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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Middleware for logging request and response summaries to the terminal."><title>Logger in actix_web::middleware - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-dd39b87e5fcfba68.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="actix_web" data-themes="" data-resource-suffix="" data-rustdoc-version="1.80.0-nightly (bdbbb6c6a 2024-05-26)" data-channel="nightly" data-search-js="search-d52510db62a78183.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-118b08c4c78b968e.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-20a3ad099b048cf2.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-df360f571f6edeae.css"></noscript><link rel="icon" href="https://actix.rs/favicon.ico"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button><a class="logo-container" href="../../actix_web/index.html"><img src="https://actix.rs/img/logo.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../../actix_web/index.html"><img src="https://actix.rs/img/logo.png" alt="logo"></a><h2><a href="../../actix_web/index.html">actix_web</a><span class="version">4.6.0</span></h2></div><h2 class="location"><a href="#">Logger</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.custom_request_replace">custom_request_replace</a></li><li><a href="#method.custom_response_replace">custom_response_replace</a></li><li><a href="#method.exclude">exclude</a></li><li><a href="#method.exclude_regex">exclude_regex</a></li><li><a href="#method.log_target">log_target</a></li><li><a href="#method.new">new</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Debug-for-Logger">Debug</a></li><li><a href="#impl-Default-for-Logger">Default</a></li><li><a href="#impl-Transform%3CS,+ServiceRequest%3E-for-Logger">Transform&lt;S, ServiceRequest&gt;</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-RefUnwindSafe-for-Logger">!RefUnwindSafe</a></li><li><a href="#impl-Send-for-Logger">!Send</a></li><li><a href="#impl-Sync-for-Logger">!Sync</a></li><li><a href="#impl-UnwindSafe-for-Logger">!UnwindSafe</a></li><li><a href="#impl-Freeze-for-Logger">Freeze</a></li><li><a href="#impl-Unpin-for-Logger">Unpin</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-T">From&lt;T&gt;</a></li><li><a href="#impl-Instrument-for-T">Instrument</a></li><li><a href="#impl-Into%3CU%3E-for-T">Into&lt;U&gt;</a></li><li><a href="#impl-Same-for-T">Same</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto&lt;U&gt;</a></li><li><a href="#impl-VZip%3CV%3E-for-T">VZip&lt;V&gt;</a></li><li><a href="#impl-WithSubscriber-for-T">WithSubscriber</a></li></ul></section><h2><a href="index.html">In actix_web::middleware</a></h2></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="../index.html">actix_web</a>::<wbr><a href="index.html">middleware</a>::<wbr><a class="struct" href="#">Logger</a><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><span class="out-of-band"><a class="src" href="../../src/actix_web/middleware/logger.rs.html#87">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub struct Logger(<span class="comment">/* private fields */</span>);</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Middleware for logging request and response summaries to the terminal.</p>
<p>This middleware uses the <code>log</code> crate to output information. Enable <code>log</code>s output for the
“actix_web” scope using <a href="https://docs.rs/env_logger"><code>env_logger</code></a> or similar crate.</p>
<h2 id="default-format"><a class="doc-anchor" href="#default-format">§</a>Default Format</h2>
<p>The <a href="struct.Logger.html#method.default" title="associated function actix_web::middleware::Logger::default"><code>default</code></a> Logger uses the following format:</p>
<div class="example-wrap"><pre class="language-plain"><code>%a &quot;%r&quot; %s %b &quot;%{Referer}i&quot; &quot;%{User-Agent}i&quot; %T
Example Output:
127.0.0.1:54278 &quot;GET /test HTTP/1.1&quot; 404 20 &quot;-&quot; &quot;HTTPie/2.2.0&quot; 0.001074
</code></pre></div><h2 id="examples"><a class="doc-anchor" href="#examples">§</a>Examples</h2>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>actix_web::{middleware::Logger, App};
<span class="comment">// access logs are printed with the INFO level so ensure it is enabled by default
</span>env_logger::init_from_env(env_logger::Env::new().default_filter_or(<span class="string">"info"</span>));
<span class="kw">let </span>app = App::new()
<span class="comment">// .wrap(Logger::default())
</span>.wrap(Logger::new(<span class="string">"%a %{User-Agent}i"</span>));</code></pre></div>
<h2 id="format"><a class="doc-anchor" href="#format">§</a>Format</h2><div><table><thead><tr><th>Variable</th><th>Description</th></tr></thead><tbody>
<tr><td><code>%%</code></td><td>The percent sign</td></tr>
