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# functions
  • w
    Exact!
  • w
    so I need to run it in the following fashion? 
    npx wrangler pages dev -- npm run dev
  • g
    I think that should work, yeah. Then it's hopefully available at localhost:8788
  • w
    do you guys know if this is something which might change later on and either Svelte would run none Node env or if Cloudflare would have a Node env?
  • w
    because I read a post where Cloudflare said the workers support Nodejs
  • g
    Unlikely Svelte make any changes, I imagine
  • w
    and it seams SveltKit is just generating a 
    _worker.js
  • g
    But yes, we're looking at Node polyfills that might make this easier
  • w
  • w
    and it seems they're going on about on how to change the Cloudflare worker to support Node
  • w
    but I can't seem to follow it through
  • w
    unfortunately it does not work, even with Wrangler
  • w
  • w
    but there's no good enough explanation on how to run Node env
  • g
    You can't at the moment. We're still exploring how best to get there.
  • c
    @User so right now I'm using a ~200x300 image, painting an "full inventory" (as seen above) takes about 10-20ms, decoding the background takes about 1-20ms, and and encoding takes about ~3-30ms, so it's pretty fast
  • c
    but it still takes more than one request
  • e
    Thanks for sharing, I thought doing something like that would be beyond the bundled 50ms. So you're doing this in a regular worker and just getting some rough benchmarks, then splitting it into different requests to get it all done. Makes sense and gets the job done, thanks for sharing all of this!
  • c
    has anyone had any lucking using cache?
  • c
    on wrangler, if I cache.put(), the function automatically returns an empty response
  • c
    and on cloudflare, it just fails to deploy
  • g
    Can you share more of the code you’re using?
  • c
    Copy code
    js
var cache: Cache;

export const onRequestPost: PagesFunction<{}> = async ({ request, env }): Promise<Response> => {
  let cached = await cache.match(request);
  if (cached === undefined) {
    return cached;
  }
  // return other stuff
  cache.put(request, response);
};
  • c
    there's a trimmed down version of what I have
  • g
    You need to first get the 
    cache
    from 
    caches.open()
    or 
    caches.default
    . And 
    cache.put()
    returns a void promise which you need to await
  • g
    So you should
    Copy code
    jsexport const onRequestPost: PagesFunction<{}> = async ({ request, env, waitUntil }) => {
  const cache = caches.default
  const cached = await cache.match(request);
  if (cached) {
    return cached;
  }
  // return other stuff
  waitUntil(cache.put(request, response.clone()));
  return response;
};
  • c
    oh right sorry, I missed that in my example >.<
  • c
    long day
  • c
    Copy code
    js
var cache: Cache;

export const onRequestPost: PagesFunction<{}> = async ({ request, env }): Promise<Response> => {
  cache = cache || await caches.open('name');
  let cached = await cache.match(request);
  if (cached === undefined) {
    return cached;
  }
  // get data
  const response = new Response()
  await cache.put(request, response);
  return response;
};
  • c
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