Struct Group 

pub struct Group<S, E>(/* private fields */);

middleware builder type for grouping and nesting multiple middlewares.

Examples

// a simple passthrough middleware function.
async fn mw<S, Req>(svc: &S, req: Req) -> Result<S::Response, S::Error>
where
    S: Service<Req>
{
    svc.call(req).await
}

fn_service(|_: ()| async { Ok::<_, Infallible>(()) })
    .enclosed(
        // group multiple middlewares and apply it to fn_service.
        Group::new()
            .enclosed_fn(mw)
            .enclosed_fn(mw)
    );

Implementations

impl<S, E> Group<S, E>

pub const fn new() -> Self

Trait Implementations

impl<S, E> Clone for Group<S, E>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<S, E> Service<Result<S, E>> for Group<S, E>

type Response = S

The Ok part of output future.

type Error = E

The Err part of output future.

async fn call(&self, res: Result<S, E>) -> Result<Self::Response, Self::Error>

impl<S, E> Copy for Group<S, E>