[B! go] damononのブックマーク

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<button type="button" class="js-display-all-tags" data-gtm-click-label="user-tags-show-all">タグをすべて表示</button> </p> </div> <div class="centerarticle-sidebar-menu"> <h3 class="centerarticle-aside-title">関連タグで絞り込む (16)</h3> <ul class="centerarticle-sub-navi"> <li> <a href="/damonon/go/*%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" > *あとで読む </a> </li> <li> <a href="/damonon/go/Architecture/" > Architecture </a> </li> <li> <a href="/damonon/go/docker/" > docker </a> </li> <li> <a href="/damonon/go/golang/" > golang </a> </li> <li> <a href="/damonon/go/it/" > it </a> </li> <li> <a href="/damonon/go/js/" > js </a> </li> <li> <a href="/damonon/go/SSH/" > SSH </a> </li> <li> <a href="/damonon/go/TCP/" > TCP </a> </li> <li> <a href="/damonon/go/Vue/" > Vue </a> </li> <li> <a href="/damonon/go/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" > あとで読む </a> </li> <li> <a href="/damonon/go/%E3%82%A8%E3%83%A9%E3%83%BC/" > エラー </a> </li> <li> <a 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data-gtm-click-label="reaction-twitter-clicks"><span>{{count}} clicks</span></a> {{/tweet_url}} {{^tweet_url}} <span>{{count}} clicks</span> {{/tweet_url}} </script> <script type="text/x-template" id="template-bookmark-item"> {{^is_wiped}} <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="{{url}}"> <div class="centerarticle-entry {{#has_image}}is-image-entry-unit{{/has_image}}"> <h3 class="centerarticle-entry-title"> <a href="{{url}}" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="{{favicon_url}}" alt="">{{title}}</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="{{page_url}}" class="js-keyboard-entry-page-openable" title="{{title}} ({{total_bookmarks}}ブックマーク)" data-gtm-click-label="user-bookmark-users">{{total_bookmarks_with_user_postfix}}</a> </span> </li> <li> <a href="/damonon/{{url_query}}" title="『{{root_title}}』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> {{root_title}} </a> </li> {{#is_categorized}} <li><a href="{{category_path}}" data-gtm-click-label="user-bookmark-category">{{category_title}}</a></li> {{/is_categorized}} </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">{{{summary_with_keyword_links}}}</p> {{#has_image}} <a href="{{canonical_url}}" class="centerarticle-entry-image" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-thumb"> <img src="{{image_url}}" alt="{{title}}"> </a> {{/has_image}} </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-{{location_id}}"> <div class="centerarticle-reaction-comment js-user-bookmark-comment {{badge_icon}}" data-url="{{url}}" data-user-name="{{author_name}}"> <a href="{{top_page_path}}" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="{{profile_icon_url}}" alt="{{author_name}}" title="{{author_name}}" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="{{anchor_url}}" class="js-anchor-path" data-gtm-click-label="user-reaction-username">{{author_name}}</a></span> <span class="centerarticle-reaction-timestamp">{{created}}</span> <span class="js-private-icon status {{#is_public}}is-hidden{{/is_public}}"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment">{{{comment_expanded}}}</span> <ul class="centerarticle-reaction-tags js-tag-text"> {{#tags}} <li><a href="/{{author_name}}/{{escaped_label}}/" data-gtm-click-label="user-reaction-tag">{{label}}</a></li> {{/tags}} </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="{{#is_bookmark}}comment-permalink{{/is_bookmark}}{{^is_bookmark}}original-permalink{{/is_bookmark}} js-comment-permalink"> <a href="{{comment_page_path}}" data-gtm-click-label="user-reaction-permalink" rel="{{#should_nofollow}}nofollow{{/should_nofollow}}">{{#is_bookmark}}リスト{{/is_bookmark}}{{^is_bookmark}}リンク{{/is_bookmark}}</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> {{#following_bookmarks}} <li> <a href="{{anchor_url}}" class="following-bookmark-link" data-gtm-click-label="user-bookmark-following-bookmarker-icon"> <img src="{{profile_icon_url}}" alt="{{author_name}}" class="following-bookmark-icon" > </a> <span class="following-bookmark-popup"> <span class="following-bookmark-username">{{author_name}}</span><span class="following-bookmark-timestamp">{{created}}</span> <span class="following-bookmark-text"> {{ #comment }}<span class="following-bookmark-comment">{{ comment }}</span>{{ /comment }} <ul class="following-bookmark-tags"> {{ #tags }}<li>{{ label }}</li>{{ /tags }} </ul> </span> </span> </li> {{/following_bookmarks}} {{#following_bookmarks.length}} <li class="centerarticle-reaction-following-more"><button type="button" class="js-show-all-following-bookmarks" data-gtm-click-label="user-bookmark-showall-following-bookmarks">すべて表示</button></li> {{/following_bookmarks.length}} </ul> <div class="js-user-following-bookmarks-detail is-hidden"> {{#following_bookmarks}} <div class="centerarticle-reaction-comment js-user-bookmark-comment {{badge_icon}}" data-url="{{url}}" data-user-name="{{author_name}}"> <a href="{{top_page_path}}" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="{{profile_icon_url}}" alt="{{author_name}}" title="{{author_name}}" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="{{anchor_url}}" class="js-anchor-path" data-gtm-click-label="user-reaction-username">{{author_name}}</a></span> <span class="centerarticle-reaction-timestamp">{{created}}</span> <span class="js-private-icon status {{#is_public}}is-hidden{{/is_public}}"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment">{{{comment_expanded}}}</span> <ul class="centerarticle-reaction-tags js-tag-text"> {{#tags}} <li><a href="/{{author_name}}/{{escaped_label}}/" data-gtm-click-label="user-reaction-tag">{{label}}</a></li> {{/tags}} </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="{{#is_bookmark}}comment-permalink{{/is_bookmark}}{{^is_bookmark}}original-permalink{{/is_bookmark}} js-comment-permalink"> <a href="{{comment_page_path}}" data-gtm-click-label="user-reaction-permalink" rel="{{#should_nofollow}}nofollow{{/should_nofollow}}">{{#is_bookmark}}リスト{{/is_bookmark}}{{^is_bookmark}}リンク{{/is_bookmark}}</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> {{/following_bookmarks}} </div> </li> {{/is_wiped}} </script> <script