Trait OnBodyChunk

pub trait OnBodyChunk<B> {
    // Required method
    fn on_body_chunk(&mut self, chunk: &B, latency: Duration, span: &Span);
}

Available on crate feature trace only.

Trait used to tell Trace what to do when a body chunk has been sent.

See the module docs for details on exactly when the on_body_chunk callback is called.

Required Methods

fn on_body_chunk(&mut self, chunk: &B, latency: Duration, span: &Span)

Do the thing.

latency is the duration since the response was sent or since the last body chunk as sent.

span is the tracing Span, corresponding to this request, produced by the closure passed to TraceLayer::make_span_with. It can be used to record field values that weren’t known when the span was created.

If you’re using hyper as your server B will most likely be Bytes.

Implementations on Foreign Types

impl<B> OnBodyChunk<B> for ()

fn on_body_chunk(&mut self, _: &B, _: Duration, _: &Span)

Implementors

impl<B> OnBodyChunk<B> for DefaultOnBodyChunk

impl<B, F> OnBodyChunk<B> for F

where F: FnMut(&B, Duration, &Span),