Stripe Migration Tool

import com.stripe.Stripe;
import com.stripe.StripeClient;
import com.waffo.stripe.WaffoStripe;                             // ← new
import com.waffo.stripe.config.WaffoConfig;                      // ← new

// ← new: your Waffo credentials. When the env var names match waffo-java's
//        convention, a single fromEnv() call is enough
com.waffo.types.config.WaffoConfig waffoJavaConfig =
        com.waffo.types.config.WaffoConfig.fromEnv();

// ← new: routing configuration
WaffoConfig routing = WaffoConfig.builder()
        .waffoConfig(waffoJavaConfig)
        .notifyUrl("https://your-app.example/webhooks/waffo")
        .build();

Stripe.apiKey = System.getenv("STRIPE_SECRET_KEY");              // ← changed: key moves to the global setting
StripeClient client = WaffoStripe.client(routing);                // ← changed: swap the constructor

import com.stripe.StripeClient;

StripeClient client = new StripeClient(System.getenv("STRIPE_SECRET_KEY"));

SessionCreateParams params = SessionCreateParams.builder()
        .setMode(SessionCreateParams.Mode.SUBSCRIPTION)
        .setSuccessUrl("https://your-app.example/subscription/success")
        .setCancelUrl("https://your-app.example/subscription/cancel")
        .addLineItem(SessionCreateParams.LineItem.builder()
                .setPrice("price_123")
                .setQuantity(1L)
                .build())
        .putMetadata("source", "waffo")                          // ← new: this line routes it to Waffo
        .build();

RequestOptions options = RequestOptions.builder()                // ← new: idempotency key, persisted first
        .setIdempotencyKey(persistedSubscriptionRequest)
        .build();

Session session = client.checkout().sessions()
        .create(params, options);                                // ← changed: pass options too
saveSubscriptionMapping(orderId, session.getSubscription());     // ← new: map wsub_ to the business order
redirect(session.getUrl());                                      // unchanged: still read the URL from getUrl()

SessionCreateParams params = SessionCreateParams.builder()
        .setMode(SessionCreateParams.Mode.SUBSCRIPTION)
        .setSuccessUrl("https://your-app.example/subscription/success")
        .setCancelUrl("https://your-app.example/subscription/cancel")
        .addLineItem(SessionCreateParams.LineItem.builder()
                .setPrice("price_123")
                .setQuantity(1L)
                .build())
        .build();

Session session = client.checkout().sessions().create(params);
redirect(session.getUrl());

// The Stripe endpoint stays untouched; add this HTTP route for Waffo
@PostMapping(value = "/webhooks/waffo", produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<String> onWaffo(@RequestBody String body,
                                      @RequestHeader("X-SIGNATURE") String signature) throws StripeException {

    WaffoStripeWebhookResult result = webhooks.handle(body, signature);   // verify, translate, and generate the acknowledgment

    if (result.getPaymentNotification() != null) {
        subscriptionPaymentHandler.handle(                                // subscription billing, recorded separately
                result.getPaymentNotification().getResult());
    }

    Event event = result.getEvent();
    if (event != null) {
        existingStripeWebhookDispatcher.dispatch(event);                  // unchanged: reuse your dispatch logic
    }

    return ResponseEntity.ok()                                            // map the SDK result to a Spring HTTP response
            .contentType(MediaType.APPLICATION_JSON)
            .body(result.getResponseBody());
}

import com.stripe.net.Webhook;

// Stripe endpoint only
@PostMapping("/webhooks/stripe")
public ResponseEntity<String> onStripe(@RequestBody String body,
                                       @RequestHeader("Stripe-Signature") String signature) {
    try {
        Event event = Webhook.constructEvent(body, signature, endpointSecret);
        existingStripeWebhookDispatcher.dispatch(event);
        return ResponseEntity.ok("ok");    // Stripe only reads the status code
    } catch (SignatureVerificationException e) {
        return ResponseEntity.badRequest().build();
    }
}