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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="An interface for types that can be converted into a `HeaderName` + `HeaderValue` pair for insertion into a `HeaderMap`."><title>TryIntoHeaderPair in actix_http::header - 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_http" 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 trait"><!--[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_http/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_http/index.html"><img src="https://actix.rs/img/logo.png" alt="logo"></a><h2><a href="../../actix_http/index.html">actix_http</a><span class="version">3.7.0</span></h2></div><h2 class="location"><a href="#">TryIntoHeaderPair</a></h2><div class="sidebar-elems"><section><h3><a href="#required-associated-types">Required Associated Types</a></h3><ul class="block"><li><a href="#associatedtype.Error">Error</a></li></ul><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.try_into_pair">try_into_pair</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-TryIntoHeaderPair-for-(%26HeaderName,+V)">(&HeaderName, V)</a></li><li><a href="#impl-TryIntoHeaderPair-for-(%26%5Bu8%5D,+V)">(&[u8], V)</a></li><li><a href="#impl-TryIntoHeaderPair-for-(%26str,+V)">(&str, V)</a></li><li><a href="#impl-TryIntoHeaderPair-for-(HeaderName,+V)">(HeaderName, V)</a></li><li><a href="#impl-TryIntoHeaderPair-for-(String,+V)">(String, V)</a></li></ul><h3><a href="#object-safety">Object Safety</a></h3><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In actix_http::header</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>Trait <a href="../index.html">actix_http</a>::<wbr><a href="index.html">header</a>::<wbr><a class="trait" href="#">TryIntoHeaderPair</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_http/header/into_pair.rs.html#12-16">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub trait TryIntoHeaderPair: <a class="trait" href="https://doc.rust-l
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type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="../error/struct.HttpError.html" title="struct actix_http::error::HttpError">HttpError</a>>;
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// Required method
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fn <a href="#tymethod.try_into_pair" class="fn">try_into_pair</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, <a class="struct" href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue">HeaderValue</a>), Self::<a class="associatedtype" href="trait.TryIntoHeaderPair.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderPair::Error">Error</a>>;
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>An interface for types that can be converted into a <a href="struct.HeaderName.html" title="struct actix_http::header::HeaderName"><code>HeaderName</code></a> + <a href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue"><code>HeaderValue</code></a> pair for
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insertion into a <a href="map/struct.HeaderMap.html" title="struct actix_http::header::map::HeaderMap"><code>HeaderMap</code></a>.</p>
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</div></details><h2 id="required-associated-types" class="section-header">Required Associated Types<a href="#required-associated-types" class="anchor">§</a></h2><div class="methods"><section id="associatedtype.Error" class="method"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#13">source</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="../error/struct.HttpError.html" title="struct actix_http::error::HttpError">HttpError</a>></h4></section></div><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><section id="tymethod.try_into_pair" class="method"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#15">source</a><h4 class="code-header">fn <a href="#tymethod.try_into_pair" class="fn">try_into_pair</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, <a class="struct" href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue">HeaderValue</a>), Self::<a class="associatedtype" href="trait.TryIntoHeaderPair.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderPair::Error">Error</a>></h4></section></div><h2 id="object-safety" class="section-header">Object Safety<a href="#object-safety" class="anchor">§</a></h2><div class="object-safety-info">This trait is <b>not</b> <a href="https://doc.rust-lang.org/nightly/reference/items/traits.html#object-safety">object safe</a>.</div><h2 id="foreign-impls" class="section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-TryIntoHeaderPair-for-(%26str,+V)" class="impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#82-97">source</a><a href="#impl-TryIntoHeaderPair-for-(%26str,+V)" class="anchor">§</a><h3 class="code-header">impl<V> <a class="trait" href="trait.TryIntoHeaderPair.html" title="trait actix_http::header::TryIntoHeaderPair">TryIntoHeaderPair</a> for (&<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, V)<div class="where">where
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V: <a class="trait" href="trait.TryIntoHeaderValue.html" title="trait actix_http::header::TryIntoHeaderValue">TryIntoHeaderValue</a>,
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V::<a class="associatedtype" href="trait.TryIntoHeaderValue.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderValue::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="struct.InvalidHeaderValue.html" title="struct actix_http::header::InvalidHeaderValue">InvalidHeaderValue</a>>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = InvalidHeaderPart</h4></section><section id="method.try_into_pair" class="method trait-impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#89-96">source</a><a href="#method.try_into_pair" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.try_into_pair" class="fn">try_into_pair</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, <a class="struct" href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue">HeaderValue</a>), Self::<a class="associatedtype" href="trait.TryIntoHeaderPair.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderPair::Error">Error</a>></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryIntoHeaderPair-for-(%26HeaderName,+V)" class="impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#49-63">source</a><a href="#impl-TryIntoHeaderPair-for-(%26HeaderName,+V)" class="anchor">§</a><h3 class="code-header">impl<V> <a class="trait" href="trait.TryIntoHeaderPair.html" title="trait actix_http::header::TryIntoHeaderPair">TryIntoHeaderPair</a> for (&<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, V)<div class="where">where
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V: <a class="trait" href="trait.TryIntoHeaderValue.html" title="trait actix_http::header::TryIntoHeaderValue">TryIntoHeaderValue</a>,
