Discuss getStaticProps in brief

getStaticProps is a Pages Router data fetching method that runs at build time to generate static pages with pre-fetched data

getStaticProps is a special async function used in the Next.js Pages Router (pages directory) to fetch data at build time and pre-render pages as static HTML. It runs on the server-side during the build process, never on the client, and the resulting static files can be cached and served instantly via CDN. This method is essential for Static Site Generation (SSG), enabling you to create fast, SEO-friendly pages with data from external sources like CMS, databases, or file systems. It's important to note that getStaticProps is not available in the App Router - it has been replaced by Server Components and generateStaticParams.

Basic getStaticProps Example

Key Characteristics of getStaticProps

1
Build-time Execution: Runs during next build to generate static HTML and JSON files that are served to users .
2
Server-side Only: Code inside getStaticProps is never exposed to the client; you can safely write server-side logic like database queries .
3
Static Generation: Creates static pages that can be cached on a CDN for optimal performance and reduced server load .
4
Incremental Static Regeneration (ISR): By adding the revalidate property, you can update static content without rebuilding the entire site .
5
Limited to Page Files: Can only be exported from files inside the pages folder, not from components or other files .

getStaticProps is ideal for pages where the data is publicly available, can be fetched ahead of time, and doesn't change frequently or can be updated via ISR. Common use cases include blog posts, marketing pages, documentation sites, e-commerce product pages, and content from headless CMS platforms. It's not suitable for pages that require user-specific data or frequently changing content, where you'd want client-side fetching or server-side rendering with getServerSideProps instead .

getStaticProps with Dynamic Routes

App Router Equivalent

1
getStaticProps → Server Component with generateStaticParams: In the App Router, you simply fetch data directly in a Server Component, and use generateStaticParams for dynamic routes .
2
getStaticPaths → generateStaticParams: The App Router version that returns an array of params for static generation .
3
revalidate → fetch options or segment config: ISR is configured via next: { revalidate } in fetch calls or export const revalidate in page files .
4
The App Router approach is more intuitive as you don't need separate data-fetching functions - you just write async Server Components .

Difficulty: 6/10

Topics: static generation, incremental static regeneration, fallback strategies

Scenario Questions

0-2 years experience

1
How would you use getStaticProps to fetch a list of blog posts for a page that should be generated at build time?
2
If you forget to export getStaticProps from a page component, what will happen when you try to access that page?
3
What does Next.js do if getStaticProps throws an error during the build?

2-5 years experience

1
We need a product page that shows data from an external API, but the data changes daily. How would you implement getStaticProps, and what options would you consider to keep the page up‑to‑date?
2
During a deployment you notice a page using getStaticProps is still showing stale data after the API changed. What could be causing this and how would you debug it?
3
Why can’t a page that uses getStaticProps read request‑specific data like cookies, and how would you work around that limitation?

5-8 years experience

1
Our site has thousands of product pages generated with getStaticProps. Discuss the trade‑offs of using fallback: 'blocking' versus 'true' and how each impacts build time, latency, and caching.
2
We want to implement Incremental Static Regeneration for a high‑traffic news site using getStaticProps. How would you design the revalidation strategy to balance freshness and CDN cache invalidation?
3
If a getStaticProps function runs a large database query, what architectural changes could you make to keep build times reasonable while still delivering static pages?

8+ years experience

1
Our monorepo contains multiple Next.js apps, some using getStaticProps and others using server‑side rendering. How would you create a shared data‑fetching library that supports both, and what migration path would you propose to move legacy SSR pages to ISR without breaking existing contracts?
2
A third‑party API imposes rate limits that conflict with our build‑time data fetching via getStaticProps. How would you redesign the data pipeline at an organization level to respect limits while still delivering static pages?
3
Discuss the long‑term maintenance implications of relying heavily on getStaticProps for dynamic content, and how you would set up monitoring and alerting to catch stale content issues across many teams.

Follow-up Questions

❓When would you prefer getServerSideProps over getStaticProps?
❓How does ISR differ from traditional static generation?
❓What are the limits of using getStaticProps for personalized content?