Building a Modern Full-Stack with React, FastAPI and Databricks Lakebase
Modern application development is reaching a breaking point. Teams want to ship products fast, experiment often, integrate AI everywhere, but the traditional full-stack model forces them to stitch together frontend, backend, databases, pipelines, and ML infrastructure across multiple clouds and tools.
Databricks is collapsing that complexity.
With React, FastAPI, Databricks Apps, and Lakebase, a Postgres-compatible OLTP database embedded directly into the lakehouse, engineering teams can now build, deploy, and govern full-stack, AI-powered applications on a single unified platform.
A New Application Stack: React + FastAPI + Lakebase
Databricks introduces a fundamentally different way to build full-stack systems:
- React for modern, interactive UIs
- FastAPI for high-performance backend services
- Lakebase for low-latency OLTP, fully governed under Unity Catalog
- Databricks Apps for serverless app deployment without managing infrastructure
This combination replaces the fragmented cloud-native stack (Kubernetes + RDS + feature stores + pipelines) with a single, AI-ready platform.
Why This Architecture Wins
Unified data, no pipelines
Your API and UI work directly against Lakebase, which syncs automatically with the lakehouse. OLTP, OLAP, and AI use the same governed data.
Familiar developer experience
Developers use standard tooling:
- React + TypeScript
- Python + FastAPI
- Postgres libraries (psycopg2, asyncpg)
No proprietary database, no custom drivers.
AI-native from day one. The backend can call:
- MLflow models
- Vector search
- Feature Store
- RAG pipelines
All inside the same workspace.
Governance built in
- Unity Catalog governs:
- Database tables
- API access
- ML assets
- Application permissions
Security becomes a default, not a project.
Serverless apps
Databricks Apps removes the need for Kubernetes, container orchestrators, or separate hosting.
Your app is deployed as a first-class workspace asset.
The Full-Stack Platform for the AI Era
Combining React, FastAPI, Lakebase, and Databricks Apps creates a stack where:
- Data doesn’t move
- Governance is consistent
- AI is native
- Infrastructure disappears
- Developers stay in tools they already know
This is full-stack development reimagined for a world where applications must be data-intensive, AI-powered, and production-ready from day one, and at Qubika, we build these architectures end-to-end to help companies adopt this modern, unified way of delivering applications.
