Next.js - Which Data Fetching Method to Use

I see that sanity.io is built with Next JS. Which data fetching method are you guys are using? Because all the three methods have limitations of their own

Hi , we're using a combination of all three on sanity.io depending on the needs of each page. Where we use

getServerSideProps

, we set custom cache headers to not have to compute results on each request. And indeed, we're hosting on Vercel, although the Swag Store is hosted on Netlify.

Are there any docs/tutorials from where I can learn for setting custom cache headers