[v1] D1 binding accessed at module load time, breaks Cloudflare Workers deploy #692
Description
I know this is a nightly version and that the changes are not ready for public scrutiny, but I thought it might be helpful. ;)
When deploying to Cloudflare Workers, the generated hub:db module for D1 fails with:
Uncaught Error: DB binding not found
The issue is in the generated .nuxt/hub/db.mjs:
const binding = process.env.DB || globalThis.__env__?.DB || globalThis.DB
const db = drizzle(binding, { schema })This runs at module load time. On Cloudflare Workers, D1 bindings are only available within request context, not during module initialization.
Repro: Any code that imports hub:db at module load time (via middleware or server utils that are imported by middleware).
Expected: D1 binding access should be lazy - only when actually querying the database.
Workaround: Is there a recommended pattern to access D1 lazily in v1? Currently we're using:
Details
diff --git a/dist/module.mjs b/dist/module.mjs
index 568a901855a52514a111c80e6225fd583076f997..925a5700fa25765126a98d17058a45e7bd48a161 100644
--- a/dist/module.mjs
+++ b/dist/module.mjs
@@ -268,14 +268,20 @@ export { db, schema }
`;
}
if (driver === "d1") {
+ // PATCHED: Lazy D1 binding access - see https://github.com/nuxt-hub/core/issues/692
drizzleOrmContent = `import { drizzle } from 'drizzle-orm/d1'
import * as schema from './db/schema.mjs'
-const binding = process.env.DB || globalThis.__env__?.DB || globalThis.DB
-if (!binding && !import.meta.prerender) {
- throw new Error('DB binding not found')
+let _db
+function getDb() {
+ if (!_db) {
+ const binding = process.env.DB || globalThis.__env__?.DB || globalThis.DB
+ if (!binding) throw new Error('DB binding not found')
+ _db = drizzle(binding, { schema })
+ }
+ return _db
}
-const db = drizzle(binding, { schema })
+const db = new Proxy({}, { get(_, prop) { return getDb()[prop] } })
export { db, schema }
`;
}