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The video introduces building RESTful APIs with Node.js and Express, starting with the essential setup of Node.js [] and its package manager, npm []. It details three methods to initialize a new Express app: manual `package.json` creation [], using `npm init` for an interactive setup [], and employing the `express-generator` tool for a complete template []. Crucially, it explains the role of the `package.json` file in managing application metadata and dependencies [], highlighting how omitting `node_modules` and listing dependencies avoids large data transfers [].
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動画の要約は視聴を開始すると表示されます
The video introduces building RESTful APIs with Node.js and Express, starting with the essential setup of Node.js [] and its package manager, npm []. It details three methods to initialize a new Express app: manual `package.json` creation [], using `npm init` for an interactive setup [], and employing the `express-generator` tool for a complete template []. Crucially, it explains the role of the `package.json` file in managing application metadata and dependencies [], highlighting how omitting `node_modules` and listing dependencies avoids large data transfers [].