Thank you ! Appreciate your reactivity !

Just out by curiosity, in which case you I use getServerSideProps then ? ( I am using next js 14)

when you are using page router

getServerSideProps doesn't work with app router

Thank you !

Sorry to bother you again ... But here is what I have done ! This is page (in app/test/page.tsx).

getTest.tsx is a call to my database Supabase. (typically, it queries all the data in the table test).

But it does not work. Is it the correct way to do it ? Because it does not work, and when I query it in the client side, it works properly !

if you are using supabase-js, you should fetch the data with useState and useEffect hook

https://supabase.com/docs/guides/getting-started/tutorials/with-nextjs
you may want to check out this guide

Hmm ok i see. All in this guide is what I did ! Does it mean that I can not use the server side of Next Js ? It seems I can just query my data in a client side ! Why I am asking that is because I wanted to benefit the performance of the server side rendering in Next Js. Do you get my point ? Thank you again for your answer

https://supabase.com/docs/guides/getting-started/tutorials/with-nextjs#supabase-server-side-auth
you should use @supabase/ssr package for ssr

and the tutorial will guide you to create a browser client and a server client

I will look at it ! Thank you for your reactivity !