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Starlet - a simple, high-performance PSGI/Plack HTTP server - metacpan.org
<!DOCTYPE html> <html lang="en-US"> <head> <title>Starlet - a simple, high-performance PSGI/Plack HTTP server - metacpan.org</title> <link rel="preload" as="fetch" href="/account/login_status" crossorigin="anonymous" /> <link href="/assets/style-XFEQ536G.css" rel="stylesheet" type="text/css"> <script src="/assets/main-WXBSEDQJ.js" type="module"></script> <link rel="alternate" type="application/rss+xml" title="Recent CPAN Uploads of Starlet - MetaCPAN" href="/dist/Starlet/releases.rss" /> <link rel="canonical" href="https://metacpan.org/pod/Starlet" /> <meta name="description" content="a simple, high-performance PSGI/Plack HTTP server" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=5"> <link rel="shortcut icon" href="/static/icons/favicon.ico"> <link rel="apple-touch-icon" sizes="152x152" href="/static/icons/apple-touch-icon.png"> <link rel="search" href="/static/opensearch.xml" type="application/opensearchdescription+xml" title="MetaCPAN"> <script 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href="/dist/Starlet">Starlet</a> </li> <li> Module version: 0.31 </li> <li> <a data-keyboard-shortcut="g s" href="/dist/Starlet/source/lib/Starlet.pm">Source</a> (<a href="/dist/Starlet/source/lib/Starlet.pm?raw=1">raw</a>) </li> <li> <a data-keyboard-shortcut="g b" href="/dist/Starlet/source/lib">Browse</a> (<a href="/dist/Starlet/source/lib?raw=1">raw</a>) </li> <li> <a data-keyboard-shortcut="g c" href="/dist/Starlet/changes">Changes</a> </li> <li> <a class="nopopup" href="/dist/Starlet/contribute">How to Contribute</a> </li> <li> <a rel="noopener nofollow" data-keyboard-shortcut="g i" href="https://rt.cpan.org/Public/Dist/Display.html?Name=Starlet">Issues</a> (12) </li> <li> <a rel="noopener nofollow" href="http://matrix.cpantesters.org/?dist=Starlet+0.31" title="Matrix">Testers</a> <span title="(pass / fail / na)">(<a rel="noopener nofollow" href="https://www.cpantesters.org/distro/S/Starlet.html?oncpan=1&distmat=1&version=0.31&grade=2" style="color: #090">894</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/S/Starlet.html?oncpan=1&distmat=1&version=0.31&grade=3" style="color: #900">71</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/S/Starlet.html?oncpan=1&distmat=1&version=0.31&grade=4">0</a>)</span> </li> <li> <a rel="noopener nofollow" href="http://cpants.cpanauthors.org/release/KAZUHO/Starlet-0.31">Kwalitee</a> </li> <li> <div class="ttip" data-toggle="tooltip" data-placement="bottom" title="The # people with an indexing permission on Starlet who have released something to CPAN in the last 2 years (i.e. the # people likely able to release critical fixes in a timely manner)"> Bus factor: 1 </div> </li> <li> <a rel="noopener nofollow" href="http://cpancover.com/latest/Starlet-0.31/index.html">77.82% Coverage </a> </li> <li> License: perl_5 </li> <li> Perl: v5.8.1 </li> <li class="nav-header">Activity</li> <li> <div class="activity-graph"> <img src="/dist/Starlet/activity.svg?res=month" /> <div class="comment">24 month</div> </div> </li> <li class="nav-header">Tools</li> <li> <a itemprop="downloadUrl" href="https://cpan.metacpan.org/authors/id/K/KA/KAZUHO/Starlet-0.31.tar.gz"> Download (<span itemprop="fileSize">108.74KB</span>)</a> </li> <li> <a href="https://explorer.metacpan.org/?url=%2Fmodule%2FKAZUHO%2FStarlet-0.31%2Flib%2FStarlet.pm"> MetaCPAN Explorer </a> </li> <li> <a href="/dist/Starlet/permissions"> Permissions </a> </li> <li> <a href="/dist/Starlet/releases.rss"> Subscribe to distribution </a> </li> <li> <button class="btn btn-link" data-toggle="modal" data-target="#metacpan_install-instructions-dialog"> Install Instructions </button> </li> <li> <form