<tr><td><code>%a</code></td><td>Peer IP address (or IP address of reverse proxy if used)</td></tr>
<tr><td><code>%t</code></td><td>Time when the request started processing (in RFC 3339 format)</td></tr>
<tr><td><code>%r</code></td><td>First line of request (Example: <code>GET /test HTTP/1.1</code>)</td></tr>
<tr><td><code>%s</code></td><td>Response status code</td></tr>
<tr><td><code>%b</code></td><td>Size of response in bytes, including HTTP headers</td></tr>
<tr><td><code>%T</code></td><td>Time taken to serve the request, in seconds to 6 decimal places</td></tr>
<tr><td><code>%D</code></td><td>Time taken to serve the request, in milliseconds</td></tr>
<tr><td><code>%U</code></td><td>Request URL</td></tr>
<tr><td><code>%{r}a</code></td><td>“Real IP” remote address <strong>*</strong></td></tr>
<tr><td><code>%{FOO}i</code></td><td><code>request.headers[&quot;FOO&quot;]</code></td></tr>
<tr><td><code>%{FOO}o</code></td><td><code>response.headers[&quot;FOO&quot;]</code></td></tr>
<tr><td><code>%{FOO}e</code></td><td><code>env_var[&quot;FOO&quot;]</code></td></tr>
<tr><td><code>%{FOO}xi</code></td><td><a href="struct.Logger.html#method.custom_request_replace" title="method actix_web::middleware::Logger::custom_request_replace">Custom request replacement</a> labelled “FOO”</td></tr>
<tr><td><code>%{FOO}xo</code></td><td><a href="struct.Logger.html#method.custom_response_replace" title="method actix_web::middleware::Logger::custom_response_replace">Custom response replacement</a> labelled “FOO”</td></tr>
</tbody></table>
</div><h2 id="security"><a class="doc-anchor" href="#security">§</a>Security</h2>
<p><strong>*</strong> “Real IP” remote address is calculated using
<a href="../dev/struct.ConnectionInfo.html#method.realip_remote_addr" title="method actix_web::dev::ConnectionInfo::realip_remote_addr"><code>ConnectionInfo::realip_remote_addr()</code></a></p>
<p>If you use this value, ensure that all requests come from trusted hosts. Otherwise, it is
trivial for the remote client to falsify their source IP address.</p>
</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Logger" class="impl"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#97-231">source</a><a href="#impl-Logger" class="anchor">§</a><h3 class="code-header">impl <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.new" class="method"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#99-106">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fn">new</a>(format: &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -&gt; <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h4></section></summary><div class="docblock"><p>Create <code>Logger</code> middleware with the specified <code>format</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.exclude" class="method"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#109-115">source</a><h4 class="code-header">pub fn <a href="#method.exclude" class="fn">exclude</a>&lt;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>&gt;&gt;(self, path: T) -&gt; Self</h4></section></summary><div class="docblock"><p>Ignore and do not log access info for specified path.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.exclude_regex" class="method"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#118-122">source</a><h4 class="code-header">pub fn <a href="#method.exclude_regex" class="fn">exclude_regex</a>&lt;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>&gt;&gt;(self, path: T) -&gt; Self</h4></section></summary><div class="docblock"><p>Ignore and do not log access info for paths that match regex.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.log_target" class="method"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#136-140">source</a><h4 class="code-header">pub fn <a href="#method.log_target" class="fn">log_target</a>(self, target: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;<a class="enum" href="https://doc.rust-lang.org/nightly/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow">Cow</a>&lt;'static, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>&gt;&gt;) -&gt; Self</h4></section></summary><div class="docblock"><p>Sets the logging target to <code>target</code>.</p>
<p>By default, the log target is <code>module_path!()</code> of the log call location. In our case, that
would be <code>actix_web::middleware::logger</code>.</p>
<h5 id="examples-1"><a class="doc-anchor" href="#examples-1">§</a>Examples</h5>
<p>Using <code>.log_target(&quot;http_log&quot;)</code> would have this effect on request logs:</p>
<div class="example-wrap"><pre class="language-diff"><code>- [2015-10-21T07:28:00Z INFO actix_web::middleware::logger] 127.0.0.1 &quot;GET / HTTP/1.1&quot; 200 88 &quot;-&quot; &quot;dmc/1.0&quot; 0.001985
