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[Leanpub PDF/iPad/Kindle]</title><meta data-react-helmet="true" name="og:site_name" content="Leanpub"/><meta data-react-helmet="true" name="leanpub:page_name" content="book"/><meta data-react-helmet="true" name="title" content="Production Go"/><meta data-react-helmet="true" name="description" content="Production Go is the only book that teaches not only the basics of the Go language, but also how to develop and maintain production-ready Go applications. "/><meta data-react-helmet="true" name="author" content="Herman Schaaf"/><meta data-react-helmet="true" name="author" content="Shawn Smith"/><meta data-react-helmet="true" name="DCTERMS.title" content="Production Go"/><meta data-react-helmet="true" name="DCTERMS.description" content="Production Go is the only book that teaches not only the basics of the Go language, but also how to develop and maintain production-ready Go applications. "/><meta data-react-helmet="true" name="DCTERMS.type" content="book"/><meta data-react-helmet="true" name="DCTERMS.creator" content="Herman Schaaf"/><meta data-react-helmet="true" name="DCTERMS.creator" content="Shawn Smith"/><meta data-react-helmet="true" name="DCTERMS.publisher" content="Leanpub"/><meta data-react-helmet="true" name="DCTERMS.date" content="2013-08-22T13:41:31.000Z"/><meta data-react-helmet="true" name="DCTERMS.language" content="eng"/><meta data-react-helmet="true" property="og:title" content="Production Go"/><meta data-react-helmet="true" property="og:type" content="book"/><meta data-react-helmet="true" property="og:image" content="https://d2sofvawe08yqg.cloudfront.net/productiongo/s_hero2x?1620389943"/><meta data-react-helmet="true" property="og:url" content="http://leanpub.next/productiongo"/><meta data-react-helmet="true" property="og:publisher" content="Leanpub"/><meta data-react-helmet="true" property="og:description" content="Production Go is the only book that teaches not only the basics of the Go language, but also how to develop and maintain production-ready Go applications. "/><meta data-react-helmet="true" name="twitter:card" content="summary"/><meta data-react-helmet="true" name="twitter:site" content="@Leanpub"/><meta data-react-helmet="true" name="twitter:title" content="Production Go"/><meta data-react-helmet="true" name="twitter:description" content="Production Go is the only book that teaches not only the basics of the Go language, but also how to develop and maintain production-ready Go applications. "/><meta data-react-helmet="true" name="twitter:image" content="https://d2sofvawe08yqg.cloudfront.net/productiongo/s_featured?1620389943"/><meta data-react-helmet="true" name="twitter:url" content="http://leanpub.next/productiongo"/> </head> <body> <div id='react-root'><div class="app"><section class="Header"><nav class="Header__Nav"><a class="Header__Nav__Logo" href="/"><img 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alt="Leanpub"/></a><div class="Header__Middle"></div><button class="btn--plain DropdownContainer__Trigger "><div class="Header__Nav__Logo relative__nav__logo"><i class="HeaderIcon fa fa-bars"></i><i class="AccountItem__Trigger fa fa-caret-down"></i></div></button></nav></section><div id="scroll-wrapper" class="scroll-wrapper undefined false"><div class="main"><article class="book-show" lang="en"><div class="quick-buy-header"><div class="container--large"><div class="quick-buy-item-details"><div class="book-cover s_hero "><img src="https://d2sofvawe08yqg.cloudfront.net/productiongo/s_hero?1620389943" style="width:auto;height:auto"/></div><h6 class="quick-buy-title">Production Go</h6></div><div class="quick-buy-purchase-details"><div class="pricing"><div class="price--minimum"><div class="price__value"><span>Free!</span></div><div class="price__title"><span>Minimum price</span></div></div><span><div class="price--suggested"><div class="price__value"><span>$7.99</span></div><div class="price__title"><span>Suggested price</span></div></div><span class="tooltip--pricing"><button class="tooltip-item"><i class="fa fa-question-circle"></i></button></span></span></div><button class="btn--solid"><span>Add Ebook to Cart</span></button></div></div></div><span></span><section class="book-hero"><div class="container--medium--title"><h3 class="book-hero__title ltr">Production Go</h3><h6 class="book-hero__subtitle">Build modern, production-ready web services in Go</h6></div><div class="shelf-hero container--medium"><aside class="book-hero__summary ltr"><div class="book-hero__cover"><div class="book-cover s_hero "><img