action="/search"> <input type="hidden" name="q" value="dist:Starlet"> <input type="search" name="q" placeholder="Search distribution" class="form-control tool-bar-form"> <input type="submit" style="display: none"> </form> </li> <li> <form action="https://grep.metacpan.org/search"> <input type="hidden" name="qd" value="Starlet"> <input type="hidden" name="source" value="metacpan"> <input type="search" name="q" placeholder="grep distribution" class="form-control tool-bar-form"> <input type="submit" style="display: none"> </form> </li> <li class="version-jump"> <select class="select-navigator form-control tool-bar-form"> <option disabled selected>Jump to version</option> <option disabled value="/release/KAZUHO/Starlet-0.31/view/lib/Starlet.pm" >0.31 (KAZUHO on 2016-12-12)</option> <option value="/release/KAZUHO/Starlet-0.30/view/lib/Starlet.pm" >0.30 (KAZUHO on 2016-06-10)</option> <option value="/release/KAZUHO/Starlet-0.29/view/lib/Starlet.pm" >0.29 (KAZUHO on 2016-02-23)</option> <option value="/release/KAZUHO/Starlet-0.28/view/lib/Starlet.pm" >0.28 (KAZUHO on 2015-11-05)</option> <option value="/release/KAZUHO/Starlet-0.27_01/view/lib/Starlet.pm" >0.27_01 DEV (KAZUHO on 2015-10-29)</option> <option value="/release/KAZUHO/Starlet-0.26/view/lib/Starlet.pm" >0.26 (KAZUHO on 2015-10-13)</option> <option value="/release/KAZUHO/Starlet-0.25/view/lib/Starlet.pm" >0.25 (KAZUHO on 2015-06-29)</option> <option value="/release/KAZUHO/Starlet-0.24/view/lib/Starlet.pm" >0.24 (KAZUHO on 2014-05-26)</option> <option value="/release/KAZUHO/Starlet-0.23/view/lib/Starlet.pm" >0.23 (KAZUHO on 2014-04-22)</option> <option value="/release/KAZUHO/Starlet-0.22/view/lib/Starlet.pm" >0.22 (KAZUHO on 2014-04-11)</option> <option value="/release/KAZUHO/Starlet-0.21/view/lib/Starlet.pm" >0.21 (KAZUHO on 2013-11-25)</option> <option value="/release/KAZUHO/Starlet-0.20/view/lib/Starlet.pm" >0.20 (KAZUHO on 2013-08-23)</option> <option value="/release/KAZUHO/Starlet-0.19/view/lib/Starlet.pm" >0.19 (KAZUHO on 2013-06-13)</option> <option value="/release/KAZUHO/Starlet-0.18/view/lib/Starlet.pm" >0.18 (KAZUHO on 2013-03-18)</option> <option value="/release/KAZUHO/Starlet-0.17_01/view/lib/Starlet.pm" >0.17_01 DEV (KAZUHO on 2013-03-08)</option> <option value="/release/KAZUHO/Starlet-0.16/view/lib/Starlet.pm" >0.16 (KAZUHO on 2012-09-12)</option> <option value="/release/KAZUHO/Starlet-0.15/view/lib/Starlet.pm" >0.15 (KAZUHO on 2012-08-07)</option> <option value="/release/KAZUHO/Starlet-0.14/view/lib/Starlet.pm" >0.14 (KAZUHO on 2011-10-31)</option> <option value="/release/KAZUHO/Starlet-0.13/view/lib/Starlet.pm" >0.13 (KAZUHO on 2010-11-30)</option> <option value="/release/KAZUHO/Starlet-0.12/view/lib/Starlet.pm" >0.12 (KAZUHO on 2010-11-29)</option> <option value="/release/KAZUHO/Starlet-0.11/view/lib/Starlet.pm" >0.11 (KAZUHO on 2010-10-26)</option> <option value="/release/KAZUHO/Starlet-0.10/view/lib/Starlet.pm" >0.10 (KAZUHO on 2010-08-17)</option> <option value="/release/KAZUHO/Starlet-0.09/view/lib/Starlet.pm" >0.09 (KAZUHO on 2010-08-04)</option> <option value="/release/KAZUHO/Starlet-0.08/view/lib/Starlet.pm" >0.08 (KAZUHO on 2010-03-28)</option> <option value="/release/KAZUHO/Starlet-0.07/view/lib/Starlet.pm" >0.07 (KAZUHO on 2010-03-26)</option> <option value="/release/KAZUHO/Starlet-0.06/view/lib/Starlet.pm" >0.06 (KAZUHO on 2010-03-26)</option> <option value="/release/KAZUHO/Starlet-0.05/view/lib/Starlet.pm" >0.05 (KAZUHO on 2010-03-26)</option> </select> </li> <li class="version-diff"> <select class="select-navigator form-control tool-bar-form"> <option disabled selected>Diff with version</option> <option disabled value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.31/lib/Starlet.pm" >0.31 (KAZUHO on 