+ [2015-10-21T07:28:00Z INFO http_log] 127.0.0.1 &quot;GET / HTTP/1.1&quot; 200 88 &quot;-&quot; &quot;dmc/1.0&quot; 0.001985
^^^^^^^^
</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.custom_request_replace" class="method"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#156-181">source</a><h4 class="code-header">pub fn <a href="#method.custom_request_replace" class="fn">custom_request_replace</a>(
self,
label: &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>,
f: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.Fn.html" title="trait core::ops::function::Fn">Fn</a>(&amp;<a class="struct" href="../dev/struct.ServiceRequest.html" title="struct actix_web::dev::ServiceRequest">ServiceRequest</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a> + 'static
) -&gt; Self</h4></section></summary><div class="docblock"><p>Register a function that receives a ServiceRequest and returns a String for use in the
log line. The label passed as the first argument should match a replacement substring in
the logger format like <code>%{label}xi</code>.</p>
<p>It is convention to print “-” to indicate no output instead of an empty string.</p>
<h5 id="examples-2"><a class="doc-anchor" href="#examples-2">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code>Logger::new(<span class="string">"example %{JWT_ID}xi"</span>)
.custom_request_replace(<span class="string">"JWT_ID"</span>, |req| parse_jwt_id(req.headers().get(<span class="string">"Authorization"</span>)));</code></pre></div>
</div></details><details class="toggle method-toggle" open><summary><section id="method.custom_response_replace" class="method"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#207-230">source</a><h4 class="code-header">pub fn <a href="#method.custom_response_replace" class="fn">custom_response_replace</a>(
self,
label: &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>,
f: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.Fn.html" title="trait core::ops::function::Fn">Fn</a>(&amp;<a class="struct" href="../dev/struct.ServiceResponse.html" title="struct actix_web::dev::ServiceResponse">ServiceResponse</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a> + 'static
) -&gt; Self</h4></section></summary><div class="docblock"><p>Register a function that receives a <code>ServiceResponse</code> and returns a string for use in the
log line.</p>
<p>The label passed as the first argument should match a replacement substring in
the logger format like <code>%{label}xo</code>.</p>
<p>It is convention to print “-” to indicate no output instead of an empty string.</p>
<p>The replacement function does not have access to the response body.</p>
<h5 id="examples-3"><a class="doc-anchor" href="#examples-3">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">fn </span>log_if_error(res: <span class="kw-2">&amp;</span>ServiceResponse) -&gt; String {
<span class="kw">if </span>res.status().as_u16() &gt;= <span class="number">400 </span>{
<span class="string">"ERROR"</span>.to_string()
} <span class="kw">else </span>{
<span class="string">"-"</span>.to_string()
}
}
Logger::new(<span class="string">"example %{ERROR_STATUS}xo"</span>)
.custom_response_replace(<span class="string">"ERROR_STATUS"</span>, |res| log_if_error(res) );</code></pre></div>
</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-Logger" class="impl"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#86">source</a><a href="#impl-Debug-for-Logger" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#86">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Default-for-Logger" class="impl"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#233-247">source</a><a href="#impl-Default-for-Logger" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.default" class="method trait-impl"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#239-246">source</a><a href="#method.default" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default" class="fn">default</a>() -&gt; <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h4></section></summary><div class="docblock"><p>Create <code>Logger</code> middleware with format:</p>
<div class="example-wrap"><pre class="language-plain"><code>%a &quot;%r&quot; %s %b &quot;%{Referer}i&quot; &quot;%{User-Agent}i&quot; %T
</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Transform%3CS,+ServiceRequest%3E-for-Logger" class="impl"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#249-282">source</a><a href="#impl-Transform%3CS,+ServiceRequest%3E-for-Logger" class="anchor">§</a><h3 class="code-header">impl&lt;S, B&gt; <a class="trait" href="../dev/trait.Transform.html" title="trait actix_web::dev::Transform">Transform</a>&lt;S, <a class="struct" href="../dev/struct.ServiceRequest.html" title="struct actix_web::dev::ServiceRequest">ServiceRequest</a>&gt; for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a><div class="where">where
