Stripe Payment API

OVERVIEW

Built a server-side payment processing API using Express 5 on Node.js 22 with ES Modules. Integrates Stripe SDK for PaymentIntent creation, customer management, and 3D Secure support. The Express app is wrapped in Firebase Cloud Functions for serverless deployment, exposing a /create-payment-intent endpoint. Focused on backend architecture — no frontend code, pure API design.

TECH STACK