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# workers-discussions
  • a
    ahhh gotcha
  • w
    (Offtoptic but can't wait for crypto.createHmac)
  • k
    That's the one I see the most people try to port to WebCrypto
  • k
  • w
    I don't know why Web Crypto is such a pain to use
  • w
    Node had very nice APIs
  • k
    CryptoKey bindings will be nice if they follow mTLS certs
  • k
    where you upload it (a la secrets) w/ wrangler and reference it by name
  • a
    Copy code
    ts
export class Counter {
  constructor() {
    setInterval(this.tick.bind(this), 1000);
  }

  async tick() {
    await scheduler.wait(1);
    const now = Date.now();
    console.log(now);
  }

  async fetch() {
    return new Response('Hello, world!');
  }
}
  • a
    no dice
  • a
    Date.now()
    still frozen despite calling 
    scheduler.wait(1)
  • a
    any ideas?
  • a
    neither of these work actually
  • u
    The timer is supposed to have inaccuracy
  • k
    Assuming this is a DO, I can't comment on how time works there
  • a
    i'm not concerned about inaccuracy. the timer simply never advances.
  • a
    yes, it's a DO
  • k
    Copy code
    ts
export default {
  async fetch() {
    const start = Date.now()
    await scheduler.wait(1)
    const end = Date.now()

    return new Response(`scheduler: ${end - start}`)
  }
}
  • k
    This is all I've ever used in the past
  • u
    It does eventually it shouldn't ever be off by more than 2 seconds
  • k
    DO timing has it's own quirks iirc
  • a
    oh, that's in a fetch()
  • a
    i'm doing this in a 
    setInterval
  • a
    it does not ever advance
  • k
    What is 
    now
    showing, a frozen timestamp or 
    0
    ?
  • a
    here's the full code, you can give it a spin yourself:
    Copy code
    ts
export default {
  async fetch(req: Request, env: any) {
    let id = env.COUNTER.idFromName('A');
    let obj = env.COUNTER.get(id);
    return obj.fetch(req);
  },
};

export class Counter {
  constructor() {
    setInterval(this.tick.bind(this), 1000);
  }

  async tick() {
    const start = Date.now();
    await scheduler.wait(1);
    const end = Date.now();

    console.log(`scheduler: ${end - start}ms`);
  }

  async fetch() {
    return new Response('Hello, world!');
  }
}
  • a
    this prints: 
    scheduler: 0ms
    forever
  • u
    Is this a deployed worker?
  • a
    i'm running it locally
  • u
    Oh ok well it's probably a bug in local
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