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V::<a class="associatedtype" href="trait.TryIntoHeaderValue.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderValue::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="struct.InvalidHeaderValue.html" title="struct actix_http::header::InvalidHeaderValue">InvalidHeaderValue</a>>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-2" class="associatedtype trait-impl"><a href="#associatedtype.Error-2" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = InvalidHeaderPart</h4></section><section id="method.try_into_pair-1" class="method trait-impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#56-62">source</a><a href="#method.try_into_pair-1" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.try_into_pair" class="fn">try_into_pair</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, <a class="struct" href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue">HeaderValue</a>), Self::<a class="associatedtype" href="trait.TryIntoHeaderPair.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderPair::Error">Error</a>></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryIntoHeaderPair-for-(%26%5Bu8%5D,+V)" class="impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#65-80">source</a><a href="#impl-TryIntoHeaderPair-for-(%26%5Bu8%5D,+V)" class="anchor">§</a><h3 class="code-header">impl<V> <a class="trait" href="trait.TryIntoHeaderPair.html" title="trait actix_http::header::TryIntoHeaderPair">TryIntoHeaderPair</a> for (&[<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>], V)<div class="where">where
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V: <a class="trait" href="trait.TryIntoHeaderValue.html" title="trait actix_http::header::TryIntoHeaderValue">TryIntoHeaderValue</a>,
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V::<a class="associatedtype" href="trait.TryIntoHeaderValue.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderValue::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="struct.InvalidHeaderValue.html" title="struct actix_http::header::InvalidHeaderValue">InvalidHeaderValue</a>>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-3" class="associatedtype trait-impl"><a href="#associatedtype.Error-3" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = InvalidHeaderPart</h4></section><section id="method.try_into_pair-2" class="method trait-impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#72-79">source</a><a href="#method.try_into_pair-2" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.try_into_pair" class="fn">try_into_pair</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, <a class="struct" href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue">HeaderValue</a>), Self::<a class="associatedtype" href="trait.TryIntoHeaderPair.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderPair::Error">Error</a>></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryIntoHeaderPair-for-(String,+V)" class="impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#99-111">source</a><a href="#impl-TryIntoHeaderPair-for-(String,+V)" class="anchor">§</a><h3 class="code-header">impl<V> <a class="trait" href="trait.TryIntoHeaderPair.html" title="trait actix_http::header::TryIntoHeaderPair">TryIntoHeaderPair</a> for (<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>, V)<div class="where">where
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V: <a class="trait" href="trait.TryIntoHeaderValue.html" title="trait actix_http::header::TryIntoHeaderValue">TryIntoHeaderValue</a>,
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V::<a class="associatedtype" href="trait.TryIntoHeaderValue.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderValue::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="struct.InvalidHeaderValue.html" title="struct actix_http::header::InvalidHeaderValue">InvalidHeaderValue</a>>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-4" class="associatedtype trait-impl"><a href="#associatedtype.Error-4" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = InvalidHeaderPart</h4></section><section id="method.try_into_pair-3" class="method trait-impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#107-110">source</a><a href="#method.try_into_pair-3" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.try_into_pair" class="fn">try_into_pair</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, <a class="struct" href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue">HeaderValue</a>), Self::<a class="associatedtype" href="trait.TryIntoHeaderPair.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderPair::Error">Error</a>></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryIntoHeaderPair-for-(HeaderName,+V)" class="impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#33-47">source</a><a href="#impl-TryIntoHeaderPair-for-(HeaderName,+V)" class="anchor">§</a><h3 class="code-header">impl<V> <a class="trait" href="trait.TryIntoHeaderPair.html" title="trait actix_http::header::TryIntoHeaderPair">TryIntoHeaderPair</a> for (<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, V)<div class="where">where
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V: <a class="trait" href="trait.TryIntoHeaderValue.html" title="trait actix_http::header::TryIntoHeaderValue">TryIntoHeaderValue</a>,
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V::<a class="associatedtype" href="trait.TryIntoHeaderValue.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderValue::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="struct.InvalidHeaderValue.html" title="struct actix_http::header::InvalidHeaderValue">InvalidHeaderValue</a>>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-5" class="associatedtype trait-impl"><a href="#associatedtype.Error-5" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = InvalidHeaderPart</h4></section><section id="method.try_into_pair-4" class="method trait-impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#40-46">source</a><a href="#method.try_into_pair-4" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.try_into_pair" class="fn">try_into_pair</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(<a class="struct" href="struct.HeaderName.html" title="struct actix_http::header::HeaderName">HeaderName</a>, <a class="struct" href="struct.HeaderValue.html" title="struct actix_http::header::HeaderValue">HeaderValue</a>), Self::<a class="associatedtype" href="trait.TryIntoHeaderPair.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderPair::Error">Error</a>></h4></section></div></details><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><details class="toggle implementors-toggle"><summary><section id="impl-TryIntoHeaderPair-for-T" class="impl"><a class="src rightside" href="../../src/actix_http/header/into_pair.rs.html#113-120">source</a><a href="#impl-TryIntoHeaderPair-for-T" class="anchor">§</a><h3 class="code-header">impl<T: <a class="trait" href="trait.Header.html" title="trait actix_http::header::Header">Header</a>> <a class="trait" href="trait.TryIntoHeaderPair.html" title="trait actix_http::header::TryIntoHeaderPair">TryIntoHeaderPair</a> for T</h3></section></summary><div class="impl-items"><section id="associatedtype.Error-6" class="associatedtype trait-impl"><a href="#associatedtype.Error-6" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = <T as <a class="trait" href="trait.TryIntoHeaderValue.html" title="trait actix_http::header::TryIntoHeaderValue">TryIntoHeaderValue</a>>::<a class="associatedtype" href="trait.TryIntoHeaderValue.html#associatedtype.Error" title="type actix_http::header::TryIntoHeaderValue::Error">Error</a></h4></section></div></details></div><script src="../../trait.impl/actix_http/header/into_pair/trait.TryIntoHeaderPair.js" data-ignore-extern-crates="std" async></script></section></div></main></body></html>
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