type="text/x-template" id="template-following-bookmarker-icon"> <li> <a href="{{anchor_url}}" class="following-bookmark-link" data-gtm-click-label="user-bookmark-following-bookmarker-icon"> <img src="{{profile_icon_url}}" alt="{{author_name}}" class="following-bookmark-icon" > </a> <span class="following-bookmark-popup"> <span class="following-bookmark-username">{{author_name}}</span><span class="following-bookmark-timestamp">{{created}}</span> <span class="following-bookmark-text"> {{ #comment }}<span class="following-bookmark-comment">{{ comment }}</span>{{ /comment }} <ul class="following-bookmark-tags"> {{ #tags }}<li>{{ label }}</li>{{ /tags }} </ul> </span> </span> </li> </script> <script type="text/x-template" id="template-bookmark-item-editor"> <div class="centerarticle-entry {{#has_image}}is-image-entry-unit{{/has_image}}"> <h3 class="centerarticle-entry-title"> <a href="{{url}}" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="{{favicon_url}}" alt="">{{title}}</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="{{page_url}}" class="js-keyboard-entry-page-openable" title="{{title}} ({{total_bookmarks}}ブックマーク)" data-gtm-click-label="user-bookmark-users">{{total_bookmarks_with_user_postfix}}</a> </span> </li> <li> <a href="/damonon/{{url_query}}" title="『{{root_title}}』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> {{root_title}} </a> </li> {{#is_categorized}} <li><a href="{{category_path}}" data-gtm-click-label="user-bookmark-category">{{category_title}}</a></li> {{/is_categorized}} </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">{{{summary_with_keyword_links}}}</p> {{#has_image}} <a href="{{canonical_url}}" class="centerarticle-entry-image" target="_blank" rel="noopener{{#noreferrer}} noreferrer{{/noreferrer}}" data-gtm-click-label="user-bookmark-thumb"> <img src="{{image_url}}" alt="{{title}}"> </a> {{/has_image}} </div> </div> </script> <script type="text/x-template" id="template-bookmark-pager"> <li> <div class="centerarticle-pager"> <span class="centerarticle-waiting js-read-more-waiting is-hidden"><img src="https://b.st-hatena.com/77d2ee6f79ddaf78eb2d198936bae315b6721993/images/v4/public/common/loading@2x.gif" alt="残りのブックマークを読み込んでいます" width="16" height="16" /></span> {{#previous}} <a href="{{page_path}}">{{label}}</a> {{/previous}} {{#pages}} {{#page_path}} <span><a href="{{page_path}}">{{label}}</a></span> {{/page_path}} {{^page_path}} <span>{{label}}</span> {{/page_path}} {{/pages}} {{#next}} <a href="{{page_path}}">{{label}}</a> {{/next}} </div> </li> </script> <ul class="js-user-bookmark-item-list js-keyboard-controllable-container"> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://zenn.dev/nobonobo/articles/0b722c9c2b18d5"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://zenn.dev/nobonobo/articles/0b722c9c2b18d5" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fzenn.dev%2Fnobonobo%2Farticles%2F0b722c9c2b18d5" alt="">Goエラーハンドリング戦略</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/zenn.dev/nobonobo/articles/0b722c9c2b18d5" class="js-keyboard-entry-page-openable" title="Goエラーハンドリング戦略 (190ブックマーク)" data-gtm-click-label="user-bookmark-users">190 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fzenn.dev%2Fnobonobo" title="『zenn.dev/nobonobo』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> zenn.dev/nobonobo </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary"><a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>のエラーハンドリングが採ったスタイル多値返し直積（関数の返値とエラーを両方返す） try-finallyをdeferという機構でカバー panicはプロセスを落とすためのもの <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>はこの戦略でエラーハンドリングを行うとしましたので、「多値はなぜタプルじゃないんだ？」、「直和（返値orエラー）で十分じゃ？」「panic-recoverでtry-catchできそう？」などいう様な他の処理系の風習を持ち込むことは意味がありません。そしてそれらの提案の多くはすでに検討されリジェクトされてきた経緯があります。「try組み込み関数」プロポーザルなんかも検討されマージ直前くらいまで進んだこともありますが、「<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>のエラーハンドリング」にとって一長一短がありました。その欠点課題は解決できずに最終的にリジェクトされました。「多値返し」は実に<a data-gtm-click-label="entry-summary-keyword" href="/q/CPU">CPU</a>フレンドリーな機構で、C言語の関数呼び出し規約にちょ</p> <a href="https://zenn.dev/nobonobo/articles/0b722c9c2b18d5" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img 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Groupの<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2">エンジニア</a>が現場で培った<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%8A%80%E8%A1%93">技術</a>やトレンドについて発表していきます。 2回目の開催となる今回登壇するのは、合同会社EXNOA プラットフォーム開発<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>部の PFシステム部に所属する岡崎翔悟氏。「<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>とクリーンアーキテクチャ」の内容で、実際の現場にいるからわかる<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>の開発やクリーンアーキテクチャについて話していきます。関連資料はこちら。合同会社EXNOAとは岡崎翔悟氏：今回「<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>とクリーンアーキテクチャ」と題しまして、EXNOAの岡崎が発表いたします。「EXNOAって何だ？」と思われた方が多数いらっしゃると思うので、まずはそちらの説明から。DMM GAMESは2020年4月10日付でEXNOAに社名を変更しました。ただし、一般作品のブランド名として「DMM GAMES」は残っています。一般作品の「DMM GAMES」とR1</p> <a href="https://logmi.jp/tech/articles/323451" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/53f6aac945def601659b93d106c15dc9ee7aa05e/height=288;version=1;width=512/https%3A%2F%2Fimg.logmi.jp%2Farticle_images%2FCdtsFZoabTtgkUxguLuZec.png" alt="Goはクリーンアーキテクチャの思想を活かせるか？　DMMのゲームプラットフォームにGo言語を選んだ理由"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-4693189846826191650"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://logmi.jp/tech/articles/323451" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20201025#bookmark-4693189846826191650" class="js-anchor-path" 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class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://engineering.mercari.com/blog/entry/goforbeginners/"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://engineering.mercari.com/blog/entry/goforbeginners/" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" 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data-gtm-click-label="entry-summary-keyword" href="/q/RPA">rpa</a>y <a data-gtm-click-label="entry-summary-keyword" href="/q/tech">Tech</a> Openness Month の11日目の記事です。「プログラミング言語<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>完全入門」の期間限定公開のお知らせでも書いたように、メルペイでは、社外の方向けに<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>pher道場という体系的に<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>を学べる場を無償で提供してきました。