Vercel serverless functions doesn't seem to support turborepo internal packages

[kasper573]

I just ran into an error after adding an internal package (https://turbo.build/repo/docs/handbook/sharing-code/internal-packages) to my api app in my turborepo. The api plugs into Vercels serverless functions using a standalone express app (https://vercel.com/guides/using-express-with-vercel#standalone-express), and it worked just fine before adding a workspace:* dependency.

As soon as I added the new dependency I'm getting this runtime error: Cannot find module '/var/task/apps/graphql-api/node_modules/favorite-movies-db-client/src/index.ts' Did you forget to add it to "dependencies" in package.json? RequestId: 9161c7b9-5bf3-4eee-b943-42c63ab447a9 Error: Runtime exited with error: exit status 1 Runtime.ExitError

Is this supposed to be working or am I trying to do something that's not supported?

[kennaruk]

Hi @kasper573,

I got the same issue, any solutions or workaround so far?

[kasper573]

@kennaruk Yeah I worked around it by bundling the server code and pointing the vercel api entrypoint to the bundle instead. It works all right. You can see how I did here

[nktnet1]

Workaround for me was using a bundler like tsdown in combination with vercel primitives and prebuilt deployment.

Solution was inspired by:

• https://stackoverflow.com/a/79709576/22324694

I wrote more in-depth about the approach for my project here:

• How to deploy the backend (hono) server on vercel? nktnet1/rt-stack#21 (reply in thread)