[BUG] Bindings types aren't being populated despite running `npx wrangler types`

[thomasgauvin]

Describe the bug

When using bindings using getCloudflareContext, then bindings don't seem to be populated on the CloudflareEnv return type, despite running npx wrangler types.

Steps to reproduce

1. Create a OpenNext.js project
2. Add bindings in Wrangler.jsonc
3. npx wrangler types
4. In a server action try to access the binding. Notice binding type error.

Expected behavior

The binding type is properly configured so that intellisense does not complain and we get type safety.

@opennextjs/cloudflare version

1.0.0-beta.3

Wrangler version

4.12.0

next info output

Using vars defined in .dev.vars
/bin/sh: yarn: command not found
/bin/sh: pnpm: command not found

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 23.5.0: Wed May  1 20:16:51 PDT 2024; root:xnu-10063.121.3~5/RELEASE_ARM64_T8103
  Available memory (MB): 16384
  Available CPU cores: 8
Binaries:
  Node: 20.11.0
  npm: 10.2.4
  Yarn: N/A
  pnpm: N/A
Relevant Packages:
  next: 15.3.1 // Latest available version is detected (15.3.1).
  eslint-config-next: 15.3.1
  react: 19.1.0
  react-dom: 19.1.0
  typescript: 5.8.3
Next.js Config:
  output: N/A

Additional context

No response

[Stradi]

You need to run wrangler types --env-interface CloudflareEnv.