Developer Overview

Welcome to CapSign's developer ecosystem! Build the next generation of capital markets applications using the CMX Protocol on the CMX Network.

🚀 Quick Start for Developers

5-Minute Setup

# 1. Install CapSign CLI
npm install -g @capsign/cli

# 2. Create new project
capsign create my-capital-markets-app

# 3. Deploy to CMX Network testnet
cd my-capital-markets-app
capsign deploy --network testnet

# 4. Start building!

What You Can Build

📊 Trading Platforms - Decentralized exchanges for capital markets
💼 Asset Management - Digital asset custody and portfolio management
⚖️ Compliance Tools - Regulatory reporting and KYC/AML solutions
📈 Analytics Dashboards - Real-time market data and insights
🤖 Trading Bots - Automated trading and arbitrage strategies

🛠️ Development Stack

Smart Contract Development

Solidity Documentation - CMX Protocol contract reference
Hardhat Integration - Development environment setup
Testing Framework - Comprehensive testing tools
Contract Templates - Starter smart contracts

Frontend Development

JavaScript SDK - React, Vue, Angular integration
TypeScript SDK - Type-safe protocol interactions
React Components - Pre-built UI components
Web3 Integration - Wallet and transaction handling

Backend Development

Node.js SDK - Server-side protocol integration
Python SDK - Data analysis and automation
Go SDK - High-performance backend services
REST APIs - HTTP endpoints for protocol data

📚 Core SDKs

JavaScript/TypeScript SDK

import { CapSignClient, CMXNetwork } from "@capsign/sdk";

// Initialize client
const client = new CapSignClient({
  network: CMXNetwork.MAINNET,
  apiKey: "your-api-key",
});

// Get market data
const markets = await client.markets.getAll();

// Execute trade
const trade = await client.trading.createOrder({
  symbol: "BTC/USD",
  side: "buy",
  amount: 1.0,
  price: 45000,
});

Python SDK

from capsign import CapSignClient, CMXNetwork

# Initialize client
client = CapSignClient(
    network=CMXNetwork.MAINNET,
    api_key='your-api-key'
)

# Get portfolio data
portfolio = client.portfolio.get_balances()

# Create compliance report
report = client.compliance.generate_report(
    start_date='2024-01-01',
    end_date='2024-01-31'
)

🔌 API Reference

REST APIs

Market Data API - Real-time and historical market data
Trading API - Order management and execution
Portfolio API - Asset and position management
Compliance API - Regulatory reporting and checks

GraphQL APIs

query GetMarketData($symbol: String!) {
  market(symbol: $symbol) {
    symbol
    price
    volume24h
    priceChange24h
    orderBook {
      bids {
        price
        quantity
      }
      asks {
        price
        quantity
      }
    }
  }
}

WebSocket APIs

const ws = new CapSignWebSocket({
  url: "wss://api.cmx.network/v1/ws",
  apiKey: "your-api-key",
});

// Subscribe to real-time market data
ws.subscribe("market.BTC/USD", (data) => {
  console.log("Price update:", data.price);
});

// Subscribe to order updates
ws.subscribe("orders.user", (order) => {
  console.log("Order update:", order);
});

🧪 Development Environment

Local Development Setup

# 1. Clone starter template
git clone https://github.com/capsign/dapp-template.git
cd dapp-template

# 2. Install dependencies
npm install

# 3. Configure environment
cp .env.example .env
# Edit .env with your API keys

# 4. Start local development
npm run dev

Testing Environment

🧪 CMX Testnet - Full-featured testing environment
💧 Faucet - Get test CMX tokens for development
🔧 Mock APIs - Simulate trading and market conditions
📊 Test Data - Realistic market data for testing

Deployment Options

🌐 CMX Mainnet - Production deployment
🧪 CMX Testnet - Staging and testing
🏠 Local Node - Private development blockchain
☁️ Managed Infrastructure - Hosted node services

💡 Code Examples & Tutorials

Getting Started Tutorials

First DApp Tutorial - Build a simple trading interface
Token Integration - Work with CMX and other tokens
Compliance Integration - Add KYC/AML to your app
Advanced Trading - Implement complex trading strategies

Code Examples

Trading Bot Example - Automated trading implementation
Portfolio Tracker - Real-time portfolio monitoring
Compliance Dashboard - Regulatory reporting interface
Market Data Feed - Real-time data integration

🔐 Security & Best Practices

Smart Contract Security

Security Audit Guidelines - Best practices for secure contracts
Common Vulnerabilities - Avoid common pitfalls
Testing Strategies - Comprehensive security testing
Audit Resources - Professional audit services

API Security

Authentication - Secure API key management
Rate Limiting - Avoid rate limit issues
Error Handling - Proper error handling patterns
Data Validation - Input validation best practices

🎯 Advanced Topics

Performance Optimization

Gas Optimization - Reduce transaction costs
Caching Strategies - Improve application performance
Batch Operations - Optimize multiple transactions
Query Optimization - Efficient data fetching

Integration Patterns

Event-Driven Architecture - React to blockchain events
Microservices - Scalable service architecture
Data Pipelines - Process market data streams
Multi-Chain - Cross-chain application patterns

📞 Developer Support

Community & Support

Developer Discord - Real-time chat with other developers
GitHub Discussions - Technical discussions
Stack Overflow - Q&A with the community
Office Hours - Weekly developer office hours

Resources

GitHub Organization - All open-source repositories
Developer Blog - Technical insights and tutorials
API Status - Real-time API status monitoring
Developer Newsletter - Monthly updates and releases

Direct Support

Technical Support - Direct developer support
Partnership Inquiries - Integration partnerships
Bug Reports - Report SDK and API issues

Ready to build the future of capital markets? Start with our Quick Start Guide! 🚀💼