2016-12-12)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.30/lib/Starlet.pm" >0.30 (KAZUHO on 2016-06-10)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.29/lib/Starlet.pm" >0.29 (KAZUHO on 2016-02-23)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.28/lib/Starlet.pm" >0.28 (KAZUHO on 2015-11-05)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.27_01/lib/Starlet.pm" >0.27_01 DEV (KAZUHO on 2015-10-29)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.26/lib/Starlet.pm" >0.26 (KAZUHO on 2015-10-13)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.25/lib/Starlet.pm" >0.25 (KAZUHO on 2015-06-29)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.24/lib/Starlet.pm" >0.24 (KAZUHO on 2014-05-26)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.23/lib/Starlet.pm" >0.23 (KAZUHO on 2014-04-22)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.22/lib/Starlet.pm" >0.22 (KAZUHO on 2014-04-11)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.21/lib/Starlet.pm" >0.21 (KAZUHO on 2013-11-25)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.20/lib/Starlet.pm" >0.20 (KAZUHO on 2013-08-23)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.19/lib/Starlet.pm" >0.19 (KAZUHO on 2013-06-13)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.18/lib/Starlet.pm" >0.18 (KAZUHO on 2013-03-18)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.17_01/lib/Starlet.pm" >0.17_01 DEV (KAZUHO on 2013-03-08)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.16/lib/Starlet.pm" >0.16 (KAZUHO on 2012-09-12)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.15/lib/Starlet.pm" >0.15 (KAZUHO on 2012-08-07)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.14/lib/Starlet.pm" >0.14 (KAZUHO on 2011-10-31)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.13/lib/Starlet.pm" >0.13 (KAZUHO on 2010-11-30)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.12/lib/Starlet.pm" >0.12 (KAZUHO on 2010-11-29)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.11/lib/Starlet.pm" >0.11 (KAZUHO on 2010-10-26)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.10/lib/Starlet.pm" >0.10 (KAZUHO on 2010-08-17)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.09/lib/Starlet.pm" >0.09 (KAZUHO on 2010-08-04)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.08/lib/Starlet.pm" >0.08 (KAZUHO on 2010-03-28)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.07/lib/Starlet.pm" >0.07 (KAZUHO on 2010-03-26)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.06/lib/Starlet.pm" >0.06 (KAZUHO on 2010-03-26)</option> <option value="/release/KAZUHO/Starlet-0.31/diff/KAZUHO/Starlet-0.05/lib/Starlet.pm" >0.05 (KAZUHO on 2010-03-26)</option> </select> </li> <li> <ul class="dependencies"> <li class="nav-header">Dependencies</li> <li><a href="/pod/Parallel::Prefork" title="Parallel::Prefork" class="ellipsis">Parallel::Prefork</a></li> <li><a href="/pod/Plack" title="Plack" class="ellipsis">Plack</a></li> <li><a href="/pod/Server::Starter" title="Server::Starter" class="ellipsis">Server::Starter</a></li> <li><i class="ttip" title="dynamic_config enabled">and possibly others</i></li> <li> <hr> </li> <li> <a href="/module/Starlet/requires">Reverse dependencies</a> </li> <li> <a href="http://deps.cpantesters.org/?module=Starlet">CPAN Testers List</a> </li> <li> <a href="https://cpandeps.grinnz.com/?dist=Starlet">Dependency graph</a> </li> </ul> </li> <li class="nav-header">Permalinks</li> <li> <a href="/release/KAZUHO/Starlet-0.31/view/lib/Starlet.pm">This version</a> </li> <li> <a href="/pod/Starlet">Latest version</a> </li> <li> <div class="plussers"> <div class="nav-header">++ed by:</div> <div> <a class="display-all" href="/author/MELO"><img src="https://www.gravatar.com/avatar/4809188f41ad2613f4c240b72d97604c?d=identicon&s=20" title="MELO" alt="MELO"></a> <a