src="https://d2sofvawe08yqg.cloudfront.net/productiongo/s_hero?1620389943" style="width:auto;height:auto"/></div><div class="book-progress"><div class="progress-bar" title="[object Object]"><span class="progress-bar__meter" style="width:85%"></span></div><p class="percent-complete"><span>This book is 85% complete</span></p><p class="last-updated"><span>Last updated on 2022-06-24</span></p></div></div><div class="book-hero__author"><div><div class="avatars"><div class="avatar--tiny"><a href="https://leanpub.com/u/hermanschaaf"><img class="avatar__image" src="https://d39qdlcrvnra4b.cloudfront.net/avatars/182421/small/herman.png?1506027429" alt="Herman Schaaf"/></a></div><div class="avatar--tiny"><a href="https://leanpub.com/u/shawnps"><img class="avatar__image" src="https://d39qdlcrvnra4b.cloudfront.net/avatars/1155130/small/s.png?1505953941" alt="Shawn Smith"/></a></div></div><div class="names"><a class="link" href="https://leanpub.com/u/hermanschaaf">Herman Schaaf</a><span> and </span><a class="link" href="https://leanpub.com/u/shawnps">Shawn Smith</a></div></div></div><div class="book-hero__blurb"><p>Production Go is the book about creating and maintaining modern production applications written in Go. It assumes prior programming knowledge, and is recommended for professional programmers.</p></div></aside><aside class="book-hero__purchase"><div><div class="pricing"><div class="price--minimum"><div class="price__value"><span>Free!</span></div><div class="price__title"><span>Minimum price</span></div></div><span><div class="price--suggested"><div class="price__value"><span>$7.99</span></div><div class="price__title"><span>Suggested price</span></div></div><span class="tooltip--pricing"><button class="tooltip-item"><i class="fa fa-question-circle"></i></button></span></span></div><div class="cartable-form"><span></span><div class="cartable-form__actions"><div class="cartable-input"><div class="cartable-input__wrapper"><label><span>You Pay in US $</span></label><div class="cartable-form__action--with-hint"><input type="text" class="cartable-input__input"/><p class="hint"><span><strong>EU customers:</strong> Price excludes VAT.<br/> VAT is added during 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class="stats__list-item--leanpub-icon"><svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 347.827 237.519" style="enable-background:new 0 0 347.827 237.519;" xml:space="preserve"> <path class="st0" d="M321.584,21.423C309.91,14.855,279.145,0,239.679,0c-35.436,0-55.606,10.893-65.766,17.889 C163.754,10.893,143.584,0,108.148,0C68.682,0,37.917,14.855,26.242,21.423L0,237.519h0.783c14.836,0,29.441-3.421,42.86-9.752 c14.957-7.057,38.538-15.36,66.698-15.36c34.255,0,53.752,15.291,63.573,25.112c9.821-9.821,29.318-25.112,63.573-25.112 c28.16,0,51.741,8.303,66.698,15.36c13.418,6.331,28.023,9.752,42.86,9.752h0.783L321.584,21.423z M303.403,202.544 c-13.892-5.715-27.909-9.622-41.664-11.615c-8.081-1.17-16.241-1.764-24.253-1.764c-22.779,0-43.361,5.68-61.175,16.883 l-2.398,1.491l-2.385-1.484c-17.826-11.21-38.409-16.89-61.188-16.89c-8.012,0-16.171,0.594-24.251,1.764 c-13.755,1.992-27.774,5.9-41.666,11.615l-17.659,7.265L47.831,36.451l1.56-0.689c17.758-7.848,40.543-12.533,60.95-12.533 c25.278,0,46.649,8.049,63.573,23.936c16.924-15.886,38.294-23.936,63.572-23.936c20.407,0,43.192,4.686,60.95,12.533l1.56,0.689 l21.065,173.358L303.403,202.544z M241.984,181.205c-2.178-0.086-4.35-0.132-6.512-0.132c-22.871,0-43.604,5.647-61.626,16.777 c-18.031-11.133-38.759-16.777-61.626-16.777c-8.044,0-16.234,0.595-24.343,1.77c-13.807,1.999-27.86,5.915-41.768,11.636 l-7.933,3.263L56.999,42.849c16.281-6.903,36.783-11,55.222-11c23.941,0,43.983,7.904,59.569,23.491l2.057,2.057l2.056-2.057 c15.017-15.017,34.18-22.88,56.968-23.437L241.984,181.205z"/> </svg> </span><p class="stats__list-item__title">WEB</p></li></ul></div></div></section><span style="font-size:0"></span><section class="about-book"><div class="container--medium"><h1 class="section__title"><span>About the Book</span></h1><div class="about-book__content" dir="ltr" data-dir="ltr"><div class="about-book__copy"><p>With its focus on simplicity and getting things done, Go is a great language for developing performant, robust and maintainable applications. Production Go first teaches the basics of the Go language, then discusses how to bring an application from development to real users. The authors draw from years of experience running high-volume real-world Go applications to explain the tricks behind making—and keeping—Go applications performant, robust and maintainable.