REST API development and integrations
Secure, documented REST APIs for web and mobile apps, plus third-party integrations and webhooks.
How I work on this
I design resource-oriented REST APIs with authentication, validation and consistent error handling, and connect them to the services a product depends on: payments, SMS, push notifications, market data and identity verification. Webhooks are handled idempotently so retries never double-process.
Technologies
- REST
- Laravel
- Node.js
- FastAPI
- Webhooks
- OpenAPI
What is included
- API design, versioning and OpenAPI documentation
- Authentication, OTP verification and RBAC
- Third-party integrations: Stripe, PayPal, Twilio, Firebase, KYC
- Idempotent webhook handling
- Postman collections and automated API tests
Related projects
- Federal Forecasting AppREST APIs supporting government contracting forecasts, document discovery, downloads and mobile/web data access.
- Spot It NowWildlife sighting app backend with location-based feeds, OTP authentication, media uploads and push notifications.
- FlowLedgerAsync payment reconciliation and double-entry ledger platform with idempotent webhook processing.
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