Stream: cargo-component

Topic: build component with async fn

Ludea (Sep 19 2025 at 14:49):

Hi, I would like to try to create a component with async fn.
I know It's a p3 feature.
But since the release of rc, how to build a component without the wasm32-wasip3 target (not yet release)?
I have to wait his release?

Yosh Wuyts (Sep 19 2025 at 14:51):

@Joel Dice has a good example up here: https://github.com/dicej/hello-wasip3-http/blob/main/Makefile

Yosh Wuyts (Sep 19 2025 at 14:52):

You'll need a custom Wasmtime build off of the man branch with the components feature enabled. Or wait until next Monday's Wasmtime release which will include that.

Ludea (Sep 19 2025 at 14:54):

Awesome, thanks!
Will start with my component today, and Monday update Wasmtime to try to run it

Yosh Wuyts (Sep 19 2025 at 19:06):

Sounds good! Let us know how it goes!

Last updated: Dec 06 2025 at 06:05 UTC