Revalidation Strategies

Next.js provides two main ways to revalidate (refresh) data.

1. Time-based Revalidation

Automatically revalidate data after a set period of time. Useful for data specifically that doesn't change often.

tsx
fetch('https://...', { next: { revalidate: 3600 } })

2. On-demand Revalidation

Manually revalidate data when an event occurs (e.g., form submission). Useful for ensuring data is fresh immediately after an update.

• revalidatePath('/blog'): Revalidates a specific route.
• revalidateTag('posts'): Revalidates any cached data tagged with 'posts'.