I have written a couple of FromRequest
implementations while using Actix Web, but they have all been synchronous, using Ready
as the associated Future
type. Now I've finally found a situation where I do in fact need to do something asynchronous inside the FromRequest
implementation.
So let's say I write this implementation:
impl FromRequest for . . {
type Error = ...;
fn from_request(...) -> Self::Future {
async { ... }
}
type Future = ???;
}
What type am I meant to put for Future
? I tried impl Future
but apparently that's unstable, and I verified that it does in fact work properly in nightly with the required feature gate. Am I going to have to switch to nightly?
BTW, I know I can do the asynchronous part inside the actual route handler, but I would really like to avoid doing that because adding a parameter to the function and having it be handled automatically is so much nicer.