New API development
Security audit remediation
Production API hardening
Compliance requirements
High-traffic API protection
Public API exposure

Quick Start

Minimal working example:

// secure-api.js - Comprehensive API security
const express = require("express");
const helmet = require("helmet");
const rateLimit = require("express-rate-limit");
const mongoSanitize = require("express-mongo-sanitize");
const xss = require("xss-clean");
const hpp = require("hpp");
const cors = require("cors");
const jwt = require("jsonwebtoken");
const validator = require("validator");

class SecureAPIServer {
  constructor() {
    this.app = express();
    this.setupSecurityMiddleware();
    this.setupRoutes();
  }

  setupSecurityMiddleware() {
    // 1. Helmet - Set security headers
    this.app.use(
      helmet({
        contentSecurityPolicy: {
          directives: {
            defaultSrc: ["'self'"],
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide	Contents
Node.js/Express API Security	Node.js/Express API Security
Python FastAPI Security	Python FastAPI Security
API Gateway Security Configuration	API Gateway Security Configuration

Best Practices

✅ DO

Use HTTPS everywhere
Implement rate limiting
Validate all inputs
Use security headers
Log security events
Implement CORS properly
Use strong authentication
Version your APIs

❌ DON'T

Expose stack traces
Return detailed errors
Trust user input
Use HTTP for APIs
Skip input validation
Ignore rate limiting

api-security-hardening

API Security Hardening

Table of Contents

Overview

When to Use