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| <img src="https://raw.githubusercontent.com/tokio-rs/website/master/public/img/icons/tonic.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use crate</span>::{Request, Response, Status, Streaming}; |
| <span class="kw">use </span>futures_core::Stream; |
| <span class="kw">use </span>std::future::Future; |
| <span class="kw">use </span>tower_service::Service; |
| |
| <span class="doccomment">/// A specialization of tower_service::Service. |
| /// |
| /// Existing tower_service::Service implementations with the correct form will |
| /// automatically implement `UnaryService`. |
| </span><span class="kw">pub trait </span>UnaryService<R> { |
| <span class="doccomment">/// Protobuf response message type |
| </span><span class="kw">type </span>Response; |
| |
| <span class="doccomment">/// Response future |
| </span><span class="kw">type </span>Future: Future<Output = <span class="prelude-ty">Result</span><Response<<span class="self">Self</span>::Response>, Status>>; |
| |
| <span class="doccomment">/// Call the service |
| </span><span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<R>) -> <span class="self">Self</span>::Future; |
| } |
| |
| <span class="kw">impl</span><T, M1, M2> UnaryService<M1> <span class="kw">for </span>T |
| <span class="kw">where |
| </span>T: Service<Request<M1>, Response = Response<M2>, Error = <span class="kw">crate</span>::Status>, |
| { |
| <span class="kw">type </span>Response = M2; |
| <span class="kw">type </span>Future = T::Future; |
| |
| <span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<M1>) -> <span class="self">Self</span>::Future { |
| Service::call(<span class="self">self</span>, request) |
| } |
| } |
| |
| <span class="doccomment">/// A specialization of tower_service::Service. |
| /// |
| /// Existing tower_service::Service implementations with the correct form will |
| /// automatically implement `ServerStreamingService`. |
| </span><span class="kw">pub trait </span>ServerStreamingService<R> { |
| <span class="doccomment">/// Protobuf response message type |
| </span><span class="kw">type </span>Response; |
| |
| <span class="doccomment">/// Stream of outbound response messages |
| </span><span class="kw">type </span>ResponseStream: Stream<Item = <span class="prelude-ty">Result</span><<span class="self">Self</span>::Response, Status>>; |
| |
| <span class="doccomment">/// Response future |
| </span><span class="kw">type </span>Future: Future<Output = <span class="prelude-ty">Result</span><Response<<span class="self">Self</span>::ResponseStream>, Status>>; |
| |
| <span class="doccomment">/// Call the service |
| </span><span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<R>) -> <span class="self">Self</span>::Future; |
| } |
| |
| <span class="kw">impl</span><T, S, M1, M2> ServerStreamingService<M1> <span class="kw">for </span>T |
| <span class="kw">where |
| </span>T: Service<Request<M1>, Response = Response<S>, Error = <span class="kw">crate</span>::Status>, |
| S: Stream<Item = <span class="prelude-ty">Result</span><M2, <span class="kw">crate</span>::Status>>, |
| { |
| <span class="kw">type </span>Response = M2; |
| <span class="kw">type </span>ResponseStream = S; |
| <span class="kw">type </span>Future = T::Future; |
| |
| <span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<M1>) -> <span class="self">Self</span>::Future { |
| Service::call(<span class="self">self</span>, request) |
| } |
| } |
| |
| <span class="doccomment">/// A specialization of tower_service::Service. |
| /// |
| /// Existing tower_service::Service implementations with the correct form will |
| /// automatically implement `ClientStreamingService`. |
| </span><span class="kw">pub trait </span>ClientStreamingService<R> { |
| <span class="doccomment">/// Protobuf response message type |
| </span><span class="kw">type </span>Response; |
| |
| <span class="doccomment">/// Response future |
| </span><span class="kw">type </span>Future: Future<Output = <span class="prelude-ty">Result</span><Response<<span class="self">Self</span>::Response>, Status>>; |
| |
| <span class="doccomment">/// Call the service |
| </span><span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<Streaming<R>>) -> <span class="self">Self</span>::Future; |
| } |
| |
| <span class="kw">impl</span><T, M1, M2> ClientStreamingService<M1> <span class="kw">for </span>T |
| <span class="kw">where |
| </span>T: Service<Request<Streaming<M1>>, Response = Response<M2>, Error = <span class="kw">crate</span>::Status>, |
| { |
| <span class="kw">type </span>Response = M2; |
| <span class="kw">type </span>Future = T::Future; |
| |
| <span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<Streaming<M1>>) -> <span class="self">Self</span>::Future { |
| Service::call(<span class="self">self</span>, request) |
| } |
| } |
| |
| <span class="doccomment">/// A specialization of tower_service::Service. |
| /// |
| /// Existing tower_service::Service implementations with the correct form will |
| /// automatically implement `StreamingService`. |
| </span><span class="kw">pub trait </span>StreamingService<R> { |
| <span class="doccomment">/// Protobuf response message type |
| </span><span class="kw">type </span>Response; |
| |
| <span class="doccomment">/// Stream of outbound response messages |
| </span><span class="kw">type </span>ResponseStream: Stream<Item = <span class="prelude-ty">Result</span><<span class="self">Self</span>::Response, Status>>; |
| |
| <span class="doccomment">/// Response future |
| </span><span class="kw">type </span>Future: Future<Output = <span class="prelude-ty">Result</span><Response<<span class="self">Self</span>::ResponseStream>, Status>>; |
| |
| <span class="doccomment">/// Call the service |
| </span><span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<Streaming<R>>) -> <span class="self">Self</span>::Future; |
| } |
| |
| <span class="kw">impl</span><T, S, M1, M2> StreamingService<M1> <span class="kw">for </span>T |
| <span class="kw">where |
| </span>T: Service<Request<Streaming<M1>>, Response = Response<S>, Error = <span class="kw">crate</span>::Status>, |
| S: Stream<Item = <span class="prelude-ty">Result</span><M2, <span class="kw">crate</span>::Status>>, |
| { |
| <span class="kw">type </span>Response = M2; |
| <span class="kw">type </span>ResponseStream = S; |
| <span class="kw">type </span>Future = T::Future; |
| |
| <span class="kw">fn </span>call(<span class="kw-2">&mut </span><span class="self">self</span>, request: Request<Streaming<M1>>) -> <span class="self">Self</span>::Future { |
| Service::call(<span class="self">self</span>, request) |
| } |
| } |
| </code></pre></div> |
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