Using Service with axum 0.7
#2364
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SummaryHi, impl<S> Service<Request<Body>> for TraceIdService<S>
where
S: Service<Request<Body>>,
{
type Response = S::Response;
type Error = S::Error;
type Future = Instrumented<S::Future>;
fn call(&self, mut req: Request<Body>) -> Self::Future {
let trace_id = TraceId::generate();
let span = trace_span!("request", trace_id = trace_id.to_string());
req.extensions_mut().insert(trace_id);
self.inner.call(req).instrument(span)
}
}And fails with the following error : I tried switching dependencies around a bunch but I am having trouble resolving this. How can I solve this ? The whole code is here on github. axum version0.7.1 |
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Answered by
davidpdrsn
Nov 27, 2023
Replies: 1 comment
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That is because you need to implement impl<S> tower::Service<Request<Body>> for TraceIdService<S>
where
S: tower::Service<Request<Body>>,
{
type Response = S::Response;
type Error = S::Error;
type Future = Instrumented<S::Future>;
fn poll_ready(&mut self, cx: &mut std::task::Context<'_>) -> std::task::Poll<Result<(), Self::Error>> {
self.inner.poll_ready(cx)
}
fn call(&mut self, mut req: Request<Body>) -> Self::Future {
let trace_id = TraceId::generate();
let span = trace_span!("request", trace_id = trace_id.to_string());
req.extensions_mut().insert(trace_id);
self.inner.call(req).instrument(span)
}
}While the traits have the same name they're not interchangeable. |
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0 replies
Answer selected by
niconicoj
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That is because you need to implement
tower::Serviceand nothyper::Service: