Trait actix_web::body::MessageBody

pub trait MessageBody {
    type Error;
    fn size(&self) -> BodySize;
    fn poll_next(
        self: Pin<&mut Self>, 
        cx: &mut Context<'_>
    ) -> Poll<Option<Result<Bytes, Self::Error>>>;
}

An interface for response bodies.

Associated Types

type Error

Required methods

fn size(&self) -> BodySize

Body size hint.

fn poll_next(
    self: Pin<&mut Self>,
    cx: &mut Context<'_>
) -> Poll<Option<Result<Bytes, Self::Error>>>

Attempt to pull out the next chunk of body bytes.

Implementations on Foreign Types

impl MessageBody for ()

type Error = Infallible

pub fn size(&self) -> BodySize

pub fn poll_next(
    self: Pin<&mut ()>,
    &mut Context<'_>
) -> Poll<Option<Result<Bytes, <() as MessageBody>::Error>>>

impl<B> MessageBody for Pin<Box<B, Global>> where
    B: MessageBody, 

type Error = <B as MessageBody>::Error

pub fn size(&self) -> BodySize

pub fn poll_next(
    self: Pin<&mut Pin<Box<B, Global>>>,
    cx: &mut Context<'_>
) -> Poll<Option<Result<Bytes, <Pin<Box<B, Global>> as MessageBody>::Error>>>

impl MessageBody for Vec<u8, Global>

type Error = Infallible

pub fn size(&self) -> BodySize

pub fn poll_next(
    self: Pin<&mut Vec<u8, Global>>,
    &mut Context<'_>
) -> Poll<Option<Result<Bytes, <Vec<u8, Global> as MessageBody>::Error>>>

impl MessageBody for String

type Error = Infallible

pub fn size(&self) -> BodySize

pub fn poll_next(
    self: Pin<&mut String>,
    &mut Context<'_>
) -> Poll<Option<Result<Bytes, <String as MessageBody>::Error>>>

impl<B> MessageBody for Box<B, Global> where
    B: MessageBody + Unpin, 

type Error = <B as MessageBody>::Error

pub fn size(&self) -> BodySize

pub fn poll_next(
    self: Pin<&mut Box<B, Global>>,
    cx: &mut Context<'_>
) -> Poll<Option<Result<Bytes, <Box<B, Global> as MessageBody>::Error>>>

impl MessageBody for &'static str

type Error = Infallible

pub fn size(&self) -> BodySize

pub fn poll_next(
    self: Pin<&mut &'static str>,
    &mut Context<'_>
) -> Poll<Option<Result<Bytes, <&'static str as MessageBody>::Error>>>

impl<B> MessageBody for Encoder<B> where
    B: MessageBody, 

type Error = EncoderError<<B as MessageBody>::Error>

pub fn size(&self) -> BodySize

pub fn poll_next(
    self: Pin<&mut Encoder<B>>,
    cx: &mut Context<'_>
) -> Poll<Option<Result<Bytes, <Encoder<B> as MessageBody>::Error>>>

Implementors

impl MessageBody for AnyBody

type Error = Error

impl MessageBody for Bytes

type Error = Infallible

impl MessageBody for BytesMut

type Error = Infallible

impl MessageBody for BoxAnyBody

type Error = Error

impl<B> MessageBody for ResponseBody<B> where
    B: MessageBody,
    <B as MessageBody>::Error: Into<Error>, 

type Error = Error

impl<S, E> MessageBody for BodyStream<S> where
    E: 'static + Into<Box<dyn Error + 'static, Global>>,
    S: Stream<Item = Result<Bytes, E>>, 

type Error = E

impl<S, E> MessageBody for SizedStream<S> where
    E: 'static + Into<Box<dyn Error + 'static, Global>>,
    S: Stream<Item = Result<Bytes, E>>, 

type Error = E