S: <a class="trait" href="../dev/trait.Service.html" title="trait actix_web::dev::Service">Service</a>&lt;<a class="struct" href="../dev/struct.ServiceRequest.html" title="struct actix_web::dev::ServiceRequest">ServiceRequest</a>, Response = <a class="struct" href="../dev/struct.ServiceResponse.html" title="struct actix_web::dev::ServiceResponse">ServiceResponse</a>&lt;B&gt;, Error = <a class="struct" href="../error/struct.Error.html" title="struct actix_web::error::Error">Error</a>&gt;,
B: <a class="trait" href="../body/trait.MessageBody.html" title="trait actix_web::body::MessageBody">MessageBody</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Response" class="associatedtype trait-impl"><a href="#associatedtype.Response" class="anchor">§</a><h4 class="code-header">type <a href="../dev/trait.Transform.html#associatedtype.Response" class="associatedtype">Response</a> = <a class="struct" href="../dev/struct.ServiceResponse.html" title="struct actix_web::dev::ServiceResponse">ServiceResponse</a>&lt;StreamLog&lt;B&gt;&gt;</h4></section></summary><div class='docblock'>Responses produced by the service.</div></details><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="../dev/trait.Transform.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="struct" href="../error/struct.Error.html" title="struct actix_web::error::Error">Error</a></h4></section></summary><div class='docblock'>Errors produced by the service.</div></details><details class="toggle" open><summary><section id="associatedtype.Transform" class="associatedtype trait-impl"><a href="#associatedtype.Transform" class="anchor">§</a><h4 class="code-header">type <a href="../dev/trait.Transform.html#associatedtype.Transform" class="associatedtype">Transform</a> = LoggerMiddleware&lt;S&gt;</h4></section></summary><div class='docblock'>The <code>TransformService</code> value created by this factory</div></details><details class="toggle" open><summary><section id="associatedtype.InitError" class="associatedtype trait-impl"><a href="#associatedtype.InitError" class="anchor">§</a><h4 class="code-header">type <a href="../dev/trait.Transform.html#associatedtype.InitError" class="associatedtype">InitError</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a></h4></section></summary><div class='docblock'>Errors produced while building a transform service.</div></details><details class="toggle" open><summary><section id="associatedtype.Future" class="associatedtype trait-impl"><a href="#associatedtype.Future" class="anchor">§</a><h4 class="code-header">type <a href="../dev/trait.Transform.html#associatedtype.Future" class="associatedtype">Future</a> = Ready&lt;<a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;&lt;<a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a> as <a class="trait" href="../dev/trait.Transform.html" title="trait actix_web::dev::Transform">Transform</a>&lt;S, <a class="struct" href="../dev/struct.ServiceRequest.html" title="struct actix_web::dev::ServiceRequest">ServiceRequest</a>&gt;&gt;::<a class="associatedtype" href="../dev/trait.Transform.html#associatedtype.Transform" title="type actix_web::dev::Transform::Transform">Transform</a>, &lt;<a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a> as <a class="trait" href="../dev/trait.Transform.html" title="trait actix_web::dev::Transform">Transform</a>&lt;S, <a class="struct" href="../dev/struct.ServiceRequest.html" title="struct actix_web::dev::ServiceRequest">ServiceRequest</a>&gt;&gt;::<a class="associatedtype" href="../dev/trait.Transform.html#associatedtype.InitError" title="type actix_web::dev::Transform::InitError">InitError</a>&gt;&gt;</h4></section></summary><div class='docblock'>The future response value.</div></details><details class="toggle method-toggle" open><summary><section id="method.new_transform" class="method trait-impl"><a class="src rightside" href="../../src/actix_web/middleware/logger.rs.html#260-281">source</a><a href="#method.new_transform" class="anchor">§</a><h4 class="code-header">fn <a href="../dev/trait.Transform.html#tymethod.new_transform" class="fn">new_transform</a>(&amp;self, service: S) -&gt; Self::<a class="associatedtype" href="../dev/trait.Transform.html#associatedtype.Future" title="type actix_web::dev::Transform::Future">Future</a></h4></section></summary><div class='docblock'>Creates and returns a new Transform component, asynchronously</div></details></div></details></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-Freeze-for-Logger" class="impl"><a href="#impl-Freeze-for-Logger" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section><section id="impl-RefUnwindSafe-for-Logger" class="impl"><a href="#impl-RefUnwindSafe-for-Logger" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section><section