<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `Query` struct in crate `actix_web`."><metaname="keywords"content="rust, rustlang, rust-lang, Query"><title>actix_web::Query - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptsrc="../storage.js"></script></head><bodyclass="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><pclass='location'>Struct Query</p><divclass="sidebar-elems"><divclass="block items"><aclass="sidebar-title"href="#methods">Methods</a><divclass="sidebar-links"><ahref="#method.into_inner">into_inner</a></div><aclass="sidebar-title"href="#implementations">Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-PartialEq">PartialEq</a><ahref="#impl-Eq">Eq</a><ahref="#impl-PartialOrd">PartialOrd</a><ahref="#impl-Ord">Ord</a><ahref="#impl-Deref">Deref</a><ahref="#impl-DerefMut">DerefMut</a><ahref="#impl-FromRequest%3CS%3E">FromRequest<S></a><ahref="#impl-Debug">Debug</a><ahref="#impl-Display">Display</a></div><aclass="sidebar-title"href="#synthetic-implementations">Auto Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-Send">Send</a><ahref="#impl-Sync">Sync</a></div></div><pclass='location'><ahref='index.html'>actix_web</a></p><script>window.sidebarCurrent={name:'Query',ty:'struct',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../theme.js"></script><navclass="sub"><formclass="search-form js-only"><divclass="search-container"><inputclass="search-input"name="search"autocomplete="off"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"><aid="settings-menu"href="../settings.html"><imgsrc="../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='in-band'>Struct <ahref='index.html'>actix_web</a>::<wbr><aclass="struct"href=''>Query</a></span><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../src/actix_web/extractor.rs.html#170'title='goto source code'>[src]</a></span></h1><divclass="docblock type-decl"><preclass='rust struct'>pub struct Query<T>(_);</pre></div><divclass='docblock'><p>Extract typed information from from the request's query.</p>
<spanclass="macro">format</span><spanclass="macro">!</span>(<spanclass="string">"Authorization request for client with id={} and type={:?}!"</span>, <spanclass="ident">info</span>.<spanclass="ident">id</span>, <spanclass="ident">info</span>.<spanclass="ident">response_type</span>)
<divid='implementations-list'><h3id='impl-PartialEq'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html"title="trait core::cmp::PartialEq">PartialEq</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html"title="trait core::cmp::PartialEq">PartialEq</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T></code><ahref='#impl-PartialEq'class='anchor'></a></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><divclass='impl-items'><h4id='method.eq'class="method"><spanid='eq.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq'class='fnname'>eq</a>(&self, other: &<aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
</div></div><h3id='impl-Eq'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html"title="trait core::cmp::Eq">Eq</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html"title="trait core::cmp::Eq">Eq</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T></code><ahref='#impl-Eq'class='anchor'></a></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><divclass='impl-items'></div><h3id='impl-PartialOrd'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html"title="trait core::cmp::PartialOrd">PartialOrd</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html"title="trait core::cmp::PartialOrd">PartialOrd</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T></code><ahref='#impl-PartialOrd'class='anchor'></a></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><divclass='impl-items'><h4id='method.partial_cmp'class="method"><spanid='partial_cmp.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#tymethod.partial_cmp'class='fnname'>partial_cmp</a>(&self, other: &<aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><<aclass="enum"href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html"title="enum core::cmp::Ordering">Ordering</a>></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>This method returns an ordering between <code>self</code> and <code>other</code> values if one exists. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#tymethod.partial_cmp">Read more</a></p>
</div><h4id='method.lt'class="method"><spanid='lt.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.lt'class='fnname'>lt</a>(&self, other: &<aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>This method tests less than (for <code>self</code> and <code>other</code>) and is used by the <code><</code> operator. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.lt">Read more</a></p>
</div><h4id='method.le'class="method"><spanid='le.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.le'class='fnname'>le</a>(&self, other: &<aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>This method tests less than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code><=</code> operator. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.le">Read more</a></p>
</div><h4id='method.gt'class="method"><spanid='gt.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.gt'class='fnname'>gt</a>(&self, other: &<aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>This method tests greater than (for <code>self</code> and <code>other</code>) and is used by the <code>></code> operator. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.gt">Read more</a></p>
</div><h4id='method.ge'class="method"><spanid='ge.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.ge'class='fnname'>ge</a>(&self, other: &<aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>This method tests greater than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code>>=</code> operator. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialOrd.html#method.ge">Read more</a></p>
