getStaticProps vs getServerSideProps

Introduction to getStaticProps vs getServerSideProps

If you are learning Next.js, you will often see getStaticProps vs getServerSideProps. These are two important methods for fetching data.

Don’t worry! We will understand them in a very easy way 😊

What is getStaticProps?

getStaticProps is used to fetch data at build time.

👉 Simple meaning:
Data is loaded before the website goes live.

• Very fast

• Good for static pages

• Data does not change often

What is getServerSideProps?

getServerSideProps is used to fetch data at request time.

👉 Simple meaning:
Data is loaded every time user opens the page.

• Always fresh data

• Slightly slower

• Good for dynamic pages

How Next.js Fetches Data

Next.js uses two main ways.

Static Generation

• Data is fetched once

• Pages are pre-built

• Very fast loading

Server-Side Rendering

• Data is fetched on every request

• Page is created again and again

• Always updated

Key Differences Between getStaticProps vs getServerSideProps

When to Use getStaticProps

Best Use Cases

Use getStaticProps when:

• Data does not change often

• Pages are public

• You want fast performance

Real Example

👉 Example: Blog website

You write an article once. It does not change every minute.

So, using getStaticProps is perfect.

When to Use getServerSideProps

Best Use Cases

Use getServerSideProps when:

• Data changes frequently

• User-specific data needed

• Real-time updates required

Real Example

👉 Example: User dashboard

Each user sees different data like profile, orders, etc.

So, getServerSideProps is better.

Code Examples

getStaticProps Example

export async function getStaticProps() {
  const res = await fetch('https://api.example.com/posts');
  const data = await res.json();

  return {
    props: { data },
  };
}

👉 Runs only once at build time.

getServerSideProps Example

export async function getServerSideProps() {
  const res = await fetch('https://api.example.com/user');
  const data = await res.json();

  return {
    props: { data },
  };
}

👉 Runs on every request.

Pros and Cons

Advantages

getStaticProps

• Very fast

• Better performance

• Less server load
  

getServerSideProps

• Always updated data

• Good for dynamic apps
  

Disadvantages

getStaticProps

• Data can become outdated
  

getServerSideProps

• Slower

• More server usage
  

Common Mistakes

Wrong Usage

• Using getServerSideProps for static pages ❌

• Using getStaticProps for real-time data ❌
  

Performance Issues

• Too many server-side requests can slow your app
  

Best Practices

Optimization Tips

• Use getStaticProps whenever possible

• Use caching
  

Security Tips

• Never expose sensitive data

• Validate API responses
  

FAQs

1. Which is faster?

getStaticProps is faster because it loads at build time.

2. Which is better for SEO?

Both are good for SEO.

3. Can I use both together?

No, you use one per page.

4. Is getServerSideProps always slow?

Not always, but slower than static.

5. Can getStaticProps update data?

Yes, using revalidation.

6. What is ISR?

Incremental Static Regeneration updates static pages.

Conclusion

Understanding getStaticProps vs getServerSideProps is very important in Next.js.

👉 Use getStaticProps for speed
👉 Use getServerSideProps for real-time data

Start simple. Practice with small examples. Soon, you will master Next.js easily 🚀

🔗 Learn more from official docs: https://nextjs.org/docs/basic-features/data-fetching