Struct trillium_http::ReceivedBody

pub struct ReceivedBody<'conn, Transport> { /* private fields */ }

A received http body

This type represents a body that will be read from the underlying transport, which it may either borrow from a Conn or own.

let mut conn = Conn::new_synthetic(Method::Get, "/", "hello");
let body = conn.request_body().await;
assert_eq!(body.read_string().await?, "hello");

Implementations

impl<'conn, Transport> ReceivedBody<'conn, Transport> where
    Transport: AsyncRead + Unpin + Send + Sync + 'static, 

pub fn content_length(&self) -> Option<u64>

Returns the content-length of this body, if available. This usually is derived from the content-length header. If the http request or response that this body is attached to uses transfer-encoding chunked, this will be None.

let mut conn = Conn::new_synthetic(Method::Get, "/", "hello");
let body = conn.request_body().await;
assert_eq!(body.content_length(), Some(5));

pub async fn read_string(self) -> Result<String>

Reads the entire body to string, using the encoding determined by the content-type (mime) charset. If an encoding problem is encountered, the String returned by read_string will contain utf8 replacement characters.

Note that this can only be performed once per Conn, as the underlying data is not cached anywhere. This is the only copy of the body contents.

pub async fn read_bytes(self) -> Result<Vec<u8>>

Similar to ReceivedBody::read_string, but returns the raw bytes. This is useful for bodies that are not text.

You can use this in conjunction with encoding if you need different handling of malformed character encoding than the lossy conversion provided by read_string.

pub fn encoding(&self) -> &'static Encoding

returns the character encoding of this body, usually determined from the content type (mime-type) of the associated Conn.

pub async fn drain(self) -> Result<u64>

Consumes the remainder of this body from the underlying transport by reading it to the end and discarding the contents. This is important for http1.1 keepalive, but most of the time you do not need to directly call this. It returns the number of bytes consumed.

impl<T> ReceivedBody<'static, T>

pub fn take_transport(&mut self) -> Option<T>

takes the static transport from this received body

Trait Implementations

impl<'conn, Transport> AsyncRead for ReceivedBody<'conn, Transport> where
    Transport: AsyncRead + Unpin + Send + Sync + 'static, 

fn poll_read(
    self: Pin<&mut Self>,
    cx: &mut Context<'_>,
    buf: &mut [u8]
) -> Poll<Result<usize>>

Attempt to read from the AsyncRead into buf.

fn poll_read_vectored(
    self: Pin<&mut Self>,
    cx: &mut Context<'_>,
    bufs: &mut [IoSliceMut<'_>]
) -> Poll<Result<usize, Error>>

Attempt to read from the AsyncRead into bufs using vectored IO operations.

impl<'conn, Transport> Debug for ReceivedBody<'conn, Transport>

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

Formats the value using the given formatter.

impl<Transport> From<ReceivedBody<'static, Transport>> for Body where
    Transport: AsyncRead + AsyncWrite + Send + Sync + Unpin + 'static, 

fn from(rb: ReceivedBody<'static, Transport>) -> Self

Performs the conversion.

impl<'conn, Transport> Stream for ReceivedBody<'conn, Transport> where
    Transport: AsyncRead + Unpin + Send + Sync + 'static, 

type Item = Vec<u8>

Values yielded by the stream.

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

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted.

fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream.