* Initial compression support
* Support configuring compression on `Server`
* Minor clean up
* Test that compression is actually happening
* Clean up some todos
* channels compressing requests
* Move compression to be on the codecs
* Test sending compressed request to server that doesn't support it
* Clean up a bit
* Compress server streams
* Compress client streams
* Bidirectional streaming compression
* Handle receiving unsupported encoding
* Clean up
* Add note to future self
* Support disabling compression for individual responses
* Add docs
* Add compression examples
* Disable compression behind feature flag
* Add some docs
* Make flate2 optional dependency
* Fix docs wording
* Format
* Reply with which encodings are supported
* Convert tests to use mocked io
* Fix lints
* Use separate counters
* Don't make a long stream
* Address review feedback
As of `http-body` 0.4.1 its has had a `BoxBody` type similar to
`tonic::body::BoxBody`. It also has `Empty` and `Body::map_{data,err}`.
That means all the custom body things we had in tonic can basically be
replaced with that.
Note that this is a breaking change so we should merge this next time we
decide to ship a breaking release.
The breaking changes are:
- `tonic::body::Body` has been removed. I think its fine for users to
depend directly on `http-body` if they need this trait.
- `tonic::body::BoxBody` is now just a type alias for
`http_body::combinators::BoxBody<Bytes, Status>`. So the methods it
previously had are gone. The replacements are
- `tonic::body::Body::new` -> `http_body::Body::boxed`
- `tonic::body::Body::map_from` -> `http_body::Body::map_data` and
`http_body::Body::map_err` depending on which part you want to map.
- `tonic::body::Body::empty` -> `http_body::Empty`
Additionally a `Sync` bound has been added to a few methods. I actually
don't think this is a breaking change because the old
`tonic::body::Body` trait had `Sync` as a supertrait meaning the `Sync`
requirement was already there.
Fixes https://github.com/hyperium/tonic/issues/557
Adds `tonic::Extensions` which is a newtype around `http::Extensions`.
Request extensions can be set by interceptors with
`Request::extensions_mut` and retrieved from RPCs with
`Request::extensions`. Extensions can also be set in tower middleware
and will be carried through to the RPC.
Since response extensions cannot be set by interceptors the main use
case is to set them in RPCs and retrieve them in tower middlewares.
Figured that might be useful.
Fixes https://github.com/hyperium/tonic/issues/255
Doing
```rust
let clone = self.inner.clone();
Box::pin(async move {
let response = clone.call(request).await?;
Ok(response)
})
```
If `self.inner` is (or contains) a `tower::buffer::Buffer` might panic.
That is because cloning a `Buffer` drops the permit that was acquired in
`poll_ready`, meaning it is no longer ready and panic in `call`.
The solution is to use `mem::replace` to take the ready service and pass
that into the async block.
Fixes https://github.com/hyperium/tonic/issues/545
