Enroll Course: https://www.udemy.com/course/nextjs-v15sms2upstashrate-limiting/

In the ever-evolving landscape of web development, security is paramount. Udemy’s course, **Next.js V15: 電話番号・SMS2段階認証!UpstashでRate Limiting!安全ななセキュリティー**, offers a comprehensive guide to building a full-stack application with robust security features. This course is perfect for both budding developers and seasoned professionals looking to enhance their skills in Next.js and React.

### Course Overview
The course dives deep into implementing SMS two-factor authentication using Vonage, leveraging the latest features of Next.js V15 and React V19. One of the highlights is the use of `useActionState` for managing Server Actions, which streamlines the development process significantly.

Security is a focal point of this course. You will learn about advanced validation techniques using regular expressions, which are crucial for preventing cross-site scripting (XSS) attacks. Additionally, the course covers various hacking techniques such as DoS, DDoS, and EDoS attacks, providing insights into how these exploits work and how to safeguard your applications against them.

### Benefits of Enrolling
1. **Learn SMS Two-Factor Authentication**: Gain hands-on experience in implementing SMS-based two-factor authentication with Vonage, enhancing your application’s security.
2. **Master Server Actions**: Understand how to control Server Actions using `useActionState`, a powerful feature introduced in Next.js V15.
3. **Deepen Your Security Knowledge**: The course offers a thorough understanding of DDoS and EDoS attacks, along with mitigation strategies for AWS and Vercel environments.
4. **Implement Rate Limiting with Upstash**: Learn how to effectively use Upstash for rate limiting, a crucial aspect of maintaining application performance and security.
5. **Input Validation and Sanitization**: Discover techniques for sanitizing input values and implementing robust validation to prevent vulnerabilities.
6. **Build a JWT-Based Authentication System**: Gain the skills to construct an authentication system from scratch using middleware and JWT tokens in Edge Runtime.

### Conclusion
Udemy’s course on Next.js V15 is a must for developers aiming to incorporate top-tier security features into their applications. The instructor’s commitment to providing detailed explanations ensures that you will walk away with practical knowledge and skills that can be immediately applied. Whether you’re looking to enhance your existing projects or start fresh with a secure foundation, this course is an invaluable resource.

I highly recommend enrolling in this course to not only boost your development skills but also to understand the critical aspects of application security in today’s digital age. Don’t miss out on the opportunity to learn from an expert and take your programming abilities to the next level!

Enroll Course: https://www.udemy.com/course/nextjs-v15sms2upstashrate-limiting/