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I will build a documented rest API with nodejs and typescript
Florian Lepage
About this gig
Build a clear API contract between your frontend and backend.
I'm Florian, founder of KYN Studio. I build Node.js/TypeScript REST APIs with Express for web apps and internal tools. Work directly with the engineer.
PACKAGES
Foundation: up to 3 endpoints and 1 data entity.
Connected: up to 8 endpoints, 2 entities and JWT validation for up to 2 roles.
Integration: up to 15 endpoints, 4 entities, the same role checks, ONE provider API OR inbound webhook, and one staging deployment.
All include source, comments, input validation, OpenAPI docs, request examples and agreed API tests. One existing PostgreSQL/MongoDB database; Basic reuses existing auth. No signup/password-reset flows.
Premium integration: up to 2 remote API operations OR 1 webhook event. You supply access/docs. Hosting/provider fees, frontend UI, billing, scraping/indexers, major migrations, audits and ongoing support are separate.
Message me on Fiverr before ordering with schema, endpoint list and expected behaviour. Gallery interfaces are past work, not included UI.
Get to know Florian Lepage
Florian Lepage
Full Stack Developer and KYN Studio Founder: Web Apps, APIs and AI
- FromFrance
- Member sinceMay 2020
- Avg. response time1 hour
- Last delivery1 year
Languages
English, French
I build web apps, internal tools and AI features, from the first idea through to production.
I run KYN Studio, where I work directly with founders and businesses to figure out what they need and build it. That covers the product, backend, infrastructure and keeping everything running after launch
I led engineering on an AI product at a London startup. Working across startups and a larger company has made me comfortable taking a loosely defined problem and owning the whole build.
I work mainly with TypeScript, React/Next.js, Node.js, Python and Go. I like being involved beyond the code
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FAQ
How are endpoints and data entities counted?
An endpoint is one HTTP method + path, for example GET /items and POST /items count as two. An entity is one agreed data model, such as a customer. Complex reports, joins or workflows are scoped separately. We agree schemas, business rules and acceptance criteria before ordering.
Does this include a database and authentication?
The API connects to ONE existing PostgreSQL or MongoDB database. Basic reuses your existing auth middleware. Standard/Premium add JWT validation against your existing issuer and checks for up to 2 roles. Signup, password reset, a new identity provider and complex permissions are excluded.
What does the Premium integration include?
Choose ONE documented provider API with up to 2 remote operations OR one inbound webhook event. Webhook scope includes agreed signature validation and duplicate-event handling where supported. You supply authorised access, documentation and a test environment. No scraping or custom indexer.
What code, tests and deployment do I receive?
All packages include source, relevant code comments, input validation, OpenAPI docs, example requests, setup notes and tests for the agreed API paths. Premium adds deployment to one existing staging environment. Production rollout, hosting fees, load testing and security audits are separate.
Is frontend UI, billing or long-term support included?
No. This is a backend API offer, not a complete app. Frontend screens, checkout/subscriptions, major migrations, regulated-data compliance work and ongoing monitoring/support need separate scope. You own/pay for hosting, databases and provider subscriptions. Message me on Fiverr first.
