Swagger DAPA API

Name	Link
Swagger API	https://swagger.dapahe.com (opens in a new tab)

DAPA Blockchain REST API Documentation

Overview

The DAPA Blockchain REST API provides a modern, developer-friendly interface to interact with the DAPA blockchain network. Built as a REST-to-RPC proxy, this API translates standard HTTP REST calls into JSON-RPC calls that communicate directly with DAPA blockchain nodes.

Architecture

Backend: DAPA blockchain nodes using JSON-RPC protocol
Frontend: REST API proxy server with Swagger documentation
Documentation: Interactive Swagger UI at https://swagger.dapahe.com/

The API serves as a translation layer, converting RESTful HTTP requests into the JSON-RPC format that DAPA blockchain nodes understand, making blockchain interaction more accessible for web developers.

Key Features

RESTful Interface

Standard HTTP methods (GET, POST, PUT, DELETE)
JSON request/response format
Clean, intuitive endpoint structure
CORS support for web applications

Interactive Documentation

Swagger UI: Complete interactive API documentation
Live Testing: Test endpoints directly from the documentation
Request Examples: Sample requests and responses for all endpoints
OpenAPI 3.0: Industry-standard API specification

Production-Ready Infrastructure

Nginx Reverse Proxy: High-performance web server with SSL termination
SSL/TLS Security: Let's Encrypt certificates with automatic renewal
Rate Limiting: Protection against API abuse
Health Monitoring: Automated service health checks
Load Balancing: Support for multiple backend nodes

Developer Experience

Python Flask Backend: Lightweight, scalable API server
CORS Enabled: Ready for web application integration
Error Handling: Comprehensive error responses with status codes
API Versioning: Support for multiple API versions

API Endpoints

Blockchain Information

GET /api/blocks              # Retrieve block information
GET /api/blocks/{hash}       # Get specific block details
GET /api/transactions        # Transaction history
GET /api/network/stats       # Network statistics

Wallet Operations

GET /api/wallet/balance      # Check wallet balance
POST /api/wallet/send        # Send transactions
GET /api/wallet/history      # Transaction history

Network Status

GET /api/health              # API health check
GET /service-status          # Service status endpoint
GET /api/nodes               # Active node information

Technical Specifications

Request Format

{
  "method": "POST",
  "headers": {
    "Content-Type": "application/json",
    "X-API-Key": "your-api-key"
  },
  "body": {
    "amount": "100.00",
    "recipient": "dapa_address_here"
  }
}

Response Format

{
  "status": "success",
  "data": {
    "transaction_id": "tx_123456789",
    "block_height": 150234,
    "confirmations": 6
  },
  "timestamp": "2025-09-22T10:30:00Z",
  "api_version": "1.0"
}

Error Handling

{
  "status": "error",
  "error": {
    "code": 400,
    "message": "Invalid wallet address format",
    "details": "Address must start with 'dapa_'"
  },
  "timestamp": "2025-09-22T10:30:00Z"
}

Security Features

Authentication

API key authentication for protected endpoints
Rate limiting per API key
IP whitelisting for administrative functions

SSL/TLS

Let's Encrypt SSL certificates
HTTP/2 support
HSTS security headers
Automatic certificate renewal

Network Security

Firewall configuration (UFW)
Direct API port blocking
Nginx reverse proxy protection
Request validation and sanitization

Deployment Stack

Web Server

Nginx: Reverse proxy with SSL termination
Certbot: Automatic SSL certificate management
HTTP/2: Modern protocol support

API Server

Python 3.8+: Backend runtime
Flask: Web framework
Gunicorn: WSGI server for production
Virtual Environment: Isolated dependencies

Monitoring

Systemd: Service management
Log Rotation: Automated log management
Health Checks: Automated service monitoring
Backup Scripts: Configuration and data backups

Getting Started

Base URL

https://swagger.dapahe.com/

Authentication

Contact the DAPA team to obtain API credentials for protected endpoints.

Example Request

curl -X GET "https://swagger.dapahe.com/api/network/stats" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: your-api-key"

Example Response

{
  "status": "success",
  "data": {
    "block_height": 150234,
    "network_difficulty": "0x1d00ffff",
    "active_nodes": 47,
    "transactions_24h": 1205,
    "avg_block_time": "15.2s"
  },
  "timestamp": "2025-09-22T10:30:00Z"
}

Use Cases

Web Applications

Integrate DAPA payments into e-commerce platforms
Build blockchain explorers and analytics dashboards
Create wallet applications with web interfaces

Mobile Development

Develop mobile wallet applications
Integrate DAPA transactions in mobile apps
Build payment processing systems

Enterprise Integration

Connect existing systems to DAPA blockchain
Automate payment processing
Build custom reporting and analytics tools

DeFi Applications

Create decentralized finance applications
Build smart contract interfaces
Develop trading and exchange platforms

Benefits

For Developers

Familiar REST Interface: No need to learn JSON-RPC protocols
Comprehensive Documentation: Interactive Swagger UI
Quick Integration: Standard HTTP calls work out of the box
Multiple Language Support: Works with any programming language

For Businesses

Rapid Deployment: Production-ready infrastructure
Scalable Architecture: Handle high transaction volumes
Secure by Default: Enterprise-grade security features
Cost Effective: Reduce blockchain integration complexity

Performance

High Throughput: Optimized for concurrent requests
Low Latency: Direct connection to DAPA nodes
Caching: Intelligent response caching where appropriate
Load Balancing: Distribute load across multiple nodes

Support and Documentation

Interactive Documentation: Available at https://swagger.dapahe.com/
API Specification: OpenAPI 3.0 compliant
Example Code: Available for multiple programming languages
Community Support: Active developer community

Conclusion

The DAPA Blockchain REST API provides a modern, secure, and developer-friendly way to interact with the DAPA blockchain network. By abstracting the complexity of JSON-RPC calls behind a familiar REST interface, developers can quickly integrate DAPA blockchain functionality into their applications while maintaining the security and reliability of direct blockchain communication.

Whether you're building a simple payment processor or a complex DeFi application, the DAPA REST API provides the tools and documentation needed to get started quickly and scale effectively.

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