Struct FnReadiness 

pub struct FnReadiness<F, Err> { /* private fields */ }

A pass-through service with readiness controlled by an asynchronous function.

Implementations

impl<F, Err> FnReadiness<F, Err>

pub fn new<St>(f: F) -> Self

where F: AsyncFn(&St) -> Result<(), Err>,

Creates a readiness service from an asynchronous function.

Trait Implementations

impl<F, Err> Clone for FnReadiness<F, Err>

where F: Clone,

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<F, Err> Debug for FnReadiness<F, Err>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<F, St, Req, Err> Service<St, Req> for FnReadiness<F, Err>

where F: AsyncFn(&St) -> Result<(), Err> + Clone,

type Res = Req

Response produced by the service.

type Error = Err

Error produced while checking readiness or processing a request.

async fn ready(&self, ctx: Ctx<'_, Self, St>) -> Result<(), Err>

Waits until the service is ready to process a request.

async fn call(&self, req: Req, _: Ctx<'_, Self, St>) -> Result<Req, Err>

Processes a request and asynchronously returns the response.

async fn shutdown(&self, ctx: Ctx<'_, Self, St>)

Shuts down the service.

fn map<F, Res>(self, f: F) -> ServiceChain<Map<F, Self, Res>, St, Req>

where Self: Sized, F: Fn(Self::Res) -> Res,

Maps this service’s output to a different type, returning a new service.

fn map_err<F, E>(self, f: F) -> ServiceChain<MapErr<F, Self, E>, St, Req>

where Self: Sized, F: Fn(Self::Error) -> E,

Maps this service’s error to a different type, returning a new service.

fn and_then<Next, F>(self, f: F) -> ServiceChain<AndThen<Self, Next>, St, Req>

where Self: Sized, Next: Service<St, Self::Res, Error = Self::Error>, F: IntoService<Next, St, Self::Res>,

Calls another service after this service completes successfully.

fn pipeline(self, st: St) -> Pipeline<Req, Self::Res, Self::Error>

where Self: Sized + 'static, St: 'static, Req: 'static,

Wraps this service and its state in a Pipeline.

impl<F, Err, St, Req> ServiceFactory<St, Req> for FnReadiness<F, Err>

where F: AsyncFn(&St) -> Result<(), Err> + Clone,

type Res = Req

Response produced by the created services.

type Error = Err

Error produced by the created services.

type Service = FnReadiness<F, Err>

The type of Service produced by this factory.

type InitError = Infallible

Error that can occur while constructing a service.

async fn create(&self, _: &St) -> Result<Self::Service, Self::InitError>

Asynchronously creates a service using the supplied state.

async fn pipeline( &self, st: St, ) -> Result<Pipeline<Req, Self::Res, Self::Error>, Self::InitError>

where Self: 'static, St: 'static, Req: 'static,

Creates a service and wraps it with its state in a Pipeline.

fn map<F, Res>( self, f: F, ) -> ServiceChainFactory<MapFactory<F, Self, Res>, St, Req>

where Self: Sized, F: Fn(Self::Res) -> Res + Clone,

Returns a factory whose services map responses to a different type.

fn map_err<F, E>( self, f: F, ) -> ServiceChainFactory<MapErrFactory<F, Self, E>, St, Req>

where Self: Sized, F: Fn(Self::Error) -> E + Clone,

Returns a factory whose services map errors to a different type.

fn map_init_err<F, E>( self, f: F, ) -> ServiceChainFactory<MapInitErr<F, Self, E>, St, Req>

where Self: Sized, F: Fn(Self::InitError) -> E + Clone,

Maps this factory’s initialization error to a different error, returning a new service factory.

fn and_then<U, F>( self, f: F, ) -> ServiceChainFactory<AndThenFactory<Self, U>, St, Req>

where Self: Sized, U: ServiceFactory<St, Self::Res, Error = Self::Error, InitError = Self::InitError>, F: IntoServiceFactory<U, St, Self::Res>,

Chains another factory after this factory’s services.

fn boxed( self, ) -> BoxServiceFactory<St, Req, Self::Res, Self::Error, Self::InitError>

where St: 'static, Req: 'static, Self: Sized + 'static,

Creates a boxed service factory.