RN + API
Production mobile application using React Native, FastAPI, NeonDB, and Render with scalability planning for thousands of users.
- Client
- Personal
- Industry
- Mobile & Full Stack
- Timeline
- 5 months
- Technologies
- React Native, FastAPI, Python, Neon PostgreSQL, Render, JWT
Project Overview
A mobile application built with React Native frontend, FastAPI backend, NeonDB database, and Render hosting.
Initially designed for a few users but later discussed scaling strategies for handling thousands of users.
Your Role
- React Native mobile UI and navigation
- FastAPI backend API design and implementation
- Neon PostgreSQL schema and data access
- JWT authentication and CORS configuration
- Render deployment for frontend and backend services
- Scalability planning and performance discussions
Tech Stack Used
- Mobile: React Native, React Navigation
- Backend: FastAPI, Python, JWT
- Database & Hosting: Neon PostgreSQL, Render
Key Features
- Cross-platform mobile app with React Native
- RESTful FastAPI backend with JWT auth
- Neon PostgreSQL for serverless database hosting
- Production deployment on Render
- Environment-based API configuration
- Scalability roadmap for high user volumes
Code Structure & Architecture
mobile/
src/
screens/
navigation/
api/
backend/
app/
routes/
models/
services/
tests/- Full-stack mobile product from UI to deployed API
- Serverless Postgres with Neon for cost-efficient scaling
- Monorepo-friendly Render deployment setup
Challenges & Solutions
Challenge: Designing for a small initial user base with future scale in mind.
Solution: Separated stateless API layers and documented horizontal scaling paths on Render.
Challenge: Managing CORS and auth across mobile clients and production API.
Solution: Configured JWT tokens with environment-specific CORS origins and secure secret management.
Takeaways
Highlights modern full-stack delivery — mobile, API, database, and hosting with real scalability thinking.