Examples

Learn how to integrate NexaDB into your applications with these complete end-to-end examples.

⭐ FLAGSHIP EXAMPLE - NEW IN v3.0.0

NotesApp
Full-Stack Note-Taking

Production-ready note-taking application showcasing NexaDB 3.0 with beautiful modern UI, AI-powered semantic search, and 10x faster performance with MessagePack binary protocol.

✓
10x Faster
MessagePack binary protocol
✓
AI Search
Semantic vector search
✓
Modern UI
React + TypeScript + Tailwind
✓
Full CRUD
Complete backend + frontend

Quick Start

# 1. Start NexaDB
nexadb start &
# 2. Install deps & start API (from NotesApp)
pip3 install -r requirements.txt && python3 main.py &
# 3. Start the UI (from NotesApp/ui)
npm install && npm run dev
🌐 localhost:5174 Web UI📚 localhost:8000/docs API Docs
View on GitHub →Documentation
NotesApp Screenshot
FastAPI + React + NexaDB
FULL-STACK APP

PollingApp
Real-Time Voting Platform

Modern polling application with NestJS backend and React frontend. Features categories, search, real-time vote tracking, and a clean white theme UI.

✓
NestJS Backend
TypeScript + Decorators
✓
Categories
Filter & organize polls
✓
Search
Find polls instantly
✓
Vote Tracking
Real-time results

Quick Start

# 1. Start NexaDB
nexadb start &
# 2. Install deps & start API (from PollingApp)
npm install && npm run start:dev &
# 3. Start the UI (from PollingApp/ui)
npm install && npm run dev
🌐 localhost:5175 Web UI📚 localhost:3000 API
View on GitHub →Documentation
PollingApp Screenshot
NestJS + React + NexaDB
AI-POWERED RAG

RAG Knowledge Base
AI Document Q&A

Retrieval-Augmented Generation system for intelligent document Q&A. Upload documents, ask questions, and get AI-powered answers with source citations using NexaDB vector search.

✓
Vector Search
HNSW semantic retrieval
✓
PDF Support
Upload PDF, MD, TXT
✓
Source Citations
Transparent AI answers
✓
OpenAI Integration
GPT-4o + Embeddings

Quick Start

# 1. Start NexaDB
nexadb start &
# 2. Configure & start API (from RAGKnowledgeBase)
pip3 install -r requirements.txt && python3 main.py &
# 3. Start the UI (from RAGKnowledgeBase/ui)
npm install && npm run dev
🌐 localhost:5176 Web UI📚 localhost:8000/docs API Docs
View on GitHub →Documentation
RAG Knowledge Base Screenshot
FastAPI + React + NexaDB + OpenAI

Framework Examples

Integration examples for popular frameworks

Node.js + Express

Build a complete REST API with Express.js and NexaDB. Includes CRUD operations, authentication, and error handling.

View Example →

Python + FastAPI

Create a high-performance API with FastAPI and NexaDB. Async operations, type validation, and auto-docs.

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NestJS Application

Enterprise-grade application with NestJS and NexaDB. Dependency injection, decorators, and modules.

View Example →

Next.js Full Stack

Full-stack application with Next.js 14, Server Actions, and NexaDB.

Coming Soon

AI Vector Search

Build a semantic search engine using embeddings and NexaDB vector search. Movie recommendation demo included.

View Example →

Real-time Chat

Real-time chat application with WebSockets and NexaDB for message persistence.

Coming Soon