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DataDolphin V2 - Dependencies Documentation
Overview
DataDolphin V2 es una aplicación Next.js 16 con backend Express.js para procesamiento de documentos e integración con APIs de IA.
📦 Node.js Dependencies
Runtime Dependencies ( package.json )
Framework & Core
* next 16.2.4 - React framework con App Router (Turbopack)
* react 19.2.4 - UI library
* react-dom 19.2.4 - React DOM rendering
API & Backend
* express ^5.2.1 - HTTP server para proxy APIs
* cors ^2.8.6 - CORS middleware para Express
* node-fetch ^3.3.2 - Fetch API para Node.js
* dotenv ^17.4.2 - Environment variables loader
UI & Icons
* react-icons ^5.6.0 - Icon library (HiOutline* icons)
* lucide-react ^1.8.0 - Additional icons
* tailwindcss-animate ^1.0.7 - Tailwind animations
Document Processing
* pdfjs-dist ^5.6.205 - PDF to image conversion
* jspdf ^4.2.1 - Client-side PDF generation
Development Dependencies
* typescript ^5.9.3 - TypeScript compiler
* @types/react ^19.2.14 - React type definitions
* @types/react-dom ^19.2.3 - React DOM type definitions
* @types/node ^20.19.39 - Node.js type definitions
* tailwindcss ^4.2.2 - CSS framework
* @tailwindcss/postcss ^4.2.2 - Tailwind PostCSS plugin
* eslint ^9.39.4 - Code linter
* eslint-config-next 16.2.4 - ESLint config for Next.js
Installation
# Using pnpm (recommended)
pnpm install
# Or using npm
npm install
# Or using yarn
yarn install
🐍 Python Dependencies
Backend Processing ( requirements.txt )
Core Utilities
* python-dotenv 1.0.0 - Environment variables
* python-decouple 3.8 - Environment configuration
Document Processing
* pdf2image 1.17.0 - Convert PDF pages to images
* pillow 10.1.0 - Image processing library
* PyPDF2 3.15.1 - PDF manipulation
* pillow-heif 0.13.0 - HEIF/HEIC image support
OCR (Optical Character Recognition)
* pytesseract 0.3.10 - Python wrapper for Tesseract (optional)
Data Processing
* numpy 2.3.1 - Numerical computing
* pandas 2.3.2 - Data analysis and manipulation
HTTP & Async
* requests 2.31.0 - HTTP client library
* aiofiles 23.2.0 - Async file operations
* python-multipart 0.0.6 - Multipart form data parser
Development & Testing
* ipython 8.32.0 - Interactive Python shell
* jupyter 1.0.0 - Jupyter notebook infrastructure
* ipykernel 6.29.5 - IPython kernel for Jupyter
Installation
# Create virtual environment (optional but recommended)
python -m venv venv
source venv/bin/activate # On Windows: venv\Scripts\activate
# Install dependencies
pip install -r requirements.txt
🔧 Environment Setup
Required Environment Variables
Create .env.local file in project root:
# OpenRouter API Configuration
OPENROUTER_API_KEY=your_openrouter_api_key_here
# API Base URL (if using external API)
NEXT_PUBLIC_API_URL=http://localhost:3000
# Optional: Document Processing API
PYTHON_API_URL=http://localhost:5000
🚀 Running the Application
Development
# Start Next.js dev server (port 3000)
pnpm dev
# Alternatively with npm
npm run dev
# Start Python backend (if needed, port 5000)
python server.py
Production Build
# Build Next.js app
pnpm build
# Start production server
pnpm start
📋 Tech Stack Summary
Layer
Technology
Version
Frontend
Next.js + React
16.2.4 + 19.2.4
Styling
Tailwind CSS
4.2.2
Backend API
Express.js
5.2.1
PDF Processing
pdfjs-dist + jsPDF
5.6.205 + 4.2.1
Type Safety
TypeScript
5.9.3
Python Processing
Python 3.x
-
AI Integration
OpenRouter API
Latest
Icons
react-icons + lucide-react
5.6.0 + 1.8.0
🛠️ Troubleshooting
Node.js Issues
# Clear node_modules and reinstall
rm -rf node_modules pnpm-lock.yaml
pnpm install
# Check Next.js version
next --version
Python Issues
# Verify Python version
python --version # Should be 3.8+
# Update pip
pip install --upgrade pip
# Install missing system dependencies (macOS)
brew install tesseract # For OCR
Environment Variables Not Loading
Check .env.local is in project root and restart dev server:
# Verify file exists
ls -la .env.local
# Restart dev server
pnpm dev
📚 References
* Next.js Documentation
* React Documentation
* Tailwind CSS
* Express.js
* TypeScript
* pnpm Package Manager
Last Updated: April 18, 2026
Project: DataDolphin V2
Version: 2.0.0
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