Trait NewMiddleware

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

    // Required method
    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) -> anyhow::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 CookieParser

NewMiddleware trait implementation.

type Instance = CookieParser

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<T> NewMiddleware for StateMiddleware<T>

where T: Clone + RefUnwindSafe + StateData + Sync,

NewMiddleware trait implementation.

type Instance = StateMiddleware<T>