hello, is it possible to have firebase-admin on cloudflare pages? it keeps getting an error on build, because it relies on node packages

error during build:
Error: Build failed with 158 errors:
node_modules/@fastify/busboy/deps/dicer/lib/Dicer.js:3:31: ERROR: Could not resolve "stream"
node_modules/@fastify/busboy/deps/dicer/lib/Dicer.js:4:25: ERROR: Could not resolve "util"
node_modules/@fastify/busboy/deps/dicer/lib/HeaderParser.js:3:29: ERROR: Could not resolve "events"
node_modules/@fastify/busboy/deps/dicer/lib/HeaderParser.js:4:25: ERROR: Could not resolve "util"
node_modules/@fastify/busboy/deps/dicer/lib/PartStream.js:3:25: ERROR: Could not resolve "util"

firebase-admin

looks to be a long-running server, so no, it won't work on Pages.

> Cloudflare Pages is for static content (HTML, CSS, JS, images and other such files). It will not run a webserver such as Express, Koa or the likes. If you're using those to serve static content then you can just remove that part and use Pages! > > If you're doing more dynamic content you can use Functions (https://developers.cloudflare.com/pages/platform/functions). It will run code on request (so still not a webserver in the conventional sense). This would allow for more dynamic content though especially with KV (Key Value storage) and Durable Objects (transactional data storage). Functions are natively integrated with Pages so are super easy to get up and running along your website. > Otherwise, a good old VPS or dedicated server from one of the many hosts out there is for you.

I'm using this (with sveltekit) https://blog.cloudflare.com/cloudflare-pages-goes-full-stack/

It is, but that's not going to help you here most likely. Node compat mode adds support for a few nodejs things like buffer, etc, but fundamentally Cloudflare Workers have no support creating sockets, Workers are short lived, spun up when needed, etc. It looks like Firebase admin is trying to use Fastify, a nodejs web framework, which just isn't going to work

my code doesn't use the firebase-admin part that uses sockets, etc

My understanding is Vercel has two type of serverless runtimes, Edge functions which run on CF, and serverless functions which run on aws

if it could just build with the polifils, maybe it should work

Ahh sorry I missed the build part before, If that error is happening during build, and you're using the default Build Image v1, it defaults to nodejs 12 (too old for firebase-admin, looks like). You can increase that via "NODE_VERSION" environment variable, or by switching to Build Image v2 which defaults to 18. I haven't used Firebase admin before, but you aren't using the part that uses sockets, you might be fine?