</div></div><h3id='impl-Ord'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html"title="trait core::cmp::Ord">Ord</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html"title="trait core::cmp::Ord">Ord</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T></code><ahref='#impl-Ord'class='anchor'></a></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><divclass='impl-items'><h4id='method.cmp'class="method"><spanid='cmp.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#tymethod.cmp'class='fnname'>cmp</a>(&self, other: &<aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T>) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/cmp/enum.Ordering.html"title="enum core::cmp::Ordering">Ordering</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#132'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>This method returns an <code>Ordering</code> between <code>self</code> and <code>other</code>. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#tymethod.cmp">Read more</a></p>
</div><h4id='method.max'class="method"><spanid='max.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.max'class='fnname'>max</a>(self, other: Self) -> Self</code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><divclass='since'title='Stable since Rust version 1.21.0'>1.21.0</div><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#472-475'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>Compares and returns the maximum of two values. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.max">Read more</a></p>
</div><h4id='method.min'class="method"><spanid='min.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.min'class='fnname'>min</a>(self, other: Self) -> Self</code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><divclass='since'title='Stable since Rust version 1.21.0'>1.21.0</div><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#488-491'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>Compares and returns the minimum of two values. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.Ord.html#method.min">Read more</a></p>
</div></div><h3id='impl-Deref'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html"title="trait core::ops::deref::Deref">Deref</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T></code><ahref='#impl-Deref'class='anchor'></a></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#172-178'title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><divclass='impl-items'><h4id='associatedtype.Target'class="type"><spanid='Target.t'class='invisible'><code>type <ahref='https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target'class="type">Target</a> = T</code></span></h4>
</div></div><h3id='impl-Debug'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T></code><ahref='#impl-Debug'class='anchor'></a></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#208-212'title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><divclass='impl-items'><h4id='method.fmt'class="method"><spanid='fmt.v'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt'class='fnname'>fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a>) -><aclass="type"href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html"title="type core::fmt::Result">Result</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#209-211'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3id='impl-Display'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html"title="trait core::fmt::Display">Display</a>><aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html"title="trait core::fmt::Display">Display</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T></code><ahref='#impl-Display'class='anchor'></a></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#214-218'title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><divclass='impl-items'><h4id='method.fmt-1'class="method"><spanid='fmt.v-1'class='invisible'><tableclass='table-display'><tbody><tr><td><code>fn <ahref='https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt'class='fnname'>fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a>) -><aclass="type"href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html"title="type core::fmt::Result">Result</a></code></span></td><td><spanclass='out-of-band'><divclass='ghost'></div><aclass='srclink'href='../src/actix_web/extractor.rs.html#215-217'title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><divclass='docblock'><p>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
Auto Trait Implementations<ahref='#synthetic-implementations'class='anchor'></a>
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<h3id='impl-Send'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T><spanclass="where fmt-newline">where<br> T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a>, </span></code><ahref='#impl-Send'class='anchor'></a></span></td><td><spanclass='out-of-band'></span></td></tr></tbody></table></h3><divclass='impl-items'></div><h3id='impl-Sync'class='impl'><spanclass='in-band'><tableclass='table-display'><tbody><tr><td><code>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> for <aclass="struct"href="../actix_web/struct.Query.html"title="struct actix_web::Query">Query</a><T><spanclass="where fmt-newline">where<br> T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a>, </span></code><ahref='#impl-Sync'class='anchor'></a></span></td><td><spanclass='out-of-band'></span></td></tr></tbody></table></h3><divclass='impl-items'></div></div></section><sectionid="search"class="content hidden"></section><sectionclass="footer"></section><asideid="help"class="hidden"><div><h1class="hidden">Help</h1><divclass="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><divclass="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath="../";window.currentCrate="actix_web";</script><scriptsrc="../aliases.js"></script><scriptsrc="../main.js"></script><scriptdefersrc="../search-index.js"></script></body></html>