class="display-all" href="/author/KEEDI"><img src="https://www.gravatar.com/avatar/95f905a7a4ccc573c711e9d264c0fde8?d=identicon&s=20" title="KEEDI" alt="KEEDI"></a> <a class="display-all" href="/author/ILUX"><img src="https://www.gravatar.com/avatar/1cd0eea5e6ca13346060bb9d2c1e286b?d=identicon&s=20" title="ILUX" alt="ILUX"></a> <a class="display-all" href="/author/LIMITUSUS"><img src="https://www.gravatar.com/avatar/8637a2cbd83a422807d573cbe369c519?d=identicon&s=20" title="LIMITUSUS" alt="LIMITUSUS"></a> <a class="display-all" href="/author/YUUKI"><img src="https://www.gravatar.com/avatar/4c7dbdb398e26e0ef81e2c9b6b472742?d=identicon&s=20" title="YUUKI" alt="YUUKI"></a> </div> <!-- Display counts of plussers--> <div> <a href="/dist/Starlet/plussers">11 PAUSE users</a> </div> <div> 7 non-PAUSE users </div> </div> </li> <li> <div> <button class="contributors-show-button btn-link">and 1 contributors</button> <div id="metacpan_contributors" class="slide-out slide-out-hidden"> <div> <ul> <li class="contributor" > Kazuho Oku </li> </ul> </div> </div> </div> </li> </ul> </div> </nav> <div class="content-navigation"> <div class="breadcrumbs"> <span> <a data-keyboard-shortcut="g a" rel="author" href="/author/KAZUHO" class="author-name">Kazuho Oku</a> </span> <span> / </span> <div class="release dist-release status-latest maturity-released"> <span class="dropdown"><b class="caret"></b></span> <select class="select-navigator "> <option selected value="/release/KAZUHO/Starlet-0.31/view/lib/Starlet.pm" >0.31 (KAZUHO on 2016-12-12)</option> <option value="/release/KAZUHO/Starlet-0.30/view/lib/Starlet.pm" >0.30 (KAZUHO on 2016-06-10)</option> <option value="/release/KAZUHO/Starlet-0.29/view/lib/Starlet.pm" >0.29 (KAZUHO on 2016-02-23)</option> <option value="/release/KAZUHO/Starlet-0.28/view/lib/Starlet.pm" >0.28 (KAZUHO on 2015-11-05)</option> <option value="/release/KAZUHO/Starlet-0.27_01/view/lib/Starlet.pm" >0.27_01 DEV (KAZUHO on 2015-10-29)</option> <option value="/release/KAZUHO/Starlet-0.26/view/lib/Starlet.pm" >0.26 (KAZUHO on 2015-10-13)</option> <option value="/release/KAZUHO/Starlet-0.25/view/lib/Starlet.pm" >0.25 (KAZUHO on 2015-06-29)</option> <option value="/release/KAZUHO/Starlet-0.24/view/lib/Starlet.pm" >0.24 (KAZUHO on 2014-05-26)</option> <option value="/release/KAZUHO/Starlet-0.23/view/lib/Starlet.pm" >0.23 (KAZUHO on 2014-04-22)</option> <option value="/release/KAZUHO/Starlet-0.22/view/lib/Starlet.pm" >0.22 (KAZUHO on 2014-04-11)</option> <option value="/release/KAZUHO/Starlet-0.21/view/lib/Starlet.pm" >0.21 (KAZUHO on 2013-11-25)</option> <option value="/release/KAZUHO/Starlet-0.20/view/lib/Starlet.pm" >0.20 (KAZUHO on 2013-08-23)</option> <option value="/release/KAZUHO/Starlet-0.19/view/lib/Starlet.pm" >0.19 (KAZUHO on 2013-06-13)</option> <option value="/release/KAZUHO/Starlet-0.18/view/lib/Starlet.pm" >0.18 (KAZUHO on 2013-03-18)</option> <option value="/release/KAZUHO/Starlet-0.17_01/view/lib/Starlet.pm" >0.17_01 DEV (KAZUHO on 2013-03-08)</option> <option value="/release/KAZUHO/Starlet-0.16/view/lib/Starlet.pm" >0.16 (KAZUHO on 2012-09-12)</option> <option value="/release/KAZUHO/Starlet-0.15/view/lib/Starlet.pm" >0.15 (KAZUHO on 2012-08-07)</option> <option value="/release/KAZUHO/Starlet-0.14/view/lib/Starlet.pm" >0.14 (KAZUHO on 2011-10-31)</option> <option value="/release/KAZUHO/Starlet-0.13/view/lib/Starlet.pm" >0.13 (KAZUHO on 2010-11-30)</option> <option value="/release/KAZUHO/Starlet-0.12/view/lib/Starlet.pm" >0.12 (KAZUHO on 2010-11-29)</option> <option value="/release/KAZUHO/Starlet-0.11/view/lib/Starlet.pm" >0.11 (KAZUHO on 2010-10-26)</option> <option value="/release/KAZUHO/Starlet-0.10/view/lib/Starlet.pm" >0.10 (KAZUHO on 2010-08-17)</option> <option