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content/en/labs/a3.configuration-and-middleware.md

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@@ -24,7 +24,7 @@ Add a new file `book_service/.env`.
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```env
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SERVER_PORT=3000
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SERVER_ALLOWED_ORIGINS="http://localhost:3000,http://127.0.0.1:3000,http://0.0.0.0:3000"
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SERVER_ALLOWED_ORIGINS="http://localhost:3000,http://127.0.0.1:3000"
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SERVER_ALLOWED_METHODS=GET,POST,PUT,DELETE,OPTIONS
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SERVER_ALLOWED_HEADERS=Content-Type,Authorization,Accept
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SERVER_DEFAULT_BODY_LIMIT=20480

docs/index.html

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<!doctype html><html lang=en-US><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><meta name=description content="Rust Programming Language Tutorials for Everyone!"><meta name=author content="Dumindu Madunuwan"><meta name=theme-color content="#ffffff" media="(prefers-color-scheme: light)"><meta name=theme-color content="#101010" media="(prefers-color-scheme: dark)"><title>Learning Rust · Rust Programming Language Tutorials for Everyone!</title><link rel=canonical href=https://learning-rust.github.io/><link rel=stylesheet href=/assets/css/home.min.2f64b534694f7783ee00c07c45f130ef260d59af33aefe9e41a6606a53c5de38.css integrity><link href=https://learning-rust.github.io/pagefind/pagefind-component-ui.css rel=stylesheet><link rel=manifest href=/manifest.json><link rel=icon href=/favicon/favicon.ico><link rel=icon href=/favicon/favicon-16x16.png sizes=16x16 type=image/png><link rel=icon href=/favicon/favicon-32x32.png sizes=32x32 type=image/png><link rel=apple-touch-icon href=/favicon/apple-touch-icon.png sizes=180x180><script async src="https://www.googletagmanager.com/gtag/js?id=G-FZHQCXSZ89"></script><script>window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments)}gtag("js",new Date),gtag("config","G-FZHQCXSZ89")</script><meta property="og:title" content="Learning Rust"><meta property="og:description" content="Learning Rust - Rust Programming Language Tutorials for Everyone!"><meta property="og:type" content="article"><meta property="og:url" content="https://learning-rust.github.io/"><meta property="og:image" content="https://learning-rust.github.io/og.jpg"><meta property="og:site_name" content="Learning Rust"><meta name=twitter:card content="summary_large_image"><meta name=twitter:title content="Learning Rust"><meta name=twitter:description content="Learning Rust - Rust Programming Language Tutorials for Everyone!"><meta name=twitter:image content="https://learning-rust.github.io/og.jpg"><script type=application/ld+json>{"@context":"https://schema.org","@type":"Article","headline":"Learning Rust","description":"Learning Rust - Rust Programming Language Tutorials for Everyone!","image":"https:\/\/learning-rust.github.io\/og.jpg","author":{"@type":"Person","name":"Dumindu Madunuwan","url":"https:\/\/github.com\/dumindu"},"publisher":{"@type":"Organization","name":"Learning Rust","logo":{"@type":"ImageObject","url":"https:\/\/learning-rust.github.io\/"}},"dateModified":"2026-08-24T13:32:01Z","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/learning-rust.github.io\/"}}</script></head><body><div id=content-wrapper><header id=site-header><div id=site-header-logo><a href=https://learning-rust.github.io/><img height=52px src=https://learning-rust.github.io/logo.svg alt="Site Logo"></a></div><div id=site-header-actions><div id=search-box><pagefind-modal-trigger compact=true></pagefind-modal-trigger><pagefind-modal></pagefind-modal></div><div id=theme-dropdown class=dropdown><button class=dropdown-btn aria-haspopup=menu aria-label="Select the theme">
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