Cloudflare Workers support

[jakubno]

Description

I am currently unable to run our SDK on cloudflare workers. We are using connectRPC in our SDK and we would like to support cloudflare workers for our users.

I've found some information about support for CF workers in v2. Is there any estimate when you plan to release v2?

If you need any additional info, let me know

Minimal example to reproduce:

import { createConnectTransport } from '@connectrpc/connect-node' // I've tried browser as well
import { createClient } from '@connectrpc/connect'
import { Filesystem as FilesystemService } from './filesystem/filesystem_connect'

interface Env {}
export default {
  async fetch(): Promise<Response> {
    const transport = createConnectTransport({
      httpVersion: '2',
      baseUrl: 'https://example.com/my-api',
      useBinaryFormat: false,
    })

    const client = createClient(FilesystemService, transport)
    await client.listDir({ path: 'path/to/dir' })
    const options = { headers: { 'content-type': 'text/plain' } }
    return new Response('hello world!', options)
  },
} satisfies ExportedHandler<Env>

package.json

{
  "name": "divine-hat-13c9",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "deploy": "wrangler deploy",
    "dev": "wrangler dev",
    "start": "wrangler dev",
    "test": "vitest",
    "cf-typegen": "wrangler types"
  },
  "dependencies": {
    "@cloudflare/vitest-pool-workers": "^0.5.2",
    "@cloudflare/workers-types": "^4.20241004.0",
    "typescript": "^5.5.2",
    "@connectrpc/connect": "^1.6.0",
    "@connectrpc/connect-node": "^1.6.0",
    "@connectrpc/connect-web": "^1.6.0",
    "wrangler": "^3.60.4"
  }
}

wrangler.toml

#:schema node_modules/wrangler/config-schema.json
name = "e2b-test"
main = "src/index.ts"
compatibility_date = "2024-10-04"
compatibility_flags = [ "nodejs_compat_v2"]

[observability]
enabled = false

I've tried both @connectrpc/connect-node and @connectrpc/connect-browser. None of them worked, I was getting following errors:

For node + httpVersion 2:

[unenv] http2.connect is not implemented yet!

For node + httpVersion 1.1:

https.request is not implemented yet!

For browser:

 Cause: Error: The 'mode' field on 'RequestInitializerDict' is not implemented.

[timostamm]

Hey Jakub, you can work around this specific issue by using the transport from @connectrpc/connect-web, and providing a fetch option that drops the mode property when passing the request to fetch. You can find more details in #577.

Closing as a duplicate of #550 and #577.