How to execute code in create_local_resource on a different thread other than main?

[anshap1719]

I have a setup where user can pick an image on their local machine and I run some image processing algorithms on the picked image on client side. I achieve this by having a signal for the picked image, and a local resource that is reactive based on this signal.

The process I'm running within this resource fetcher is a long running one (Takes about 21s), and my website seems to lock up completely while it's running. Does the code inside create_local_resource actually run on the main thread despite being async, or could there be some other issue?

Would using spawn_local be a good solution here? Or does that run on the main thread too?

[anshap1719]

P.S. I did do some performance recording via DevTools, and it does seem to run on the main thread. So the actual question is how can I get around this limitation

[gbj]

All code running in the browser, async or not, runs on a single thread, unless you use a Web Worker to spawn an additional thread.

[anshap1719]

@gbj Sorry for my stupid question then, and thanks for your response. I'll mark this as resolved.