Next.js Caching Mental Model in 2026: Request Memoization, Data Cache, Full Route Cache, and Router Cache Explained Once and for All - snippet-2.ts

snippet-2.ts

// Cached indefinitely until manual invalidation
const product = await fetch('https://api.example.com/products/123').then(r => r.json());

// Revalidated every 60 seconds
const inventory = await fetch('https://api.example.com/inventory', {
  next: { revalidate: 60 }
}).then(r => r.json());

// Never cached
const user = await fetch('https://api.example.com/user', {
  cache: 'no-store'
}).then(r => r.json());