<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Singleton on Kelly Dev</title><link>https://kelly-chui.github.io/tags/singleton/</link><description>Recent content in Singleton on Kelly Dev</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Mon, 10 Feb 2025 00:00:00 +0000</lastBuildDate><atom:link href="https://kelly-chui.github.io/tags/singleton/index.xml" rel="self" type="application/rss+xml"/><item><title>SniffMEET. AuthManager와 SessionManager의 책임 분리하기</title><link>https://kelly-chui.github.io/posts/sniffmeet-dev-log-auth-session-responsibilities/</link><pubDate>Mon, 10 Feb 2025 00:00:00 +0000</pubDate><guid>https://kelly-chui.github.io/posts/sniffmeet-dev-log-auth-session-responsibilities/</guid><description>&lt;h2 id="작업-배경"&gt;작업 배경&lt;/h2&gt;
&lt;p&gt;AuthManager와 SessionManager는 서로 매우 밀접하게 연관된 작업을 한다. AuthManager는 사용자의 계정 인증을 담당하고 세션을 받아오며, SessionManager는 그 세션을 관리한다.&lt;/p&gt;
&lt;p&gt;하지만 기존 코드에서는 세션 관리를 포함한 대부분의 작업을 &lt;code&gt;AuthManager&lt;/code&gt;가 처리하고, &lt;code&gt;SessionManager&lt;/code&gt;는 세션을 소유하는 역할만 하고 있었다.&lt;/p&gt;
&lt;h3 id="역할-분리"&gt;역할 분리&lt;/h3&gt;
&lt;p&gt;기존에는 &lt;code&gt;AuthManager&lt;/code&gt;에서 세션 갱신, 복원, 저장, 로드 작업을 처리하고 있었고, &lt;code&gt;SessionManager&lt;/code&gt;는 세션의 만료 여부 확인과 세션 객체를 소유하는 역할만 맡고 있었다.&lt;/p&gt;
&lt;div class="code-theme-github"&gt;&lt;div class="highlight"&gt;&lt;pre tabindex="0" class="chroma"&gt;&lt;code class="language-swift" data-lang="swift"&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;&lt;span class="c1"&gt;// AuthManager 인터페이스 프로토콜&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;&lt;span class="kd"&gt;protocol&lt;/span&gt; &lt;span class="nc"&gt;AuthManager&lt;/span&gt; &lt;span class="p"&gt;{&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;static&lt;/span&gt; &lt;span class="kd"&gt;var&lt;/span&gt; &lt;span class="nv"&gt;shared&lt;/span&gt;&lt;span class="p"&gt;:&lt;/span&gt; &lt;span class="n"&gt;AuthManager&lt;/span&gt; &lt;span class="p"&gt;{&lt;/span&gt; &lt;span class="kr"&gt;get&lt;/span&gt; &lt;span class="p"&gt;}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;var&lt;/span&gt; &lt;span class="nv"&gt;authStateSubject&lt;/span&gt;&lt;span class="p"&gt;:&lt;/span&gt; &lt;span class="n"&gt;PassthroughSubject&lt;/span&gt;&lt;span class="p"&gt;&amp;lt;&lt;/span&gt;&lt;span class="n"&gt;AuthState&lt;/span&gt;&lt;span class="p"&gt;,&lt;/span&gt; &lt;span class="n"&gt;Never&lt;/span&gt;&lt;span class="p"&gt;&amp;gt;&lt;/span&gt; &lt;span class="p"&gt;{&lt;/span&gt; &lt;span class="kr"&gt;get&lt;/span&gt; &lt;span class="kr"&gt;set&lt;/span&gt; &lt;span class="p"&gt;}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;func&lt;/span&gt; &lt;span class="nf"&gt;signInAnonymously&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="n"&gt;async&lt;/span&gt; &lt;span class="kr"&gt;throws&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;func&lt;/span&gt; &lt;span class="nf"&gt;restoreSession&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="n"&gt;async&lt;/span&gt; &lt;span class="kr"&gt;throws&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;func&lt;/span&gt; &lt;span class="nf"&gt;refreshSession&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="n"&gt;async&lt;/span&gt; &lt;span class="kr"&gt;throws&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;func&lt;/span&gt; &lt;span class="nf"&gt;loadTokens&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="kr"&gt;throws&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;&lt;span class="p"&gt;}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;&lt;span class="c1"&gt;// SessionManager 클래스&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;&lt;span class="kr"&gt;final&lt;/span&gt; &lt;span class="kd"&gt;class&lt;/span&gt; &lt;span class="nc"&gt;SessionManager&lt;/span&gt; &lt;span class="p"&gt;{&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;static&lt;/span&gt; &lt;span class="kd"&gt;let&lt;/span&gt; &lt;span class="nv"&gt;shared&lt;/span&gt; &lt;span class="p"&gt;=&lt;/span&gt; &lt;span class="n"&gt;SessionManager&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;var&lt;/span&gt; &lt;span class="nv"&gt;session&lt;/span&gt;&lt;span class="p"&gt;:&lt;/span&gt; &lt;span class="n"&gt;SupabaseSession&lt;/span&gt;&lt;span class="p"&gt;?&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;var&lt;/span&gt; &lt;span class="nv"&gt;isExpired&lt;/span&gt;&lt;span class="p"&gt;:&lt;/span&gt; &lt;span class="nb"&gt;Bool&lt;/span&gt; &lt;span class="p"&gt;{&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="k"&gt;guard&lt;/span&gt; &lt;span class="kd"&gt;let&lt;/span&gt; &lt;span class="nv"&gt;session&lt;/span&gt; &lt;span class="k"&gt;else&lt;/span&gt; &lt;span class="p"&gt;{&lt;/span&gt; &lt;span class="k"&gt;return&lt;/span&gt; &lt;span class="kc"&gt;true&lt;/span&gt; &lt;span class="p"&gt;}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="c1"&gt;// 세션 만료를 파악할 때는 30초의 여유시간을 줍니다.&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="k"&gt;return&lt;/span&gt; &lt;span class="n"&gt;Date&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;timeIntervalSince1970&lt;/span&gt;&lt;span class="p"&gt;:&lt;/span&gt; &lt;span class="n"&gt;TimeInterval&lt;/span&gt;&lt;span class="p"&gt;(&lt;/span&gt;&lt;span class="n"&gt;session&lt;/span&gt;&lt;span class="p"&gt;.&lt;/span&gt;&lt;span class="n"&gt;expiresAt&lt;/span&gt; &lt;span class="o"&gt;+&lt;/span&gt; &lt;span class="mi"&gt;30&lt;/span&gt;&lt;span class="p"&gt;))&lt;/span&gt; &lt;span class="o"&gt;&amp;lt;&lt;/span&gt; &lt;span class="n"&gt;Date&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="p"&gt;}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt; &lt;span class="kd"&gt;private&lt;/span&gt; &lt;span class="kd"&gt;init&lt;/span&gt;&lt;span class="p"&gt;()&lt;/span&gt; &lt;span class="p"&gt;{}&lt;/span&gt;
&lt;/span&gt;&lt;/span&gt;&lt;span class="line"&gt;&lt;span class="cl"&gt;&lt;span class="p"&gt;}&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;그래서 세션 관리는 &lt;code&gt;SessionManager&lt;/code&gt;, 인증은 &lt;code&gt;AuthManager&lt;/code&gt;가 맡도록 기능을 다시 정의했다.&lt;/p&gt;</description></item></channel></rss>