<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>の普及を目的にこれまでに8回開催し100人以上の方に参加していただきました。また、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>pher道場の動画や資料は<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>pher道場自習室として誰でも利用できるようになっており、現時点で300名以上の方が利用されています。 <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>pher道場の資料のベースになっている「プログラミング言語<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>完全入門」は、2020年7月31日までの限定公開になっていましたが、<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>日より公開期限を撤廃し、完全公開することになりました。また、<a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>日8月31日から始まる「On<a data-gtm-click-label="entry-summary-keyword" href="/q/LINE">line</a> Summer Int</p> <a href="https://engineering.mercari.com/blog/entry/goforbeginners/" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/b39056dc78c1590704328bf8ffd40ef64fe5b697/height=288;version=1;width=512/https%3A%2F%2Fengineering.mercari.com%2F%2Fimg%2Fogp%2Fogp_a.jpg" alt="「プログラミング言語Go完全入門」の「完全」公開のお知らせ | メルカリエンジニアリング"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-4690741184568975170"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://engineering.mercari.com/blog/entry/goforbeginners/" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20200901#bookmark-4690741184568975170" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2020/09/01</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> <li><a href="/damonon/it/" data-gtm-click-label="user-reaction-tag">it</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/4690741184568975170/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://blog.bltinc.co.jp/entry/2019/06/27/010812"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://blog.bltinc.co.jp/entry/2019/06/27/010812" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fblog.bltinc.co.jp%2Fentry%2F2019%2F06%2F27%2F010812" alt="">goenvの導入方法とModuleの使い方【macユーザ向け】 - Colorful Bullet</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/blog.bltinc.co.jp/entry/2019/06/27/010812" class="js-keyboard-entry-page-openable" title="goenvの導入方法とModuleの使い方【macユーザ向け】 - Colorful Bullet (1ブックマーク)" data-gtm-click-label="user-bookmark-users">1 user</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fblog.bltinc.co.jp%2F" title="『blog.bltinc.co.jp』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> blog.bltinc.co.jp </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">皆様はじめまして、社会人2年<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2">エンジニア</a>のym<a data-gtm-click-label="entry-summary-keyword" href="/q/it">it</a>omoと申します！ <a data-gtm-click-label="entry-summary-keyword" href="/q/%E6%9C%AC">本</a>記事ではタイトルにある通り、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>envの導入と最近導入されたModuleの使い方について説明していきます。先日<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>バージョン1.12系が正式にリリースされました。 https://<a data-gtm-click-label="entry-summary-keyword" href="/q/golang">golang</a>.org/doc/<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>1.12 1.12へのアップ<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%83%87%E3%83%BC%E3%83%88">デート</a>で大きく変わったことと言えば、1.11から存在するModuleがより強くサポートされたことです。次回のメジャーアップ<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%83%87%E3%83%BC%E3%83%88">デート</a>の対象となる1.13系から正式に、依存関係の管理がModuleに完全移行するようなのでdepを使用している方は今のうちからModuleに慣れておいた方が良いでしょう。ということで、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>未導入の方はもちろん、1.12以前のバージョンを使用しているユーザにも向けdepでの依存関係からModuleでの依存関係の管理に移行をする方法を簡単にご紹介していきます。</p> <a href="https://blog.bltinc.co.jp/entry/2019/06/27/010812" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/41c9d579d2ab1d54e068589892276a08cc23c8ae/height=288;version=1;width=512/https%3A%2F%2Fcdn.image.st-hatena.com%2Fimage%2Fscale%2F0440d93a4641cb09bda5d8da282ade87caa86f57%2Fbackend%3Dimagemagick%3Bheight%3D1200%3Bversion%3D1%3Bwidth%3D1200%2Fhttps%253A%252F%252Fcdn-ak.f.st-hatena.com%252Fimages%252Ffotolife%252Fy%252Fymitomo%252F20190623%252F20190623225226.png" alt="goenvの導入方法とModuleの使い方【macユーザ向け】 - Colorful Bullet"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-4676690509611531778"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://blog.bltinc.co.jp/entry/2019/06/27/010812" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20191102#bookmark-4676690509611531778" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2019/11/02</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> 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class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://qiita.com/po3rin/items/0d8fef14bfe222f334b7"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://qiita.com/po3rin/items/0d8fef14bfe222f334b7" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fqiita.com%2Fpo3rin%2Fitems%2F0d8fef14bfe222f334b7" alt="">Goを始めて1年間で最高にお世話になったGo関連ブックマークを晒します。 - Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/po3rin/items/0d8fef14bfe222f334b7" class="js-keyboard-entry-page-openable" title="Goを始めて1年間で最高にお世話になったGo関連ブックマークを晒します。 - Qiita (333ブックマーク)" data-gtm-click-label="user-bookmark-users">333 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2Fpo3rin" title="『qiita.com/po3rin』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com/po3rin </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">自分は普段は<a data-gtm-click-label="entry-summary-keyword" href="/q/Chrome">Chrome</a>のブックマークを使ってよく見返す記事を保存しています。<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>を一年間書いてきてブックマークを整理したのですが、せっかくなのでお世話になったブックマーク記事を晒します。 <a data-gtm-click-label="entry-summary-keyword" href="/q/BL">Bl</a>og & Serial The <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> <a data-gtm-click-label="entry-summary-keyword" href="/q/BL">Bl</a>og <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>の公式ブログ。深いところまでしっかり書かれているので、調べたいトピックはまずはここで調べたい。 https://<a data-gtm-click-label="entry-summary-keyword" href="/q/BL">bl</a>og.<a data-gtm-click-label="entry-summary-keyword" href="/q/golang">golang</a>.org/ Practical <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>のcontributorであるDave Cheneyさんのブログです。<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>で開発&運用する上でのアドバイスが書かれており、入門記事だけでは得られないノウハウがふんだんにまとめられています。 https://dave.cheney.<a data-gtm-click-label="entry-summary-keyword" href="/q/net">net</a>/practical-<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a> <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>ならわかるシステムプログラミング @shibukawaさんの連載です。<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>で<a data-gtm-click-label="entry-summary-keyword" href="/q/%E4%BD%8E%E3%83%AC%E3%82%A4%E3%83%A4%E3%83%BC">低レイヤー</a>を学んでいきます。根底の</p> <a href="https://qiita.com/po3rin/items/0d8fef14bfe222f334b7" class="centerarticle-entry-image" target="_blank" rel="noopener" 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alt="Goを始めて1年間で最高にお世話になったGo関連ブックマークを晒します。 - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-4675608882989274946"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/po3rin/items/0d8fef14bfe222f334b7" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20191011#bookmark-4675608882989274946" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2019/10/11</span> <span class="js-private-icon status is-hidden"><img 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class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">なぜ <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> はマイクロサービスのための言語なのか - Why <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> is a language for mic<a data-gtm-click-label="entry-summary-keyword" href="/q/ROS">ros</a>ervices</p> <a href="https://speakerdeck.com/cohhei/naze-go-hamaikurosabisufalsetamefalseyan-yu-nafalseka-why-go-is-a-language-for-microservices" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/1d8f0d8c0f5e0354d8c83dc5e98fd7593c23bed5/height=288;version=1;width=512/https%3A%2F%2Ffiles.speakerdeck.com%2Fpresentations%2Ff33ec94f8c76452c8fce696fe35b78fd%2Fslide_0.jpg%3F13027306" alt="なぜ Go はマイクロサービスのための言語なのか - Why Go is a language for microservices"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-4671491358047043010"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://speakerdeck.com/cohhei/naze-go-hamaikurosabisufalsetamefalseyan-yu-nafalseka-why-go-is-a-language-for-microservices" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20190714#bookmark-4671491358047043010" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2019/07/14</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div 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class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://qiita.com/po3rin/items/5329d6e06d3d01bfec99"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://qiita.com/po3rin/items/5329d6e06d3d01bfec99" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fqiita.com%2Fpo3rin%2Fitems%2F5329d6e06d3d01bfec99" alt="">「Vue.js + Go + AWS + LINE Messaging API」で結婚式のWEB招待状 &amp; 画像解析と共有 &amp; エンディングムービー自動生成システムを開発した！！ - Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/po3rin/items/5329d6e06d3d01bfec99" class="js-keyboard-entry-page-openable" title="「Vue.js + Go + AWS + LINE Messaging API」で結婚式のWEB招待状 &amp; 画像解析と共有 &amp; エンディングムービー自動生成システムを開発した！！ - Qiita (169ブックマーク)" data-gtm-click-label="user-bookmark-users">169 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2F" title="『qiita.com』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">「<a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.js + <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> + <a data-gtm-click-label="entry-summary-keyword" href="/q/aws">AWS</a> + <a data-gtm-click-label="entry-summary-keyword" href="/q/LINE">LINE</a> Messaging <a data-gtm-click-label="entry-summary-keyword" href="/q/API">API</a>」で<a data-gtm-click-label="entry-summary-keyword" href="/q/%E7%B5%90%E5%A9%9A%E5%BC%8F">結婚式</a>のWEB招待状 & 画像解析と共有 & エンディングムービー自動生成システムを開発した！！ Introduction こんにちはpo3rinです。先日<a data-gtm-click-label="entry-summary-keyword" href="/q/%E7%B5%90%E5%A9%9A%E5%BC%8F">結婚式</a>があり、タイトルの通り「<a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.js + <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> + <a data-gtm-click-label="entry-summary-keyword" href="/q/aws">AWS</a> + <a data-gtm-click-label="entry-summary-keyword" href="/q/LINE">LINE</a> Messaging <a data-gtm-click-label="entry-summary-keyword" href="/q/API">API</a>」で<a data-gtm-click-label="entry-summary-keyword" href="/q/%E7%B5%90%E5%A9%9A%E5%BC%8F">結婚式</a>を便利 & 盛り上げるサービスを作ったので共有します。新郎新婦2人ともWEB業界なので<a data-gtm-click-label="entry-summary-keyword" href="/q/%E7%B5%90%E5%A9%9A%E5%BC%8F">結婚式</a>のテーマを「plus plus ( ++ つまりプログラミングにおけるインクリメントを表現)」と少し洒落たテーマで<a data-gtm-click-label="entry-summary-keyword" href="/q/%E7%B5%90%E5%A9%9A%E5%BC%8F">結婚式</a>を作りました。テーマの通り2人のできることを組み合わせて<a data-gtm-click-label="entry-summary-keyword" href="/q/%E7%B5%90%E5%A9%9A%E5%BC%8F">結婚式</a>を作ろうとしたのがこの開発の始まりでした。ウェディング業界のみなさん、お<a data-gtm-click-label="entry-summary-keyword" href="/q/%E4%BB%95%E4%BA%8B">仕事</a>お待ちしてます笑今回の投稿では下記を中心にお話します。 * 何を作ったか * インフラ構成</p> <a href="https://qiita.com/po3rin/items/5329d6e06d3d01bfec99" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/cbc1f0f7d57c0fbd7dc87d81bc07542c36a83eff/height=288;version=1;width=512/https%3A%2F%2Fcdn.qiita.com%2Fassets%2Fqiita-fb-2887e7b4aad86fd8c25cea84846f2236.png" alt="「Vue.js + Go + AWS + LINE Messaging API」で結婚式のWEB招待状 &amp; 画像解析と共有 &amp; エンディングムービー自動生成システムを開発した！！ - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-4670615114897717922"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/po3rin/items/5329d6e06d3d01bfec99" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20190625#bookmark-4670615114897717922" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2019/06/25</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/Vue/" data-gtm-click-label="user-reaction-tag">Vue</a></li> <li><a href="/damonon/js/" data-gtm-click-label="user-reaction-tag">js</a></li> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/4670615114897717922/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://note.mu/mkudo/n/n6482c47e9708"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://note.mu/mkudo/n/n6482c47e9708" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fnote.com%2Fmkudo%2Fn%2Fn6482c47e9708" alt="">Go 言語で API サーバーの開発をはじめるためのライブラリ選定｜maco</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/note.com/mkudo/n/n6482c47e9708" class="js-keyboard-entry-page-openable" title="Go 言語で API サーバーの開発をはじめるためのライブラリ選定｜maco (375ブックマーク)" data-gtm-click-label="user-bookmark-users">375 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fnote.com%2Fmkudo" title="『note.com/mkudo』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> note.com/mkudo </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">こんにちは、まちいろの工藤です。