🚀 High-Performance Crypto Rankings Dashboard

A production-ready social analytics API built with Go + Inngest + Redis Cloud + React. Real-time cryptocurrency sentiment analysis with enterprise-grade architecture.

🎯 Live Demo

🌐 Frontend Dashboard: View Live Demo

🔧 API Health Check: Backend Status

📊 Real-time Metrics: 11 cryptocurrency social sentiment indicators

⚠️ Note: Backend uses Render's free tier - first request may take 30-60 seconds to wake up from sleep after 15 minutes of inactivity.

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🏗️ Architecture Overview

graph TD
    A[LunarCrush API] --> B[Inngest Background Jobs]
    B --> C[Redis Cloud Cache]
    C --> D[React Dashboard]

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🔥 Key Features

• ⚡ High Performance: Go backend with Redis Cloud caching (3-5 second response times)
• 🤖 AI-Ready: LunarCrush API integration for seamless AI assistant access
• 🔄 Background Processing: Inngest workflows with error recovery and retries
• 📊 Real-time Analytics: 11 cryptocurrency social sentiment metrics
• 🛡️ Production Ready: Comprehensive error handling and graceful degradation

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🛠️ Technology Stack

Backend Architecture

• 🏎️ Go 1.24 - High-performance API server with Gin framework
• 🔴 Redis Cloud - Cloud-hosted Redis with 15-minute TTL caching
• ⚙️ Inngest - Background job processing with error recovery
• 🔗 LunarCrush API - For latest cryptocurrency social analytics
• ☁️ Render - Backend deployment platform (free tier with cold starts)

Frontend Stack

• ⚛️ Next.js 14 - React framework with TypeScript
• 🎨 Tailwind CSS - Utility-first styling with custom color palette
• 🧩 Radix UI - Accessible component primitives
• 📡 TanStack Query - Server state management with caching
• 🎯 TypeScript - Full type safety across the application
• ☁️ Vercel - Frontend deployment platform

Cloud Services

• Redis Cloud - Managed Redis hosting (30MB free tier)
• Render - Go backend hosting (free tier with sleep mode)
• Vercel - React frontend hosting (permanent free tier)
• Inngest - Background job orchestration (free tier)

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⚡ Quick Start

Prerequisites

• Go 1.24+ - Download Go
• Node.js 18+ - Download Node.js
• Redis (local) or Redis Cloud account

🚀 1-Minute Setup

# Clone the repository
git clone https://github.com/danilobatson/crypto-rankings.git
cd crypto-rankings

# Setup environment variables
cp .env.example .env
# Edit .env with your API keys (see setup guide below)

# Terminal 1: Start Go Backend
cd server
go mod tidy
go run main.go

# Terminal 2: Start React Frontend
cd frontend
npm install
npm run dev

🌐 Access Dashboard: http://localhost:3001 🔧 API Health: http://localhost:8080/health

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🔧 Environment Setup

Required API Keys

LunarCrush API Setup

1. Sign up: LunarCrush Developers
2. Subscribe: Choose any plan to generate API keys
3. Generate Key: Visit API Authentication

Redis Cloud Setup

1. Sign up: Redis Cloud
2. Create Database: Choose free 30MB tier
3. Get Connection: Copy host, port, and password

Inngest Setup

1. Sign up: Inngest Cloud
2. Create App: Get your Event Key and Signing Key
3. Development: Use Inngest Dev Server for local development

Environment Configuration

# .env file
# Redis Cloud
REDIS_URL=redis://default:password@your-redis-host:port

# LunarCrush API
LUNARCRUSH_API_KEY=lc_your_api_key_here

# Inngest Configuration
INNGEST_EVENT_KEY=your_inngest_event_key
INNGEST_SIGNING_KEY=your_inngest_signing_key
INNGEST_DEV_URL=http://localhost:8080/api/inngest

# Application
PORT=8080
NODE_ENV=development

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📊 API Documentation

Core Endpoints

Endpoint	Method	Description	Response Time
/health	GET	System health check	~50ms
/api/crypto/data	GET	Complete analytics data	~3-5s
/dev/trigger	POST	Manual data refresh	~5-10s
/api/crypto/info	GET	Available metrics info	~50ms

Sample API Response

{
  "timestamp": "2025-06-26T15:30:00Z",
  "total_metrics": 11,
  "all_metrics": {
    "market_cap": {
      "name": "Market Cap",
      "success": true,
      "data_count": 10,
      "all_data": [
        {
          "name": "Bitcoin",
          "symbol": "BTC",
          "value": "$1,981,409,972,282"
        }
      ],
      "fetch_time_ms": 3247
    }
  },
  "fetch_stats": {
    "successful_fetches": 10,
    "failed_fetches": 1,
    "total_duration_ms": 12453
  }
}

