Im asking because I have some issues with fetching some data inside and it looks it takes so much time that it does not load the image for the first time. I have to paste the link somewhere first and it works after some time when I paste it again

/api is not available at build time

okay but sharing this link works after some time like it has a delay, I have to share it once and it works when I just paste it for the second time

and I am not using /app but the old /api version

You using pages router

On the documentation top left

You can change between app and pages

if I use app router are there any edge function limitations?

are there only limitations for pagees

yes

vercel is limited

you can view ur usage in vercel dashboard

usage tab

sorry I was little busy to answer, let me maybe give some more details about the problem - so I want to share user profile to socials, I want to do that by just pasting in a link and it will render this "card" and it looks nice and have some data inside. I am using nextjs /api component for this and Open Graph image render. The problem is that because I need to get profile data first (I cannot pass it through params to /api component) and additionally I have to fetch some external images it takes sometimes 4-5 seconds to load the image. The problem is that when I paste a profile link to twitter and wait few seconds the "card" preview does not load. I have to paste it few times to actually load the data. I've tried to put all the images to my project files and fetch it instead of making external requests but it does not work because edge functions have limit to 2mb. I was able to speed image loading to like 3-4 seconds but its still not enough for twitter to load it correctly.

I have no idea how to fix this

and its a very important feature to let people just copy paste user link and get his statistics