Хранение и получение статических файлов

import mime from "mime";

interface Env {
assets: KVNamespace;
}

export default {
	async fetch(request, env, ctx): Promise<Response> {
		// Return error if not a get request
		if(request.method !== 'GET'){
			return new Response('Method Not Allowed', {
				status: 405,
			})
		}

    	// Get the key from the url & return error if key missing
    	const parsedUrl = new URL(request.url)
    	const key = parsedUrl.pathname.replace(/^\/+/, '') // Strip any preceding /'s
    	if(!key){
    		return new Response('Missing path in URL', {
    			status: 400
    		})
    	}

    	// Get the mimetype from the key path
    	const extension = key.split('.').pop();
    	let mimeType = mime.getType(extension) || "text/plain";
    	if (mimeType.startsWith("text") || mimeType === "application/javascript") {
    		mimeType += "; charset=utf-8";
    	}

    	// Get the value from the Workers KV store and return it if found
    	const value = await env.assets.get(key, 'arrayBuffer')
    	if(!value){
    		return new Response("Not found", {
    			status: 404
    		})
    	}

    	// Return the response from the Workers application with the value from the KV store
    	return new Response(value, {
    		status: 200,
    		headers: new Headers({
    			"Content-Type": mimeType
    		})
    	});
    },

} satisfies ExportedHandler<Env>;

{
	"$schema": "node_modules/wrangler/config-schema.json",
	"name": "<ENTER_WORKER_NAME>",
	"main": "src/index.ts",
	"compatibility_date": "2025-03-03",
	"observability": {
		"enabled": true
	},
	"kv_namespaces": [
		{
			"binding": "assets",
			"id": "<YOUR_BINDING_ID>"
		}
	]
}

import mime from 'mime';
import parser from 'accept-language-parser'

interface Env {
assets: KVNamespace;
}

export default {
  async fetch(request, env, ctx): Promise<Response> {
    // Return error if not a get request
    if(request.method !== 'GET'){
      return new Response('Method Not Allowed', {
        status: 405,
      })
    }

    // Get the key from the url & return error if key missing
    const parsedUrl = new URL(request.url)
    const key = parsedUrl.pathname.replace(/^\/+/, '') // Strip any preceding /'s
    if(!key){
      return new Response('Missing path in URL', {
        status: 400
      })
    }

    	// Add handler for translation path (with early return)
    	if(key === 'hello-world'){
    		// Retrieve the language header from the request and the translations from Workers KV
    		const languageHeader = request.headers.get('Accept-Language') || 'en' // Default to English
    		const translations : {
    			"language_code": string,
    			"message": string
    		}[] = await env.assets.get('hello-world.json', 'json') || [];

    		// Extract the requested language
    		const supportedLanguageCodes = translations.map(item => item.language_code)
    		const languageCode = parser.pick(supportedLanguageCodes, languageHeader, {
    			loose: true
    		})

    		// Get the message for the selected language
    		let selectedTranslation = translations.find(item => item.language_code === languageCode)
    		if(!selectedTranslation) selectedTranslation = translations.find(item => item.language_code === "en")
    		const helloWorldTranslated = selectedTranslation!['message'];

    		// Generate and return the translated html
    		const html = `<!DOCTYPE html>
    		<html>
    			<head>
    				<title>Hello World translation</title>
    			</head>
    			<body>
    				<h1>${helloWorldTranslated}</h1>
    			</body>
    		</html>
    		`
    		return new Response(html, {
    			status: 200,
    			headers: {
    				'Content-Type': 'text/html; charset=utf-8'
    			}
    		})
    	}

    // Get the mimetype from the key path
    const extension = key.split('.').pop();
    let mimeType = mime.getType(extension) || "text/plain";
    if (mimeType.startsWith("text") || mimeType === "application/javascript") {
      mimeType += "; charset=utf-8";
    }

    // Get the value from the Workers KV store and return it if found
    const value = await env.assets.get(key, 'arrayBuffer')
    if(!value){
      return new Response("Not found", {
        status: 404
      })
    }

    // Return the response from the Workers application with the value from the KV store
    return new Response(value, {
      status: 200,
      headers: new Headers({
        "Content-Type": mimeType
      })
    });

},
} satisfies ExportedHandler<Env>;

{
	"$schema": "node_modules/wrangler/config-schema.json",
	"name": "<ENTER_WORKER_NAME>",
	"main": "src/index.ts",
	"compatibility_date": "2025-03-03",
	"observability": {
		"enabled": true
	},
	"kv_namespaces": [
		{
			"binding": "assets",
			"id": "<YOUR_BINDING_ID>"
		}
	]
}