How to use / enable 'eval()' in CF workers?
I would love to use eval in my workers code and I fully understand the risks of it.
It seems the PR has made it available in workerd and workers SDK, is it available on CF workers as well yet? How can I enable it? https://github.com/cloudflare/workerd/pull/1338
I'm not sure how to set the --experimental flag if so, (Still getting eval is undefined after wrangler build --experimental)
GitHub
Implement an
UnsafeEval binding by jasnell · Pull Request #1338 ·...This adds a new UnsafeEval binding APi that is intended only for use with workerd and only when the --experimental flag is specified. See the included test for an example on how to use it.
console....
12 Replies
I'd be very surprised if this is ever enabled on hosted cloudflare workers, afaik in the past they have been very strict in saying this would not come because it cannot be audited what runs through it. Workers for platforms will eventually be available to Pay-Go customers which supports uploading unlimited number of scripts.
But what is the concern if the developer is aware unsafe code can be ran?
Like the developer opts in
Cloudflare wants to be able to audit what is run the concern isnt with the user uploading the worker
does this mean all code is shared and accessible by cloudflare
or is there some sort of privacy when using cf workers
They obviously have some level of access when required but they dont snoop into user code
https://github.com/cloudflare/workerd/pull/1338#issuecomment-1789104894
Since dynamic code evaluation is only meant to be used by development tooling (test runner code, dev server code) I think we should be intentional about not easily exposing it to user code running within this development tooling.Yeah this feature is only meant for dev tooling
rip really was looking forward to using cf workers
any other service you suggest with low cold start times for js? (that supports eval)
Cloudflare offers #workers-for-platforms if you are wanting to run user code. Currently ent only but pay-go is coming at some point (and you can get early access by dm'ing the pm)
Awesome, is skye_31 the pm?
No the pm is tanushree
Thank you!