value="/release/KAZUHO/Starlet-0.09/view/lib/Starlet.pm" >0.09 (KAZUHO on 2010-08-04)</option> <option value="/release/KAZUHO/Starlet-0.08/view/lib/Starlet.pm" >0.08 (KAZUHO on 2010-03-28)</option> <option value="/release/KAZUHO/Starlet-0.07/view/lib/Starlet.pm" >0.07 (KAZUHO on 2010-03-26)</option> <option value="/release/KAZUHO/Starlet-0.06/view/lib/Starlet.pm" >0.06 (KAZUHO on 2010-03-26)</option> <option value="/release/KAZUHO/Starlet-0.05/view/lib/Starlet.pm" >0.05 (KAZUHO on 2010-03-26)</option> </select> <a data-keyboard-shortcut="g d" class="release-name" href="/dist/Starlet">Starlet-0.31</a> </div> <span class="river-gauge-gauge"> <svg width="24px" height="15px" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g> <title> River stage two • 9 direct dependents • 13 total dependents </title> <rect x="0" y="0" width="4" height="15" fill="#7ea3f2" /> <rect x="5" y="0" width="4" height="15" fill="#7ea3f2" /> <rect x="10" y="0" width="4" height="15" fill="#e4e2e2" /> <rect x="15" y="0" width="4" height="15" fill="#e4e2e2" /> <rect x="20" y="0" width="4" height="15" fill="#e4e2e2" /> </g> </svg> </span> <div id="Starlet-fav" class="show-logged-in"> <form action="/account/favorite/add" style="display: inline" method="POST"> <input type="hidden" name="remove" value="0"> <input type="hidden" name="release" value="Starlet-0.31"> <input type="hidden" name="author" value="KAZUHO"> <input type="hidden" name="distribution" value="Starlet"> <button type="submit" class="favorite highlight"><span>18</span> ++</button> </form> </div> <div class="show-logged-out"> <button class="fav-not-logged-in favorite highlight"><span>18</span> ++</button> </div> / <span>Starlet</span> </div> </div> <main class="content"> <nav class="toc"> <div class="toc-header"><strong>Contents</strong></div> <ul> <li><a href="#NAME">NAME</a></li> <li><a href="#SYNOPSIS">SYNOPSIS</a></li> <li><a href="#DESCRIPTION">DESCRIPTION</a></li> <li><a href="#COMMAND-LINE-OPTIONS">COMMAND LINE OPTIONS</a> <ul> <li><a href="#-max-workers%3D%23">--max-workers=#</a></li> <li><a href="#-timeout%3D%23">--timeout=#</a></li> <li><a href="#-keepalive-timeout%3D%23">--keepalive-timeout=#</a></li> <li><a href="#-max-keepalive-reqs%3D%23">--max-keepalive-reqs=#</a></li> <li><a href="#-max-reqs-per-child%3D%23">--max-reqs-per-child=#</a></li> <li><a href="#-min-reqs-per-child%3D%23">--min-reqs-per-child=#</a></li> <li><a href="#-spawn-interval%3D%23">--spawn-interval=#</a></li> <li><a href="#-child-exit%3Ds">--child-exit=s</a></li> </ul> </li> <li><a href="#Extensions-to-PSGI">Extensions to PSGI</a> <ul> <li><a href="#psgix.informational">psgix.informational</a></li> </ul> </li> <li><a href="#NOTES">NOTES</a></li> <li><a href="#SEE-ALSO">SEE ALSO</a></li> <li><a href="#AUTHOR">AUTHOR</a></li> <li><a href="#LICENSE">LICENSE</a></li> </ul></nav> <div class="pod anchors"> <h1 id="NAME">NAME</h1> <p>Starlet - a simple, high-performance PSGI/Plack HTTP server</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code>% start_server --port=80 -- plackup -s Starlet [options] your-app.psgi or if you do not need hot deploy, % plackup -s Starlet --port=80 [options] your-app.psgi</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>Starlet is a standalone HTTP/1.1 web server, formerly known as <a href="/pod/Plack::Server::Standalone::Prefork">Plack::Server::Standalone::Prefork</a> and <a href="/pod/Plack::Server::Standalone::Prefork::Server::Starter">Plack::Server::Standalone::Prefork::Server::Starter</a>.</p> <p>The server supports following features, and is suitable for running HTTP application servers behind a reverse proxy.