Hi, I want to run an async function within a trait method that I implement. Since we know that async functions cannot be run inside regular functions in Rust, and the trait methods I need to implement are regular functions, is there a way to handle this?
If you are running your code outside of the context of an asynchronous runtime, you could use a light-weight executor like pollster or futures::executor.
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If you need this to be compatible with the tokio runtime, then tokio uses Handle for this:
In your trait function, or in a field of your struct that implements the trait, take a Handle, and then call handle.block_on(async_call()).
A Handle should be created by the caller while they are in an async function ran by tokio.
Note that in tokio, block_on can only be called in non-async code. An async function can't call your trait method and then have it run block_on.
If you can change the definition of the trait, you can return Box<dyn Future> from a trait method, or use #[async_trait].
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amazing. its work. thanks alot for your help
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thanks all for your help