Cloudflare

the number of objects isn't metered as far as im aware

nor are there read/write costs to the user for now

https://developers.cloudflare.com/workers/learning/using-durable-objects#limitations-during-the-beta

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I got this email from <@!761644541022437436>

those limits are for the early beta only. Eventually there will be effectively no limit on the quantity of data or number of objects.

I mean, the 300MiB storage limit is temporary

I'm finally able to dedicate some time to the beta. Stoked about it.

screen-shot-2020-12-29-at-11-16-48-am

I've got a question regarding the `fetch()` method on the durable object class. Does it have to be a `Request` or can I just pass any kind of string/identifier? I'm confused by the docs.

Also, can `this.storage.put();` store objects, or only text?

Docs call out:
> The value can be any type supported by the structured clone algorithm, which is true of most types.
https://developers.cloudflare.com/workers/runtime-apis/durable-objects#methods
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm

`fetch()` is explicitly HTTP-based. On the calling side it has exactly the signature of the global `fetch()` function. On the receiving end, the parameter is always a `Request` and it must return a `Response`.

As <@!404354256519430148> pointed out, `storage.put()` supports any value that is supported by structured clone. That should be a strict superset of things that you could JSON-stringify, FWIW.

(we use V8 serialization for the actual storage)

```
export class Plugin {

  constructor(state, env) {
    this.storage = state.storage
  }

  async initialize() {
    let stored = await this.storage.get('info')

    this.value = stored || null
  }

  async fetch(request) {
    if (! this.shouldInitialize) {
      this.shouldInitialize = this.initialize()
    }

    await this.shouldInitialize

    let currentValue = this.value

    if (request.method === 'POST') {
      currentValue = this.value = await request.json()

      await this.storage.put('info', this.value)
    }

    return new Response(JSON.stringify(currentValue), {
      headers: { 'Content-Type': 'application/json; charset=utf-8' },
    })
  }
}
```

Now, I'm running a Worker Site. Are there any examples out there where to place the `.mjs` file as well as the `metadata.json` and `calling-worker.json`?

I couldn't find anything, except https://github.com/cloudflare/workers-chat-demo, which isn't Worker Sites specific.

unfortunately, wrangler doesn't yet support modules nor durable objects... and Workers Sites is entirely a feature of wrangler.

so at the moment you would have to disassemble your Workers Site into the raw API calls that Wrangler makes, and make those yourself

so that you could use them together with durable objects

this is something we intend to fix before open beta