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Explore the deprecation of Next.js 16 middleware and learn proper authentication implementation strategies in this 23-minute tutorial. Discover what not to do in proxy configurations and understand the correct approaches for handling authentication. Examine major pitfalls when implementing authentication in middleware or proxy layers, with practical demonstrations using Kinde authentication service. Learn about data access layer (DAL) patterns as an alternative approach, including when exceptions to these patterns might apply. Master the distinction between authentication handling in middleware versus page server components, and understand why certain authentication patterns can lead to security vulnerabilities in Next.js applications.
