I will build a secure REST or GraphQL backend with auth, Stripe and webhooks

I will build a secure REST or GraphQL backend with authentication, Stripe billing, and verified webhooks — production-ready, well-documented, and yours to own from day one.

What you get

You get a real, deployable backend, not a tutorial clone. Depending on the tier you choose, the delivery includes:

• A REST or GraphQL API (your choice) built on a modern, well-supported stack — Node.js (Express, Fastify, or NestJS), or Python (FastAPI/Django) on request — with a clean, layered architecture (routes/resolvers, services, data access) so it stays maintainable as it grows.
• Authentication and authorization: email/password with secure hashing (bcrypt/argon2), JWT access tokens plus refresh-token rotation, or session-based auth if you prefer. Role-based access control (e.g. admin/user) and route guards included. OAuth social login (Google/GitHub) available on higher tiers.
• Stripe billing integration: Checkout Sessions or Payment Intents, one-time payments and/or subscriptions, customer creation, and a billing portal link so your users can manage their own plans.
• Verified webhooks: Stripe webhook endpoints with signature verification, idempotency handling (so a replayed event never double-charges or double-provisions), and event handlers wired to your business logic — subscription activated, payment failed, refund issued, and so on.
• A real database schema: PostgreSQL by default (MySQL/MongoDB on request), with migrations, sensible indexes, and an ORM/query layer (Prisma, Drizzle, TypeORM, or SQLAlchemy).
• Input validation and error handling: schema validation on every endpoint (Zod, Joi, or Pydantic), consistent error responses, and meaningful HTTP status codes.
• Security hardening: secrets via environment variables, CORS configured for your domains, rate limiting on sensitive routes, security headers, and protection against the common OWASP issues (injection, broken auth, sensitive data exposure).
• Documentation: an OpenAPI/Swagger spec for REST or a typed schema with introspection for GraphQL, plus a README that explains setup, environment variables, running locally, and deploying.
• A test suite of integration tests covering auth flows and the payment/webhook paths (scope scales with tier).
• Clean, commented source code in a Git repository, handed to you in full. No lock-in, no obfuscation.

Plans

Feature	Basic	Standard	Premium
API style (REST or GraphQL)	1 style	1 style	1 style
Endpoints / resolvers	Up to ~6	Up to ~15	Up to ~30 (negotiable)
Authentication	Email + JWT	Email + JWT + refresh + RBAC	Full auth + OAuth social login
Stripe	One-time payments	Subscriptions + portal	Subscriptions, metered/usage, multiple plans
Verified webhooks	Core events	Extended events + idempotency	Full event coverage + retry logic
Database + migrations	Yes	Yes	Yes
Validation + error handling	Yes	Yes	Yes
Tests	Smoke tests	Integration tests	Comprehensive integration tests
API documentation	README	README + OpenAPI/schema	Full docs + Postman/GraphQL collection
Deployment help	Guidance	Deploy to one platform	Deploy + CI/CD pipeline
Revisions	1	2	3

If your needs sit between tiers or you have an existing codebase to extend, message me first and I'll tailor the scope before you order.

How it works

1. You message me with a short brief: what the product does, REST vs GraphQL (I'll advise if unsure), the entities/endpoints you need, and how payments should behave (one-time, subscription, or both).
2. We agree on scope — I send back a concrete endpoint/schema list, the auth model, the Stripe flow, and the tier that fits. No surprises later.
3. I build in milestones. Typically: schema and migrations first, then auth, then core endpoints, then Stripe and webhooks last. You get visibility as each piece lands.
4. You review on a running instance or via the test suite and docs. I incorporate your revisions within the tier's allowance.
5. I hand off the full Git repository, environment variable template, documentation, and a short walkthrough of how everything fits together. Optional deployment help per tier.

Why choose this

Payment and authentication code is exactly where shortcuts come back to bite you — a webhook without signature verification, a JWT without expiry, a missing idempotency key. I build these paths the careful way the first time, because a double-charged customer or a leaked token costs far more than the build. You get code structured for the long term, with migrations instead of hand-edited tables, validation on every input, and documentation a future developer (or future you) can actually follow. Everything is handed over in full — there is no proprietary layer you have to keep paying me to touch.

Who it's for / use cases

• SaaS founders who need a billable backend: signup, login, subscriptions, and a customer portal, ready to connect to a frontend or mobile app.
• Agencies and other developers who want the backend handled cleanly while they focus on UI or product.
• Marketplaces and membership sites needing paid tiers, gated content, or per-seat billing.
• MVP builders validating an idea who want a real foundation rather than throwaable scaffolding.
• Existing projects that need Stripe billing or proper auth bolted onto an API that's already running.

FAQ

Q: REST or GraphQL — which should I pick? REST is simpler and a great default for most CRUD-style apps and public APIs. GraphQL shines when clients need flexible, nested queries or you're serving several different frontends. Tell me your use case and I'll give an honest recommendation; the price tier is the same either way.

Q: Do I own the code? Yes, completely. You receive the entire Git repository with full, commented source. There's no hidden runtime, no license fee, and nothing you have to rent from me afterward.

Q: Will real money move during the build? No. I build and test against Stripe's test mode with test keys and the Stripe CLI for webhook simulation. You switch to live keys when you're ready to go live, and I'll document exactly how.

Q: Can you deploy it for me? Yes — deployment guidance is included on every tier, hands-on deployment to one platform (Railway, Render, Fly.io, AWS, etc.) on Standard, and a full CI/CD pipeline on Premium. You keep ownership of all accounts and credentials.

Q: Can you extend my existing backend instead of starting fresh? Often, yes. Send me the repository and I'll review it first. If it's healthy I'll add the auth, billing, or webhook layer you need; if there are blocking issues I'll tell you honestly before we start.

Q: What do you need from me to begin? A clear brief of the features and data model, your Stripe account (test keys to start), and a target deployment platform if you want me to deploy. I'll send a short checklist after you order so nothing stalls.

Q: How do you handle security and secrets? Secrets live in environment variables, never in the repo. Webhooks are signature-verified and idempotent, passwords are hashed with a modern algorithm, tokens expire and rotate, and sensitive routes are rate-limited. I'll walk you through the security choices at handoff.

Q: What happens after delivery if something breaks? Each tier includes revisions to fix anything that doesn't match the agreed scope. Beyond that, I'm happy to discuss ongoing maintenance or a support arrangement separately — just message me.