N
Nuxt12mo ago
cosbgn

Do I need to use "lazy" with `useFetch/useAsyncData` when deploying to vercel?

So before I used to have a fully static fronted (nuxt-generate) and a backend API. Now with nuxt3 this got blurred. When I deploy to vercel (without changing any config), nuxt still builds the frontend fully static and backend is lambdas right? Meaning it's all generated at build time, which means I always have to use lazy right?
7 Replies
cosbgn
cosbgnOP10mo ago
From my undertanding, before I was using nuxt/auth (v2) which used localStorage, so I had to always "wait for the client" But now I use auth-utils, which uses cookies, which are available server side, so I don't need to ever use lazy, right? @danielroe sorry to tag you, but I've been trying to understand this for month, and I think you know it super well! 🙂 Pretty much:
I should never use lazy with useFetch unless I have a value like api key / username etc in localstorage?
I should never use lazy with useFetch unless I have a value like api key / username etc in localstorage?
Right?
danielroe
danielroe10mo ago
lazy only affects whether you delay route navigation/displaying the component until the data comes in - it's not related to how you deploy. lazy: true will still wait on the server to get the data before sending HTML. (You can set server: false if you don't want this.)
cosbgn
cosbgnOP10mo ago
Yeah, actually I think I meant server:false (not lazy) so unless I have a specific reason (e.g. I need localStorage) I should never user server:false, right?
danielroe
danielroe10mo ago
yes. if you are generating all your pages in advance, you only want to use server: false if you want to avoid the data fetch being fetched at build time, or if the data fetch depends on some client-side attribute like a user token
cosbgn
cosbgnOP10mo ago
But say I have a page /account which displays different data for each user (depending on a httpOnly cookie) - Will that be generated at built time and display the same data to all users? (I'm not using any specific route rules, just deploy to vercel/cloudflare_pages) as it is
danielroe
danielroe10mo ago
If you're not running nuxi generate or otherwise prerendering those pages, then that should be fine.
cosbgn
cosbgnOP10mo ago
Amazing. Thanks a lot!
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