まちいろでは開発フレームワークに <a data-gtm-click-label="entry-summary-keyword" href="/q/rails">Rails</a> を採用していますが、最近の新規案件では <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> 言語を採用してみています。この記事では、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> で開発を始めるにあたって行ったライブラリ選定の中身を紹介したいと思います。選定にあたっては、awesome-<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a> や Qi<a data-gtm-click-label="entry-summary-keyword" href="/q/it">it</a>a などの記事を参考にしました。 Modules<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> 1.11 から <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> modules が導入されたとのことで、素直に <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> modules を利用することにしました。特にハマることもなく利用ができています。 Web Application Framework<a data-gtm-click-label="entry-summary-keyword" href="/q/grpc">gRPC</a> + <a data-gtm-click-label="entry-summary-keyword" href="/q/grpc">grpc</a>-<a data-gtm-click-label="entry-summary-keyword" href="/q/gateway">gateway</a> or <a data-gtm-click-label="entry-summary-keyword" href="/q/grpc">grpc</a>-web ・https://<a data-gtm-click-label="entry-summary-keyword" href="/q/github">github</a>.com/<a data-gtm-click-label="entry-summary-keyword" href="/q/grpc">grpc</a>/<a data-gtm-click-label="entry-summary-keyword" href="/q/grpc">grpc</a>-<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a> ・🙆proto でスキーマ駆動開発が可能・🙅‍♂️REST <a data-gtm-click-label="entry-summary-keyword" href="/q/API">API</a> を提供する場合は <a data-gtm-click-label="entry-summary-keyword" href="/q/grpc">grpc</a>-ga</p> <a href="https://note.com/mkudo/n/n6482c47e9708" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/a3d101e4d04758efee190e57cda036b465e86a81/height=288;version=1;width=512/https%3A%2F%2Fassets.st-note.com%2Fproduction%2Fuploads%2Fimages%2F65240156%2Fprofile_b6fcfa8d73da757679e2b737693e4fb6.png%3Ffit%3Dbounds%26format%3Djpeg%26quality%3D85%26width%3D330" alt="Go 言語で API サーバーの開発をはじめるためのライブラリ選定｜maco"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-4666066722454149954"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://note.mu/mkudo/n/n6482c47e9708" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20190319#bookmark-4666066722454149954" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2019/03/19</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> <li><a href="/damonon/%E3%83%A9%E3%82%A4%E3%83%96%E3%83%A9%E3%83%AA/" data-gtm-click-label="user-reaction-tag">ライブラリ</a></li> <li><a href="/damonon/%E9%96%8B%E7%99%BA/" data-gtm-click-label="user-reaction-tag">開発</a></li> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/4666066722454149954/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://qiita.com/muroon/items/8add8da911341312176d"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://qiita.com/muroon/items/8add8da911341312176d" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fqiita.com%2Fmuroon%2Fitems%2F8add8da911341312176d" alt="">Goで書くClean Architecture API - Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/muroon/items/8add8da911341312176d" class="js-keyboard-entry-page-openable" title="Goで書くClean Architecture API - Qiita (160ブックマーク)" data-gtm-click-label="user-bookmark-users">160 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2Fmuroon" title="『qiita.com/muroon』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com/muroon </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">Enterprise Business Rules ビジネスルールの為のデータ構造を持ったオブジェクト。データの実態を表す場所。 Application Business Rules ビジネスルールを操作する場所。つまりこのアプリケーションで何ができるかを実践します。 In<a data-gtm-click-label="entry-summary-keyword" href="/q/TERF">terf</a>ace Adapter 外部からの入力、データの永続化、表示を担当する場所 Frameworks & Drivers Webフレームワーク、<a data-gtm-click-label="entry-summary-keyword" href="/q/DB">DB</a>操作の実際に担うソース、 <a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%83%95%E3%83%AD%E3%83%B3%E3%83%88%E3%82%A8%E3%83%B3%E3%83%89">フロントエンド</a>の<a data-gtm-click-label="entry-summary-keyword" href="/q/UI">UI</a>などがここに所属しています。外側のレイヤーの要素を直接参照してはならない上記の図におけるこの矢印は依存を表しており、内側のレイヤーから外側のレイヤーの要素への依存を禁じます。ここでいう依存とは要素(構造体、変数など)への直接参照をさせないということです。では外側のレイヤー要素を参照せざる得ないは、どうするのでしょ</p> <a href="https://qiita.com/muroon/items/8add8da911341312176d" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/602fb1cb994d58e24a15b941309d1aa4ff5882f8/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Fadvent-calendar-ogp-background-7940cd1c8db80a7ec40711d90f43539e.jpg%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9R28lRTMlODElQTclRTYlOUIlQjglRTMlODElOEZDbGVhbiUyMEFyY2hpdGVjdHVyZSUyMEFQSSZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZ0eHQtY29sb3I9JTIzM0EzQzNDJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnM9NWM5N2VkMzYwNzdlYWU1NjJjYTBiYzJhMzMzNjBkMDk%26mark-x%3D120%26mark-y%3D96%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9OTcyJnR4dD0lNDBtdXJvb24mdHh0LWNvbG9yPSUyMzNBM0MzQyZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPWYwMjhlYTFjMTA2MGIwMmY1MWQ3MWU5MWYxMmNkNzFl%26blend-x%3D120%26blend-y%3D500%26blend-mode%3Dnormal%26s%3D0869db046cacc597d688ecf9bcccfe6c" alt="Goで書くClean Architecture API - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-374800761"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/muroon/items/8add8da911341312176d" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20181210#bookmark-374800761" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/12/10</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/Architecture/" data-gtm-click-label="user-reaction-tag">Architecture</a></li> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/374800761/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://qiita.com/po3rin/items/c70105f684e6816621d2"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://qiita.com/po3rin/items/c70105f684e6816621d2" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fqiita.com%2Fpo3rin%2Fitems%2Fc70105f684e6816621d2" alt="">「Vue.js + Go言語 + Docker」で作る！画像アップロード機能実装ハンズオン - Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/po3rin/items/c70105f684e6816621d2" class="js-keyboard-entry-page-openable" title="「Vue.js + Go言語 + Docker」で作る！