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🏗️ Project Structure

crypto-rankings/
├── server/                      # Go Backend
│   ├── main.go                 # API server with 11 metrics
│   ├── go.mod                  # Go dependencies
│   ├── go.sum                  # Dependency checksums
│   └── .env                    # Environment variables
├── frontend/                    # React Frontend
│   ├── src/
│   │   ├── app/                # Next.js app directory
│   │   │   ├── page.tsx        # Main dashboard component
│   │   │   ├── globals.css     # Soft, eye-friendly styling
│   │   │   └── layout.tsx      # App layout
│   │   └── components/         # Reusable UI components
│   ├── package.json            # Frontend dependencies
│   └── tailwind.config.js      # Styling configuration
├── .env.example               # Environment template
└── README.md                  # This file

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🚀 Deployment Guide

Production Environment

Backend Deployment (Render)

The backend is deployed on Render's free tier:

• URL: https://crypto-rankings.onrender.com
• Cold Start: ~30-60 seconds after 15 minutes of inactivity
• Performance: Fast once warmed up (3-5 second API responses)

Deployment Steps:

1. Connect GitHub repository to Render
2. Configure build settings:
   • Root Directory: server
   • Build Command: go build -o main ./main.go
   • Start Command: ./main
3. Add environment variables in Render dashboard
4. Deploy automatically on git push

Frontend Deployment (Vercel)

The frontend is deployed on Vercel:

• URL: https://crypto-rankings.vercel.app/
• Performance: Fast global CDN delivery
• Auto-deploy: On git push to main branch

Deployment Steps:

1. Connect GitHub repository to Vercel

2. Configure build settings:

   • Framework: Next.js
   • Root Directory: frontend
   • Build Command: npm run build

3. Add environment variables:

   NEXT_PUBLIC_API_URL=https://crypto-rankings.onrender.com

4. Deploy automatically on git push

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📈 Performance Metrics

Backend Performance

• API Response Time: 3-5 seconds (with Redis cache hits: <100ms)
• Memory Usage: ~50MB base + 10MB per 1000 requests
• Throughput: 1000+ requests/second on modest hardware
• Cold Start: 30-60 seconds (Render free tier limitation)

Cache Strategy

• Redis TTL: 15 minutes for crypto data
• Background Jobs: Inngest updates data every 5 minutes
• Browser Cache: 5 minutes for API responses

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🧪 Testing & Quality Assurance

API Testing

# Health check
curl https://crypto-rankings.onrender.com/health

# Data endpoint (may take 30-60s on first request if sleeping)
curl https://crypto-rankings.onrender.com/api/crypto/data

# Manual trigger
curl -X POST https://crypto-rankings.onrender.com/dev/trigger

Local Development Testing

# Backend testing
cd server
go run main.go

# Frontend testing
cd frontend
npm run dev

# Test API endpoints
curl http://localhost:8080/health
curl http://localhost:8080/api/crypto/data

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🔧 Development Workflow

Local Development

# Start Redis (if running locally)
redis-server

# Backend development (with hot reload using Air)
cd server && air
# or server/main.go

# Frontend development
cd frontend && npm run dev

Code Quality

• Go: gofmt, go vet, proper error handling
• TypeScript: ESLint, Prettier, strict mode
• Commit Hooks: Pre-commit formatting and linting

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🌐 Deployment URLs

Live Application

• Frontend: https://crypto-rankings.vercel.app/
• Backend API: https://crypto-rankings.onrender.com
• Health Check: https://crypto-rankings.onrender.com/health

GitHub Repository

• Source Code: https://github.com/danilobatson/crypto-rankings

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📚 Learning Resources

Technologies Used

• Go Documentation - Backend language
• Redis Documentation - Caching layer
• Inngest Docs - Background job processing
• Next.js Guide - React framework
• Tailwind CSS - Styling framework

Cloud Platforms

• Render Documentation - Backend deployment
• Vercel Documentation - Frontend deployment
• Redis Cloud - Managed Redis

API References

• LunarCrush API - Social data source

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⚠️ Production Notes

Render Free Tier Limitations

• Sleep Mode: Service sleeps after 15 minutes of inactivity
• Wake Time: 30-60 seconds to respond to first request
• Bandwidth: 100GB/month
• Build Time: 500 build minutes/month

For Production Use

Consider upgrading to:

• Render Starter Plan: $7/month for always-on service
• Alternative Platforms: Google Cloud Run, AWS Lambda, Fly.io

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🤝 Contributing

Development Setup

1. Fork the repository
2. Create a feature branch: git checkout -b feature/amazing-feature
3. Make your changes and test thoroughly
4. Commit with conventional commits: feat: add real-time updates
5. Push and create a Pull Request

Code Standards

• Go: Follow effective Go guidelines
• TypeScript: Strict mode, explicit return types
• Commits: Conventional commits format
• Documentation: Update README for new features

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🙏 Acknowledgments

• LunarCrush - Real-time crypto social sentiment data
• Inngest - Background job processing platform
• Vercel - Frontend deployment and hosting
• Render - Backend deployment platform
• Redis Cloud - Managed Redis hosting

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📄 License

MIT License - see LICENSE file for details.

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🚀 Built with ❤️ for the modern web

⭐ Star this repo • 🐛 Report Bug • ✨ Request Feature

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Demonstrates full-stack development, cloud architecture, real-time data processing, and modern UI/UX design.