Problem Statement
What is the purpose of getStaticPaths in Next.js?
Explanation
getStaticPaths tells Next.js which dynamic route paths to generate at build time by returning an array of path objects, and it must be used with getStaticProps on pages with dynamic routes like [id].js when using SSG.
The paths array specifies which specific parameter values should be pre-rendered, and the fallback option controls behavior for paths not returned: false means 404 for unlisted paths, true generates pages on-demand, and 'blocking' generates pages server-side without showing a fallback.
This enables statically generating pages for dynamic routes like blog posts or products.
Practice Sets
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