Whop-Shopify Checkout Integration

I want to connect my Shopify store to Whop through a fully custom solution rather than a plug-and-play app. The goal is to let shoppers complete their purchase in Shopify while the system quietly passes the order to Whop, triggers licence delivery, and routes payouts exactly the way Whop expects.

Key functions I need:
• Seamless checkout hand-off between Shopify and Whop.
• Automated payout management that mirrors Whop’s payout schedule and fees.

I already have active accounts on both platforms; what I lack is the middleware—whether that ends up being a private Shopify app, webhook workflow, or a small Node/Python microservice is up to you—as long as it is secure, well-documented, and can be hosted on my preferred stack (AWS or Vercel).

Deliverables I expect:
1. Source code with clear comments.
2. Setup instructions I can follow in under an hour.
3. A brief video or live walk-through proving the checkout-to-payout flow works end-to-end.
4. One round of post-launch tweaks to iron out edge-cases.

If you have built custom payment or payout bridges before—especially with Shopify’s Admin API, Webhooks, or Whop’s REST endpoints—please include a quick note on that experience along with a link or two to similar projects.