* examples: update to `tracing` 0.1.14, use `#[instrument]`
Now that `tracing-attributes`'s `#[instrument]` macro plays nicely with
`async-trait`, we can update the tracing example to use `instrument`.
This lets us simplify the events emitted in the example.
Signed-off-by: Eliza Weisman <[email protected]>
* feat(transport): Dynamic load balancing (#341)
* Fix typo (#356)
Co-authored-by: Dawid Nowak <[email protected]>
Co-authored-by: Paulo Duarte <[email protected]>
* Create an example of an autoreloading server
* Document the autoreloading server example
* Format autoreloading server example
* Add note about cargo-watch in the examples readme
This commit adds a new crate `tonic-health` which implements the
[standard GRPC Health Checking][checking] protocol.
Currently there is only a server implementation, though others have
alluded in the discussion in #135 that client implementations exist
which could also be imported as necessary.
A example server has also been added - once the client work is done a
client for this should be added also.
[checking]: https://github.com/grpc/grpc/blob/master/doc/health-checking.mdFixes#135.
This change introduces proper gRPC interceptors that are avilable
regardless of the transport used. Each codegen service now produces an
additional method called `with_interceptor` that accepts a
`Interceptor`.
All examples have been updated to use this new style and interop has a
custom `tower::Service` middleware to echo the headers. There is also a
new `interceptor` example that shows basic usage.
BREAKING CHANGE: removed `interceptor_fn` and `intercep_headers_fn` from `transport` in favor of using `tonic::Interceptor`.
