nextjs-directives

The 'use cache' directive caches the return value of an async function in Next.js 16 App Router. You apply it to functions to manage caching levels, cache keys, and cache life profiles for optimal data fetching performance.

'use cache: remote' and 'use cache: private' are Next.js 16 directives for distinct caching strategies. They differ in cache levels and handling dynamic content within cached scopes, with private addressing user-specific data and remote addressing shared external resources.

Data not updating after a Server Action mutation often relates to improper cache invalidation tags. Next.js 16 requires configuring cache invalidation tags correctly to ensure cached scopes refresh after server-side mutations complete.

Use 'use client' for components requiring client-side interactivity, while server components handle server-side rendering. Defining these client-server boundaries correctly in Next.js 16 ensures robust application architecture without unnecessary client-side JavaScript.

Securing Server Actions with the 'use server' directive involves defining server-side mutations safely. Next.js 16 provides specific rules for Server Actions security, including progressive enhancement and avoiding common implementation pitfalls.

Yes, Next.js 16 allows dynamic content handling within cached scopes. The App Router directives provide mechanisms to manage dynamic data alongside cached return values, ensuring content remains fresh where needed without invalidating the entire cache.