wrangler dev with durable object configured in wrangler.toml fails in miniflare

[nksaraf]

Usage: miniflare [script] [options]

Core Options:
...

Durable Objects Options:
 -o, --do                Durable Object to bind [array:NAME=CLASS[@MOUNT]]
     --do-persist        Persist Durable Object data (to optional path) [boolean/string]

Unexpected option: --do EXAMPLE_CLASS

I think the class name is not being passed, eg. from miniflare docs:

$ miniflare --do OBJECT1=Object1 --do OBJECT2=Object2

This is my wrangler.toml file:

[durable_objects]
bindings = [
  { name = "EXAMPLE_CLASS", class_name = "DurableObjectExample" } # Binding to our DurableObjectExample class
]

Tried to debug the command running with miniflare:

Users/nikhilsaraf/.fnm/node-versions/v17.1.0/installation/bin/node
/Users/nikhilsaraf/garage/vinxi/vinxi/node_modules/.pnpm/miniflare@2.0.0-rc.4/node_modules/miniflare/dist/src/cli.js
../../../../../../../var/folders/vy/5v99851s36lfnhhyv0xnzr1r0000gn/T/tmp-79777-HunGk45rvLoj/worker.js
--watch
--wrangler-config
/Users/nikhilsaraf/garage/vinxi/vinxi/node_modules/.pnpm/wrangler@0.0.6/node_modules/wrangler/miniflare-config-stubs/wrangler.empty.toml
--env
/Users/nikhilsaraf/garage/vinxi/vinxi/node_modules/.pnpm/wrangler@0.0.6/node_modules/wrangler/miniflare-config-stubs/.env.empty
--package
/Users/nikhilsaraf/garage/vinxi/vinxi/node_modules/.pnpm/wrangler@0.0.6/node_modules/wrangler/miniflare-config-stubs/package.empty.json
--port
8787
--kv-persist
--cache-persist
--do-persist
--do EXAMPLE_CLASS=DurableObjectExample
--modules
true
Usage: miniflare [script] [options]

[threepointone]

You should file this issue under the miniflare repo

[threepointone]

oh wait, you're saying you tried this with wrangler dev. Oh hmm. I'll have a look at this soon.

[threepointone]

can confirm I'm seeing the same thing.
@mrbbot do you see anything obviously wrong with the way I'm passing args here? https://github.com/cloudflare/wrangler2/blob/baf38704ae8f2dc83d7dee340f841fb84aa1099e/packages/wrangler/src/dev.tsx#L250-L283

Here's an example of the args passed to it -

[
  '--experimental-vm-modules',
  '--inspect',
  '/Users/threepointone/code/testdo/node_modules/miniflare/dist/src/cli.js',
  '../../../../../../var/folders/cq/w4qlzy2d4v924d23r3yj7pk00000gn/T/tmp-26115-fSWD0vwV1mxV/server.js',
  '--watch',
  '--wrangler-config',
  '/Users/threepointone/code/testdo/node_modules/wrangler/miniflare-config-stubs/wrangler.empty.toml',
  '--env',
  '/Users/threepointone/code/testdo/node_modules/wrangler/miniflare-config-stubs/.env.empty',
  '--package',
  '/Users/threepointone/code/testdo/node_modules/wrangler/miniflare-config-stubs/package.empty.json',
  '--port',
  '8787',
  '--kv-persist',
  '--cache-persist',
  '--do-persist',
  '--do DurableClass=DurableClass',
  '--modules',
  'true'
]

[mrbbot]

Potentially because --do DurableClass=DurableClass is passed as a single arg and includes both a and =, both of which can be used to separate the arg name from its value. Guessing the arg parser I'm using looks for the last /= character, hence why the unexpected arg name in the error (Unexpected option: --do EXAMPLE_CLASS) is do EXAMPLE_CLASS. Guessing this doesn't happen with --binding or --kv because they don't contain =s? Could probably fix this by replacing that map with a flatMap and returning: ["--do", `${name}=${class_name}`].

[threepointone]

Ok that's probably it, I should've separated it out. Thanks!

[threepointone]

This is fixed in the repo, but we have a bug where alphas aren't being published to npm on every commit right now (fix in #175). Once that lands, you can use wrangler@alpha and this issue should be resolved. Thanks everyone!