画像アップロード機能実装ハンズオン - Qiita (267ブックマーク)" data-gtm-click-label="user-bookmark-users">267 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2Fpo3rin" title="『qiita.com/po3rin』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com/po3rin </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">こんにちはpo3rinです。<a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.js Advent Calender 2018 9日目の記事です。 8日目の記事は <a data-gtm-click-label="entry-summary-keyword" href="/q/vue">vue</a>.js(n<a data-gtm-click-label="entry-summary-keyword" href="/q/UX">ux</a>t.js) の plugin はとても便利でした。 11月にフリーの案件で <a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.js + <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語で画像アップロード機能のあるCMSを作りました。<a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.jsでの実装の際には n<a data-gtm-click-label="entry-summary-keyword" href="/q/PM">pm</a>モジュールである <a data-gtm-click-label="entry-summary-keyword" href="/q/vue">vue</a>2-dropzone を使うと、<a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.js にとって便利な機能が提供されており、すぐにアップロード機能が作れました。なので今回は <a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.js + <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語で画像アップロードを行う機能の実装をハンズオン形式で紹介していきます。今回は <a data-gtm-click-label="entry-summary-keyword" href="/q/vue">Vue</a>.js のアドベントカレンダーとしての投稿なので、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語の実装を飛ばしたい方向けに、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語のインストールが不要になるように、すでに<a data-gtm-click-label="entry-summary-keyword" href="/q/docker">Docker</a>環境を用意してあります。せっかくなので今回は Docke</p> <a href="https://qiita.com/po3rin/items/c70105f684e6816621d2" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/9f7a44d9db8760d3a254ecb7c37a15a789a612b7/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Fadvent-calendar-ogp-background-7940cd1c8db80a7ec40711d90f43539e.jpg%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-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%26mark-x%3D120%26mark-y%3D96%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9OTcyJnR4dD0lNDBwbzNyaW4mdHh0LWNvbG9yPSUyMzNBM0MzQyZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPTA0ZTA3YTE4OTdjYmNkOWIyMWExMjk1YWUwYzJmMjdl%26blend-x%3D120%26blend-y%3D500%26blend-mode%3Dnormal%26s%3D82751ae56a08828a13421ef826471a2c" alt="「Vue.js + Go言語 + Docker」で作る！画像アップロード機能実装ハンズオン - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-374783570"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/po3rin/items/c70105f684e6816621d2" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20181209#bookmark-374783570" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/12/09</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/Vue/" data-gtm-click-label="user-reaction-tag">Vue</a></li> <li><a href="/damonon/docker/" data-gtm-click-label="user-reaction-tag">docker</a></li> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/374783570/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://qiita.com/trrrrrys/items/c2908b672ea7bcaf0d73"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://qiita.com/trrrrrys/items/c2908b672ea7bcaf0d73" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fqiita.com%2Ftrrrrrys%2Fitems%2Fc2908b672ea7bcaf0d73" alt="">[Go言語] もしも童話「シンデレラ」が、Goで書かれていたら。 - Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/trrrrrys/items/c2908b672ea7bcaf0d73" class="js-keyboard-entry-page-openable" title="[Go言語] もしも童話「シンデレラ」が、Goで書かれていたら。 - Qiita (334ブックマーク)" data-gtm-click-label="user-bookmark-users">334 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2F" title="『qiita.com』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">シンデレラが<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>で書かれていたら。という妄想です。少し長いですがお付き合いください。 TL;DR ソースはここにおいてます https://<a data-gtm-click-label="entry-summary-keyword" href="/q/github">github</a>.com/lboavde1121/cinderella あらすじ以下あらすじ。シンデレラは、継母とその連れ子である姉たちに日々<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%81%84%E3%81%98%E3%82%81">いじめ</a>られていた。あるとき、城で舞踏会が開かれ、姉たちは着飾って出ていくが、シンデレラにはドレスがなかった。舞踏会に行きたがるシンデレラを、不可思議な力（魔法使い、仙女、ネズミ、母親の形見の木、白鳩など）が助け、準備を整えるが、魔法は午前零時に解けるので帰ってくるようにと警告される。シンデレラは、城で王子に見初められる。零時の鐘の音に焦ったシンデレラは階段に<a data-gtm-click-label="entry-summary-keyword" href="/q/%E9%9D%B4">靴</a>を落としてしまう。王子は、<a data-gtm-click-label="entry-summary-keyword" href="/q/%E9%9D%B4">靴</a>を手がかりにシンデレラを捜す。姉2人も含め、シンデレラの落とした<a data-gtm-click-label="entry-summary-keyword" href="/q/%E9%9D%B4">靴</a>は、シンデレラ以外の誰にも合わなかった。シン</p> <a href="https://qiita.com/trrrrrys/items/c2908b672ea7bcaf0d73" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/cbc1f0f7d57c0fbd7dc87d81bc07542c36a83eff/height=288;version=1;width=512/https%3A%2F%2Fcdn.qiita.com%2Fassets%2Fqiita-fb-2887e7b4aad86fd8c25cea84846f2236.png" alt="[Go言語] もしも童話「シンデレラ」が、Goで書かれていたら。 - Qiita"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-374260502"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://qiita.com/trrrrrys/items/c2908b672ea7bcaf0d73" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20181120#bookmark-374260502" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/11/20</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/it/" data-gtm-click-label="user-reaction-tag">it</a></li> <li><a href="/damonon/%E3%83%97%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%9F%E3%83%B3%E3%82%B0/" data-gtm-click-label="user-reaction-tag">プログラミング</a></li> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/374260502/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://re-engines.com/2018/11/05/go%E8%A8%80%E8%AA%9E%E3%81%AE%E3%82%A8%E3%83%A9%E3%83%BC%E3%83%8F%E3%83%B3%E3%83%89%E3%83%AA%E3%83%B3%E3%82%B0%E3%81%A8%E3%83%AD%E3%82%B0%E3%83%AD%E3%83%BC%E3%83%86%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3/"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://re-engines.com/2018/11/05/go%E8%A8%80%E8%AA%9E%E3%81%AE%E3%82%A8%E3%83%A9%E3%83%BC%E3%83%8F%E3%83%B3%E3%83%89%E3%83%AA%E3%83%B3%E3%82%B0%E3%81%A8%E3%83%AD%E3%82%B0%E3%83%AD%E3%83%BC%E3%83%86%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3/" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fre-engines.com%2F2018%2F11%2F05%2Fgo%25E8%25A8%2580%25E8%25AA%259E%25E3%2581%25AE%25E3%2582%25A8%25E3%2583%25A9%25E3%2583%25BC%25E3%2583%258F%25E3%2583%25B3%25E3%2583%2589%25E3%2583%25AA%25E3%2583%25B3%25E3%2582%25B0%25E3%2581%25A8%25E3%2583%25AD%25E3%2582%25B0%25E3%2583%25AD%25E3%2583%25BC%25E3%2583%2586%25E3%2583%25BC%25E3%2582%25B7%25E3%2583%25A7%25E3%2583%25B3%2F" alt="">Go言語のエラーハンドリングとログローテーション | RE:ENGINES</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/re-engines.com/2018/11/05/go%E8%A8%80%E8%AA%9E%E3%81%AE%E3%82%A8%E3%83%A9%E3%83%BC%E3%83%8F%E3%83%B3%E3%83%89%E3%83%AA%E3%83%B3%E3%82%B0%E3%81%A8%E3%83%AD%E3%82%B0%E3%83%AD%E3%83%BC%E3%83%86%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3/" class="js-keyboard-entry-page-openable" title="Go言語のエラーハンドリングとログローテーション | RE:ENGINES (80ブックマーク)" data-gtm-click-label="user-bookmark-users">80 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fre-engines.com%2F" title="『re-engines.com』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> re-engines.com </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">はじめにこんにちは、今回は<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語でのエラーハンドリングとログ関連についての記事となります。例外のない<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語でどのようにエラーを伝搬させていくのかについて一つの方法を紹介させていただき、その後、そのエラーをファイルに出力する方法を紹介したいと思います。なお、開発環境の構築がまだの方は、ぜひこちらで環境構築をしてからお読みいただければと思います。エラーハンドリングについてですが、まずは<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語で<a data-gtm-click-label="entry-summary-keyword" href="/q/ERR">err</a>orとは一体何ものなのかについて触れたいと思います。その後、pkg/<a data-gtm-click-label="entry-summary-keyword" href="/q/ERR">err</a>orsパッケージで<a data-gtm-click-label="entry-summary-keyword" href="/q/ERR">err</a>orをwrapをする方法を記載し、次の節でそれを活用した独自の<a data-gtm-click-label="entry-summary-keyword" href="/q/ERR">err</a>orsパッケージを作成したいと思います。 <a data-gtm-click-label="entry-summary-keyword" href="/q/ERR">err</a>or インターフェース <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語では例外の概念がないため（<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>2では例外が組み込まれるかもしれませんが）、ファイルの処理などで下記のように<a data-gtm-click-label="entry-summary-keyword" href="/q/ERR">err</a>orを返却するコードをよく目に</p> <a href="https://re-engines.com/2018/11/05/go%E8%A8%80%E8%AA%9E%E3%81%AE%E3%82%A8%E3%83%A9%E3%83%BC%E3%83%8F%E3%83%B3%E3%83%89%E3%83%AA%E3%83%B3%E3%82%B0%E3%81%A8%E3%83%AD%E3%82%B0%E3%83%AD%E3%83%BC%E3%83%86%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3/" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/57c6a4fc32600077c663125ec9ccd0954ce05a5a/height=288;version=1;width=512/https%3A%2F%2Fre-engines.com%2Fwp-content%2Fuploads%2F2018%2F10%2Fgolang.png" alt="Go言語のエラーハンドリングとログローテーション | RE:ENGINES"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-373691386"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://re-engines.com/2018/11/05/go%E8%A8%80%E8%AA%9E%E3%81%AE%E3%82%A8%E3%83%A9%E3%83%BC%E3%83%8F%E3%83%B3%E3%83%89%E3%83%AA%E3%83%B3%E3%82%B0%E3%81%A8%E3%83%AD%E3%82%B0%E3%83%AD%E3%83%BC%E3%83%86%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3/" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20181105#bookmark-373691386" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/11/05</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> <li><a href="/damonon/golang/" data-gtm-click-label="user-reaction-tag">golang</a></li> <li><a href="/damonon/%E3%82%A8%E3%83%A9%E3%83%BC/" data-gtm-click-label="user-reaction-tag">エラー</a></li> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> </ul> </div> <div class="centerarticle-reaction-foot"> <div class="centerarticle-reaction-meta"> <span class="comment-permalink js-comment-permalink"> <a href="/entry/373691386/comment/damonon" data-gtm-click-label="user-reaction-permalink" rel="nofollow">リンク</a> </span> <span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="https://employment.en-japan.com/engineerhub/entry/2018/06/19/110000"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="https://employment.en-japan.com/engineerhub/entry/2018/06/19/110000" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Feh-career.com%2Fengineerhub%2Fentry%2F2018%2F06%2F19%2F110000" alt="">「Go言語らしさ」とは何か？　Simplicityの哲学を理解し、Go Wayに沿った開発を進めることの良さ - エンジニアHub｜Webエンジニアのキャリアを考える！</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/eh-career.com/engineerhub/entry/2018/06/19/110000" class="js-keyboard-entry-page-openable" title="「Go言語らしさ」とは何か？　Simplicityの哲学を理解し、Go Wayに沿った開発を進めることの良さ - エンジニアHub｜Webエンジニアのキャリアを考える！ (1030ブックマーク)" data-gtm-click-label="user-bookmark-users">1030 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Feh-career.com%2F" title="『eh-career.com』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> eh-career.com </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary"><a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2">エンジニア</a>Hub > 記事一覧 > 「<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語らしさ」とは何か？　<a data-gtm-click-label="entry-summary-keyword" href="/q/sim">Sim</a>plic<a data-gtm-click-label="entry-summary-keyword" href="/q/it">it</a>yの哲学を理解し、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> Wayに沿った開発を進めることの良さ「<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語らしさ」とは何か？　<a data-gtm-click-label="entry-summary-keyword" href="/q/sim">Sim</a>plic<a data-gtm-click-label="entry-summary-keyword" href="/q/it">it</a>yの哲学を理解し、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> Wayに沿った開発を進めることの良さプログラミング言語には作者の設計思想が強く現れますが、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語もまた後発であることを生かし、しっかりとした思想に基づいて開発されています。公式のドキュメント等で語られている<a data-gtm-click-label="entry-summary-keyword" href="/q/sim">Sim</a>plic<a data-gtm-click-label="entry-summary-keyword" href="/q/it">it</a>yの哲学を理解し、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>言語らしさ、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a> Wayに従って開発する良さについて、<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%81%AF%E3%81%A6%E3%81%AA">はてな</a>チーフ<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2">エンジニア</a>の松木雅幸（Songmu）さんが解説します。 id:Songmuと申します。<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%81%AF%E3%81%A6%E3%81%AA">はてな</a>東京オフィスでチーフ<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2">エンジニア</a>を務め、<a data-gtm-click-label="entry-summary-keyword" href="/q/mackerel">Mackerel</a>というサーバー監視のSaaS開発においてプロダクトマネージャーを担当しています。