id="impl-Send-for-Logger" class="impl"><a href="#impl-Send-for-Logger" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section><section id="impl-Sync-for-Logger" class="impl"><a href="#impl-Sync-for-Logger" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section><section id="impl-Unpin-for-Logger" class="impl"><a href="#impl-Unpin-for-Logger" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section><section id="impl-UnwindSafe-for-Logger" class="impl"><a href="#impl-UnwindSafe-for-Logger" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Logger.html" title="struct actix_web::middleware::Logger">Logger</a></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#765">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#768">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Instrument-for-T" class="impl"><a href="#impl-Instrument-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; Instrument for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.instrument" class="method trait-impl"><a href="#method.instrument" class="anchor">§</a><h4 class="code-header">fn <a class="fn">instrument</a>(self, span: Span) -&gt; Instrumented&lt;Self&gt;</h4></section></summary><div class='docblock'>Instruments this type with the provided [<code>Span</code>], returning an
<code>Instrumented</code> wrapper. <a>Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.in_current_span" class="method trait-impl"><a href="#method.in_current_span" class="anchor">§</a><h4 class="code-header">fn <a class="fn">in_current_span</a>(self) -&gt; Instrumented&lt;Self&gt;</h4></section></summary><div class='docblock'>Instruments this type with the <a href="super::Span::current()">current</a> <a href="crate::Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <a>Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#748-750">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#758">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Same-for-T" class="impl"><a class="src rightside" href="https://docs.rs/typenum/1.17.0/src/typenum/type_operators.rs.html#34">source</a><a href="#impl-Same-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://docs.rs/typenum/1.17.0/typenum/type_operators/trait.Same.html" title="trait typenum::type_operators::Same">Same</a> for T</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output" class="associatedtype trait-impl"><a href="#associatedtype.Output" class="anchor">§</a><h4 class="code-header">type <a href="https://docs.rs/typenum/1.17.0/typenum/type_operators/trait.Same.html#associatedtype.Output" class="associatedtype">Output</a> = T</h4></section></summary><div class='docblock'>Should always be <code>Self</code></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#805-807">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-2" class="associatedtype trait-impl"><a href="#associatedtype.Error-2" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#812">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#790-792">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#797">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-VZip%3CV%3E-for-T" class="impl"><a href="#impl-VZip%3CV%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;V, T&gt; VZip&lt;V&gt; for T<div class="where">where
V: MultiLane&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><section id="method.vzip" class="method trait-impl"><a href="#method.vzip" class="anchor">§</a><h4 class="code-header">fn <a class="fn">vzip</a>(self) -&gt; V</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-WithSubscriber-for-T" class="impl"><a href="#impl-WithSubscriber-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; WithSubscriber for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.with_subscriber" class="method trait-impl"><a href="#method.with_subscriber" class="anchor">§</a><h4 class="code-header">fn <a class="fn">with_subscriber</a>&lt;S&gt;(self, subscriber: S) -&gt; WithDispatch&lt;Self&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;Dispatch&gt;,</div></h4></section></summary><div class='docblock'>Attaches the provided <a href="super::Subscriber"><code>Subscriber</code></a> to this type, returning a
[<code>WithDispatch</code>] wrapper. <a>Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.with_current_subscriber" class="method trait-impl"><a href="#method.with_current_subscriber" class="anchor">§</a><h4 class="code-header">fn <a class="fn">with_current_subscriber</a>(self) -&gt; WithDispatch&lt;Self&gt;</h4></section></summary><div class='docblock'>Attaches the current <a href="crate::dispatcher#setting-the-default-subscriber">default</a> <a href="super::Subscriber"><code>Subscriber</code></a> to this type, returning a
[<code>WithDispatch</code>] wrapper. <a>Read more</a></div></details></div></details></div></section></div></main></body></html>