correct-apricot

TanStack Start + Prisma edge + Cloudflare Worker fails during deployment

I am trying to deploy to Cloudfare Workers but getting the following reponse when visiting the deployed site:

{"status":500,"unhandled":true,"message":"HTTPError"}

{"status":500,"unhandled":true,"message":"HTTPError"}

Seeing this error on the Cloudflare worker side:

HTTPError: No such module "assets/.prisma/client/edge".
  imported from "assets/db-boN08oha.js"Caused by: Error: No such module "assets/.prisma/client/edge".
  imported from "assets/db-boN08oha.js"

HTTPError: No such module "assets/.prisma/client/edge".
  imported from "assets/db-boN08oha.js"Caused by: Error: No such module "assets/.prisma/client/edge".
  imported from "assets/db-boN08oha.js"

and also during the build, see this in the logs:

...
✓ built in 4.36s
00:42:17.792    vite v7.1.9 building SSR bundle for production...
00:42:17.797    transforming...
00:42:21.776    ".prisma/client/edge" is imported by ".prisma/client/edge?commonjs-external", but could not be resolved – treating it as an external dependency.
00:42:27.800    ✓ 3819 modules transformed.
...

...
✓ built in 4.36s
00:42:17.792    vite v7.1.9 building SSR bundle for production...
00:42:17.797    transforming...
00:42:21.776    ".prisma/client/edge" is imported by ".prisma/client/edge?commonjs-external", but could not be resolved – treating it as an external dependency.
00:42:27.800    ✓ 3819 modules transformed.
...

building on the Cloudflare side with:

"build": "npx prisma generate --no-engine && vite build"

"build": "npx prisma generate --no-engine && vite build"

Any suggestions on whats going on would be great 🙂

7 Replies

correct-apricotOP•2mo ago

schema.prisma:

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider  = "postgresql"
  url       = env("DATABASE_URL")
}

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider  = "postgresql"
  url       = env("DATABASE_URL")
}

vite config:

import { defineConfig } from 'vite'
import { tanstackStart } from '@tanstack/react-start/plugin/vite'
import viteReact from '@vitejs/plugin-react'
import viteTsConfigPaths from 'vite-tsconfig-paths'
import tailwindcss from '@tailwindcss/vite'
import { cloudflare } from '@cloudflare/vite-plugin'

const config = defineConfig({
  plugins: [
    cloudflare({ viteEnvironment: { name: 'ssr' } }),
    // this is the plugin that enables path aliases
    viteTsConfigPaths({
      projects: ['./tsconfig.json'],
    }),
    tailwindcss(),
    tanstackStart(),
    viteReact(),
  ],
  server: {
    allowedHosts: [
    ],
  },
})

export default config

import { defineConfig } from 'vite'
import { tanstackStart } from '@tanstack/react-start/plugin/vite'
import viteReact from '@vitejs/plugin-react'
import viteTsConfigPaths from 'vite-tsconfig-paths'
import tailwindcss from '@tailwindcss/vite'
import { cloudflare } from '@cloudflare/vite-plugin'

const config = defineConfig({
  plugins: [
    cloudflare({ viteEnvironment: { name: 'ssr' } }),
    // this is the plugin that enables path aliases
    viteTsConfigPaths({
      projects: ['./tsconfig.json'],
    }),
    tailwindcss(),
    tanstackStart(),
    viteReact(),
  ],
  server: {
    allowedHosts: [
    ],
  },
})

export default config

exotic-emerald•2mo ago

can you please create an issue here? https://github.com/cloudflare/workers-sdk

GitHub

GitHub - cloudflare/workers-sdk: ⛅️ Home to Wrangler, the CLI f...

⛅️ Home to Wrangler, the CLI for Cloudflare Workers® - cloudflare/workers-sdk

correct-apricotOP•2mo ago

https://github.com/cloudflare/workers-sdk/issues/10969

GitHub

TanStack Start + Prisma edge + Cloudflare Worker fails after deploy...

What versions & operating system are you using? System: OS: macOS 15.6.1 CPU: (14) arm64 Apple M4 Max Memory: 103.16 MB / 36.00 GB Shell: 5.9 - /bin/zsh Binaries: Node: 24.1.0 - /Users//.nvm/ve...

variable-lime•2mo ago

in their docs they recommend a different provider and also recommend accelerate. you could try

variable-lime•2mo ago

https://www.prisma.io/docs/guides/tanstack-start#22-define-your-prisma-schema

How to use Prisma ORM and Prisma Postgres with TanStack Start | Pri...

Learn how to use Prisma ORM in a TanStack Start app

correct-apricotOP•2mo ago

I am using everything the reccomend and still not working, when chaging to this, it crashes the local build with:

Error: No such module "node:os".

Error: No such module "node:os".

also, those docs seem outdated (still using vixi) is there no example of tanstack start using cloudflare + prisma? I see them seperately but seems like there is no clear way to do it together

exotic-emerald•2mo ago

no there is no such example

Gaming

Programming

TanStack Start + Prisma edge + Cloudflare Worker fails during deployment

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