</p></div><div class="about-book__meta"><ul class="meta-list"><li class="meta-list__item"><h3 class="meta-list__item-title"><span>Share this book</span></h3><ul class="social-sharing"><li class="twitter"><span class="icon-link--twitter" aria-label="twitter" tabindex="0"></span></li><li class="facebook"><span class="icon-link--facebook" aria-label="facebook" tabindex="0"></span></li></ul></li><li class="meta-list__item"><h3 class="meta-list__item-title"><span>Categories</span></h3><ul class="meta-list__item categories"><li>Computers and Programming</li><li>Software</li><li>Go</li></ul></li><li class="meta-list__item"><h3 class="meta-list__item-title"><span>Feedback</span></h3><a class="btn--hollow --interactive" href="/productiongo/email_author/new"><span>Email the Author(s)</span></a></li></ul></div></div></div></section><section class="about-authors"><section class="lane--author"><div class="container--medium"><header class="lane__header--center"><h4><span>About the Authors</span></h4></header><div data-item-count="2" class="lane__contents--author lane__contents--center"><div><div class="lane-item--author"><a class="avatar-with-name--vertical link" href="/u/hermanschaaf"><div class="avatar--small"><img class="avatar__image" src="https://d39qdlcrvnra4b.cloudfront.net/avatars/182421/small/herman.png?1506027429" alt="Herman Schaaf"/></div><span class="avatar-with-name__name">Herman Schaaf</span></a><div class="profile-icons"><a class="icon-link--github" href="https://github.com/hermanschaaf"></a><a class="icon-link--twitter" href="https://twitter.com/ironzeb"></a></div><div class="lane-item__author_blurb text-left"><p>Herman Schaaf is a London-based software engineer writing production Go at Skyscanner.</p></div></div></div><div><div class="lane-item--author"><a class="avatar-with-name--vertical link" href="/u/shawnps"><div class="avatar--small"><img class="avatar__image" src="https://d39qdlcrvnra4b.cloudfront.net/avatars/1155130/small/s.png?1505953941" alt="Shawn Smith"/></div><span class="avatar-with-name__name">Shawn Smith</span></a><div class="profile-icons"><a class="icon-link--github" href="https://github.com/shawnps"></a><a class="icon-link--twitter" href="https://twitter.com/shawnps"></a></div><div class="lane-item__author_blurb text-left"><p>Shawn Smith is a software engineer based in Japan. His first contribution to Go was in Fall 2012, and he's been using Go primarily ever since.</p></div></div></div></div></div></section></section><span></span><span></span><span></span><section class="layer"><div class="container--large"><div class="container--small section-toc" id="toc"><header class="lane__header--center"><h4><span>Table of Contents</span></h4></header><div class="truncate__text"><div class="truncate__text"><div><div><ul class='toc no-parts'> <li> Introduction </li> <li> Installing Go <ul> <li> Installation </li> <li> Writing Code </li> <li> Editor Integrations </li> <li> (Optional) Linters and Correctness Tooling </li> </ul> </li> <li> Basics <ul> <li> Program Structure </li> <li> Variables and Constants </li> <li> Basic Data Types </li> <li> Structs </li> <li> Operators </li> <li> Conditional Statements </li> <li> Arrays </li> <li> Slices </li> <li> Maps </li> <li> Loops </li> <li> Functions </li> <li> Exported Names </li> <li> Pointers </li> <li> Goroutines </li> <li> Channels </li> <li> Interfaces </li> <li> Error Handling </li> <li> Reading Input </li> <li> Writing Output </li> </ul> </li> <li> Style and Error Handling <ul> <li> Style </li> <li> Error Handling </li> <li> Wrapping Up </li> </ul> </li> <li> Strings <ul> <li> Appending to Strings </li> <li> Splitting strings </li> <li> Counting and finding substrings </li> <li> Advanced string functions </li> <li> Ranging over a string </li> </ul> </li> <li> Supporting Unicode <ul> <li> A very brief history of string encodings </li> <li> Strings are byte slices </li> <li> Printing strings </li> <li> Runes and safely ranging over strings </li> <li> Text Normalization </li> <li> Summary </li> </ul> </li> <li> Concurrency <ul> <li> sync.WaitGroup </li> <li> errgroup </li> <li> Channels </li> <li> Goroutines in web handlers </li> <li> Pollers </li> <li> Race conditions </li> </ul> </li> <li> Testing <ul> <li> Why do we need tests? </li> <li> Writing Tests </li> <li> Testing HTTP Handlers </li> <li> Mocking </li> <li> Generating Coverage Reports </li> <li> Writing Examples </li> </ul> </li> <li> Benchmarks <ul> <li> A simple benchmark </li> <li> Comparing benchmarks </li> <li> Resetting benchmark timers </li> <li> Benchmarking memory allocations </li> <li> Modulo vs Bitwise-and </li> </ul> </li> <li> Tooling <ul> <li> Godoc </li> <li> Go Guru </li> <li> Race Detector </li> <li> Go Report Card </li> <li> Staticcheck </li> <li> Go-fuzz </li> <li> govalidate </li> <li> Pinning tools with Go modules </li> </ul> </li> <li> Security <ul> <li> Keep Go Up to Date </li> <li> CSRF </li> <li> HTTP Strict Transport Security (HSTS) </li> <li> Content Security Policy (CSP) </li> <li> SQL Injection </li> <li> See Also </li> </ul> </li> <li> Going into Production <ul> <li> Continuous Integration & Continuous Deployment (CI/CD) </li> <li> Deployment </li> <li> Logging </li> <li> Monitoring </li> <li> Alerting </li> </ul> </li> <li> Further Reading </li> <li> Acknowledgements <ul> <li> Licenses </li> </ul> </li> <li> Notes </li> </ul> </div></div></div></div></div></div></section><div class="happiness-guarantee" id="happiness-guarantee"><div class="container--large"><h3 class="hg-title"><span>The Leanpub 60 Day 100% Happiness Guarantee</span></h3><p><span>Within <strong>60 days of purchase</strong> you can get a <strong>100% refund</strong> on any Leanpub purchase, in <strong>two clicks</strong>.<br/><br/>Now, this is technically risky for us, since you'll have the book or course files either way. 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class='toc no-parts'\u003E\n \u003Cli\u003E\n Introduction\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Installing Go\n \u003Cul\u003E\n \u003Cli\u003E\n Installation\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Writing Code\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Editor Integrations\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n (Optional) Linters and Correctness Tooling\n \u003C\u002Fli\u003E\n \u003C\u002Ful\u003E\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Basics\n \u003Cul\u003E\n \u003Cli\u003E\n Program Structure\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Variables and Constants\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Basic Data Types\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Structs\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Operators\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Conditional Statements\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Arrays\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Slices\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Maps\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Loops\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Functions\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Exported Names\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Pointers\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Goroutines\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Channels\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Interfaces\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Error Handling\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Reading Input\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Writing Output\n \u003C\u002Fli\u003E\n \u003C\u002Ful\u003E\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Style and Error Handling\n \u003Cul\u003E\n \u003Cli\u003E\n Style\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Error Handling\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Wrapping Up\n \u003C\u002Fli\u003E\n \u003C\u002Ful\u003E\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Strings\n \u003Cul\u003E\n \u003Cli\u003E\n Appending to Strings\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Splitting strings\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Counting and finding substrings\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Advanced string functions\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Ranging over a string\n \u003C\u002Fli\u003E\n \u003C\u002Ful\u003E\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Supporting Unicode\n \u003Cul\u003E\n \u003Cli\u003E\n A very brief history of string encodings\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Strings are byte slices\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Printing strings\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Runes and safely ranging over strings\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Text Normalization\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Summary\n \u003C\u002Fli\u003E\n \u003C\u002Ful\u003E\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Concurrency\n \u003Cul\u003E\n \u003Cli\u003E\n sync.WaitGroup\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n errgroup\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Channels\n \u003C\u002Fli\u003E\n \u003Cli\u003E\n Goroutines in web 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