Enum B2Callback 

pub enum B2Callback<T: Sync + Send + 'static> {
    Fn(Box<dyn Fn(T) + Send + Sync>),
    AsyncFn(Box<dyn Fn(T) -> BoxFuture<'static, ()> + Send + Sync>),
}

Variants

Fn(Box<dyn Fn(T) + Send + Sync>)

AsyncFn(Box<dyn Fn(T) -> BoxFuture<'static, ()> + Send + Sync>)

Implementations

impl<T: Sync + Send + 'static> B2Callback<T>

pub fn from_fn<F>(fun: F) -> Self

where F: Fn(T) + Send + Sync + 'static,

Construct middleware from function

pub fn from_async_fn<F, R>(fun: F) -> Self

where F: Fn(T) -> R + Send + Sync + 'static, R: Future<Output = ()> + Send + 'static,

Construct middleware from async function