Mobile quickstart

// Your server: an endpoint your app calls when the customer taps Pay.
app.post('/checkout-session', async (req, res) => {
  const session = await watenga.checkoutSessions.create({
    amount: '25.00',            // decided by your server, never by the app
    currency: 'USD',
    reference: req.body.orderId,
  });
  res.json({ client_secret: session.client_secret, amount: 25, currency: 'USD', reference: req.body.orderId });
});

import SwiftUI
import Watenga

struct PayButton: View {
    @State private var config: WatengaSheetConfig?
    @State private var show = false
    private let watenga = WatengaCheckout(publicKey: "pk_test_your_key")

    var body: some View {
        Button("Pay") {
            Task {
                let session = try await MyAPI.createCheckoutSession(orderId: "ORD-1001") // your server
                config = WatengaSheetConfig(amount: 25, currency: "USD", reference: "ORD-1001", clientSecret: session.clientSecret)
                show = true
            }
        }
        .sheet(isPresented: $show) {
            if let config {
                watenga.sheet(config: config) { result in
                    show = false
                    if result.isCompleted { print("Paid", result.transactionId ?? "") }
                }
            }
        }
    }
}