Trait MakeHeaderValueFactoryFn 

pub trait MakeHeaderValueFactoryFn<ReqBody, ResBody, A>:
    Send
    + Sync
    + 'static {
    type Maker: MakeHeaderValue<ResBody>;

    // Required method
    fn call(
        &self,
        request: Request<ReqBody>,
    ) -> impl Future<Output = (Request<ReqBody>, Self::Maker)> + Send;
}

Available on crate feature http only.

Functional version of MakeHeaderValue.

Required Associated Types

type Maker: MakeHeaderValue<ResBody>

Required Methods

fn call( &self, request: Request<ReqBody>, ) -> impl Future<Output = (Request<ReqBody>, Self::Maker)> + Send

Try to create a header value from the request or response.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<F, Fut, ReqBody, ResBody, M> MakeHeaderValueFactoryFn<ReqBody, ResBody, ((), Request<ReqBody>)> for F

where ReqBody: Send + 'static, ResBody: Send + 'static, M: MakeHeaderValue<ResBody>, F: Fn(Request<ReqBody>) -> Fut + Send + Sync + 'static, Fut: Future<Output = (Request<ReqBody>, M)> + Send + 'static,

type Maker = M

impl<F, Fut, ReqBody, ResBody, M> MakeHeaderValueFactoryFn<ReqBody, ResBody, ()> for F

where ReqBody: Send + 'static, ResBody: Send + 'static, M: MakeHeaderValue<ResBody>, F: Fn() -> Fut + Send + Sync + 'static, Fut: Future<Output = M> + Send + 'static,

type Maker = M

impl<F, Fut, ReqBody, ResBody> MakeHeaderValueFactoryFn<ReqBody, ResBody, ((), (), ())> for F

where ReqBody: Send + 'static, ResBody: Send + 'static, F: Fn() -> Fut + Clone + Send + Sync + 'static, Fut: Future<Output = Option<HeaderValue>> + Send + 'static,

type Maker = BoxMakeHeaderValueFn<F, ()>

impl<F, Fut, ReqBody, ResBody> MakeHeaderValueFactoryFn<ReqBody, ResBody, ((), (), Response<ResBody>)> for F

where ReqBody: Send + 'static, ResBody: Send + 'static, F: Fn(Response<ResBody>) -> Fut + Clone + Send + Sync + 'static, Fut: Future<Output = (Response<ResBody>, Option<HeaderValue>)> + Send + 'static,

type Maker = BoxMakeHeaderValueFn<F, Response<ResBody>>