筆者が勤めている株式会社<a data-gtm-click-label="entry-summary-keyword" href="/q/%E3%81%AF%E3%81%A6%E3%81%AA">はてな</a>では、2</p> <a href="https://eh-career.com/engineerhub/entry/2018/06/19/110000" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img src="https://cdn-ak-scissors.b.st-hatena.com/image/square/7224e560ac29c2ecec87e5cab6c836a7653d7556/height=288;version=1;width=512/https%3A%2F%2Feh-career.com%2Fimage%2Farticle_hub%2F94%2F95%2F194_01.jpg" alt="「Go言語らしさ」とは何か？　Simplicityの哲学を理解し、Go Wayに沿った開発を進めることの良さ - エンジニアHub｜Webエンジニアのキャリアを考える！"> </a> </div> </div> <div class="centerarticle-reaction js-user-bookmark-id-container" id="bookmark-366082487"> <div class="centerarticle-reaction-comment js-user-bookmark-comment " data-url="https://employment.en-japan.com/engineerhub/entry/2018/06/19/110000" data-user-name="damonon"> <a href="/damonon/" data-gtm-click-label="user-reaction-usericon" class="centerarticle-reaction-thumb"> <img src="https://cdn.profile-image.st-hatena.com/users/damonon/profile.png" alt="damonon" title="damonon" class="centerarticle-reaction-image"> </a> <div class="centerarticle-reaction-main"> <span class="centerarticle-reaction-username"><a href="https://b.hatena.ne.jp/damonon/20180731#bookmark-366082487" class="js-anchor-path" data-gtm-click-label="user-reaction-username">damonon</a></span> <span class="centerarticle-reaction-timestamp">2018/07/31</span> <span class="js-private-icon status is-hidden"><img src="/images/v4/public/userpage/icon-private.svg" alt="非公開" width="10px" height="10px"></span> <div class="centerarticle-reaction-main-comment-tags"> <span class="js-comment"></span> <ul class="centerarticle-reaction-tags js-tag-text"> <li><a href="/damonon/%E3%81%82%E3%81%A8%E3%81%A7%E8%AA%AD%E3%82%80/" data-gtm-click-label="user-reaction-tag">あとで読む</a></li> <li><a href="/damonon/go/" data-gtm-click-label="user-reaction-tag">go</a></li> <li><a href="/damonon/%E9%96%8B%E7%99%BA/" 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class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">今回は、<a data-gtm-click-label="entry-summary-keyword" href="/q/golang">Golang</a>の<a data-gtm-click-label="entry-summary-keyword" href="/q/golang">golang</a>.org/x/<a data-gtm-click-label="entry-summary-keyword" href="/q/crypto">crypto</a>/sshパッケージを使って、SSHサーバを構築してみました。かなりミニマムな実装ですが、リモートからSSH接続して、対話的にコマンドが実行できるところまで実装しました。コード <a data-gtm-click-label="entry-summary-keyword" href="/q/github">github</a>.com package m<a data-gtm-click-label="entry-summary-keyword" href="/q/ai">ai</a>n import ( "<a data-gtm-click-label="entry-summary-keyword" href="/q/golang">golang</a>.org/x/<a data-gtm-click-label="entry-summary-keyword" href="/q/crypto">crypto</a>/ssh" "<a data-gtm-click-label="entry-summary-keyword" href="/q/log">log</a>" "<a data-gtm-click-label="entry-summary-keyword" href="/q/net">net</a>" "io/ioutil" "fmt" "os/exec" "<a data-gtm-click-label="entry-summary-keyword" href="/q/github">github</a>.com/kr/pty" "sync" 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<span class="list-star-container js-list-star-container"></span> <span class="twitter-click js-short-url-clicks"></span> </div> <ul class="centerarticle-reaction-menu"> <li class="js-add-star-container add-star-container"></li> </ul> </div> </div> </div> </div> <ul class="centerarticle-reaction-following js-user-following-bookmarks-icon"> </ul> <div class="js-user-following-bookmarks-detail is-hidden"> </div> </li> <li class="bookmark-item js-user-bookmark-item js-intent-share-bookmark" data-target-url="http://qiita.com/mumoshu/items/0d2f2a13c6e9fc8da2a4"> <div class="centerarticle-entry is-image-entry-unit"> <h3 class="centerarticle-entry-title"> <a href="http://qiita.com/mumoshu/items/0d2f2a13c6e9fc8da2a4" class="js-clickable-link js-keyboard-openable" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-title"><img class="centerarticle-entry-favicon" src="https://cdn-ak2.favicon.st-hatena.com/64?url=https%3A%2F%2Fqiita.com%2Fmumoshu%2Fitems%2F0d2f2a13c6e9fc8da2a4" alt="">他言語から来た人がGoを使い始めてすぐハマったこととその答え - Qiita</a> </h3> <ul class="centerarticle-entry-data"> <li> <span class="centerarticle-users"> <a href="/entry/s/qiita.com/mumoshu/items/0d2f2a13c6e9fc8da2a4" class="js-keyboard-entry-page-openable" title="他言語から来た人がGoを使い始めてすぐハマったこととその答え - Qiita (347ブックマーク)" data-gtm-click-label="user-bookmark-users">347 users</a> </span> </li> <li> <a href="/damonon/?url=https%3A%2F%2Fqiita.com%2Fmumoshu" title="『qiita.com/mumoshu』の新着エントリー" data-gtm-click-label="user-bookmark-domain"> qiita.com/mumoshu </a> </li> <li><a href="/hotentry/it" data-gtm-click-label="user-bookmark-category">テクノロジー</a></li> </ul> <div class="centerarticle-entry-contents"> <p class="centerarticle-entry-summary">環境構築するまでに知りたかったこと <a data-gtm-click-label="entry-summary-keyword" href="/q/golang">Golang</a>の最新バージョンは？ 1.16.6 (2020/07/12リリース) <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>のインストール方法は? <a data-gtm-click-label="entry-summary-keyword" href="/q/MacOS">macOS</a> の場合は brew で OK この場合、<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>のsdkは /usr/local/Cellar/<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>/<バージョン>/libexec にインストールされます。 IntelliJ IDEA や <a data-gtm-click-label="entry-summary-keyword" href="/q/go">Go</a>Land にような IDE に「<a data-gtm-click-label="entry-summary-keyword" href="/q/go">GO</a>ROOT」というものの指定を求められたら、このパスを使います。 brew で入らないバージョンの <a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a> が必要だったり、いくつかのバージョンを併用したい場合は $ <a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a> get <a data-gtm-click-label="entry-summary-keyword" href="/q/golang">golang</a>.org/dl/<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>1.14.4 $ <a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>1.14.4 download # 1.xx.0 の場合 $ <a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a> get <a data-gtm-click-label="entry-summary-keyword" href="/q/golang">golang</a>.org/dl/<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>1.15 $ <a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a>1.15 download # 上記で<a data-gtm-click-label="entry-summary-keyword" href="/q/go">go</a> getしたg</p> <a href="https://qiita.com/mumoshu/items/0d2f2a13c6e9fc8da2a4" class="centerarticle-entry-image" target="_blank" rel="noopener" data-gtm-click-label="user-bookmark-thumb"> <img 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