId) {
  // Create payment session
  await medusaClient.carts.createPaymentSessions(cartId);

  // Select Paystack as provider
  var cartData = await medusaClient.carts.setPaymentSession(cartId, {
    provider_id: 'paystack',
  });

  // Authorize payment — plugin calls Paystack initialize and returns the URL
  var { cart } = await medusaClient.carts.authorizePayment(cartId);

  // The plugin stores the Paystack authorization_url in payment session data
  var authUrl = cart.payment_session.data.authorization_url;
  window.location.href = authUrl; // redirect to Paystack checkout
}

// On callback page (after Paystack redirects back)
async function completePaystackPayment(cartId, reference) {
  // Verify with Paystack and complete the Medusa order
  var { type, data } = await medusaClient.carts.complete(cartId);
  if (type === 'order') {
    router.push('/order/' + data.id + '/confirmed');
  }
}

See the Paystack plugins guide for other e-commerce platform integrations.

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