Trait gotham::middleware::NewMiddleware

pub trait NewMiddleware: Sync + RefUnwindSafe {
    type Instance: Middleware;

    fn new_middleware(&self) -> Result<Self::Instance>;
}

A type which is used to spawn new Middleware values. When implementing a Middleware, this defines how instances of the Middleware are created.

This can be derived by Middleware that implement Clone, and will result in the following implementation:

struct MyMiddleware;

impl NewMiddleware for MyMiddleware {
    type Instance = Self;

    fn new_middleware(&self) -> io::Result<Self::Instance> {
        Ok(self.clone())
    }
}

Required Associated Types

type Instance: Middleware

The type of Middleware created by the NewMiddleware.

Required Methods

fn new_middleware(&self) -> Result<Self::Instance>

Create and return a new Middleware value.

Implementors

impl NewMiddleware for RequestLogger

Implementation of NewMiddleware is required for Gotham middleware.

This will simply dereference the internal state, rather than deriving NewMiddleware which will clone the structure - should be cheaper for repeated calls.

type Instance = RequestLogger

impl NewMiddleware for SimpleLogger

Implementation of NewMiddleware is required for Gotham middleware.

This will simply dereference the internal state, rather than deriving NewMiddleware which will clone the structure - should be cheaper for repeated calls.

type Instance = SimpleLogger

impl NewMiddleware for SecurityMiddleware

NewMiddleware trait implementation.

type Instance = SecurityMiddleware

impl NewMiddleware for RequestTimer

NewMiddleware trait implementation.

type Instance = RequestTimer

impl<B, T> NewMiddleware for NewSessionMiddleware<B, T>where
    B: NewBackend,
    T: Default + Serialize + for<'de> Deserialize<'de> + Send + 'static,

type Instance = SessionMiddleware<<B as NewBackend>::Instance, T>

impl<T> NewMiddleware for StateMiddleware<T>where
    T: Clone + RefUnwindSafe + StateData + Sync,

NewMiddleware trait implementation.

type Instance = StateMiddleware<T>