</p> <p>- prefork and graceful shutdown using <a href="/pod/Parallel::Prefork">Parallel::Prefork</a></p> <p>- hot deploy using <a href="/pod/Server::Starter">Server::Starter</a></p> <p>- fast HTTP processing using <a href="/pod/HTTP::Parser::XS">HTTP::Parser::XS</a> (optional)</p> <h1 id="COMMAND-LINE-OPTIONS"><a id="COMMAND"></a>COMMAND LINE OPTIONS</h1> <p>In addition to the options supported by <a href="/pod/plackup">plackup</a>, Starlet accepts following options(s).</p> <h2 id="-max-workers=#"><a id="max-workers"></a>--max-workers=#</h2> <p>number of worker processes (default: 10)</p> <h2 id="-timeout=#"><a id="timeout"></a>--timeout=#</h2> <p>seconds until timeout (default: 300)</p> <h2 id="-keepalive-timeout=#"><a id="keepalive-timeout"></a>--keepalive-timeout=#</h2> <p>timeout for persistent connections (default: 2)</p> <h2 id="-max-keepalive-reqs=#"><a id="max-keepalive-reqs"></a>--max-keepalive-reqs=#</h2> <p>max. number of requests allowed per single persistent connection. If set to one, persistent connections are disabled (default: 1)</p> <h2 id="-max-reqs-per-child=#"><a id="max-reqs-per-child"></a>--max-reqs-per-child=#</h2> <p>max. number of requests to be handled before a worker process exits (default: 100)</p> <h2 id="-min-reqs-per-child=#"><a id="min-reqs-per-child"></a>--min-reqs-per-child=#</h2> <p>if set, randomizes the number of requests handled by a single worker process between the value and that supplied by <code>--max-reqs-per-chlid</code> (default: none)</p> <h2 id="-spawn-interval=#"><a id="spawn-interval"></a>--spawn-interval=#</h2> <p>if set, worker processes will not be spawned more than once than every given seconds. Also, when SIGHUP is being received, no more than one worker processes will be collected every given seconds. This feature is useful for doing a "slow-restart". See http://blog.kazuhooku.com/2011/04/web-serverstarter-parallelprefork.html for more information. (default: none)</p> <h2 id="-child-exit=s"><a id="child-exit-s"></a>--child-exit=s</h2> <p>the subroutine code to be executed right before a child process exits. e.g. <code>--child-exit='sub { POSIX::_exit(0) }'</code>. (default: none)</p> <h1 id="Extensions-to-PSGI"><a id="Extensions"></a>Extensions to PSGI</h1> <h2 id="psgix.informational"><a id="psgix"></a>psgix.informational</h2> <p>Starlets exposes a callback named <code>psgix.informational</code> that can be used for sending an informational response. The callback accepts two arguments, the first argument being the status code and the second being an arrayref of the headers to be sent. Example below sends an 103 response before processing the request to build a final response.</p> <pre><code>sub { my $env = shift; $env["psgix.informational"}->(103, [ 'link' => '</style.css>; rel=preload' ]); my $resp = ... application logic ... $resp; }</code></pre> <h1 id="NOTES">NOTES</h1> <p><a href="/pod/Starlet">Starlet</a> is designed and implemented to be simple, secure and fast, especially for running as an HTTP application server running behind a reverse proxy. It only depends on a minimal number of well-designed (and well-focused) modules.</p> <h1 id="SEE-ALSO"><a id="SEE"></a>SEE ALSO</h1> <p><a href="/pod/Parallel::Prefork">Parallel::Prefork</a> <a href="/pod/Starman">Starman</a> <a href="/pod/Server::Starter">Server::Starter</a></p> <h1 id="AUTHOR">AUTHOR</h1> <p>Kazuho Oku</p> <p>miyagawa</p> <p>kazeburo</p> <p>Tomohiro Takezawa</p> <h1 id="LICENSE">LICENSE</h1> <p>This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.</p> <p>See <a href="http://www.perl.com/perl/misc/Artistic.html">http://www.perl.com/perl/misc/Artistic.html</a></p></div> <div id="metacpan_install-instructions-dialog" class="modal fade"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button> <h4 class="modal-title">Module Install Instructions</h4> </div> <div class="modal-body"> <p>To install Starlet, 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