62 lines
2.0 KiB
JavaScript
62 lines
2.0 KiB
JavaScript
const http = require("http");
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const fs = require("fs");
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const path = require("path");
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const PORT = process.env.PORT || 3000;
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const DATA = path.join(__dirname, "data.json");
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function readItems() {
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try { return JSON.parse(fs.readFileSync(DATA, "utf8")); } catch (_) { return []; }
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}
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function writeItems(items) {
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fs.writeFileSync(DATA, JSON.stringify(items, null, 2));
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}
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function body(req) {
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return new Promise((resolve) => {
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let s = "";
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req.on("data", (c) => (s += c));
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req.on("end", () => { try { resolve(JSON.parse(s || "{}")); } catch (_) { resolve({}); } });
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});
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}
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http.createServer(async (req, res) => {
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const url = req.url.split("?")[0];
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// CORS headers
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res.setHeader("Access-Control-Allow-Origin", "*");
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res.setHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
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res.setHeader("Access-Control-Allow-Headers", "Content-Type");
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if (req.method === "OPTIONS") {
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res.writeHead(200);
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return res.end();
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}
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// API: get all items
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if (req.method === "GET" && url === "/api/items") {
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res.writeHead(200, { "Content-Type": "application/json" });
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return res.end(JSON.stringify(readItems()));
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}
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// API: save all items
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if (req.method === "POST" && url === "/api/items") {
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const items = await body(req);
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writeItems(items);
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res.writeHead(200, { "Content-Type": "application/json" });
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return res.end(JSON.stringify({ ok: true }));
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}
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// Static files
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let file = url === "/" ? "/index.html" : url;
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const full = path.join(__dirname, file);
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if (full.startsWith(__dirname) && fs.existsSync(full) && fs.statSync(full).isFile()) {
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const ext = path.extname(full);
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const type = ext === ".css" ? "text/css" : ext === ".js" ? "application/javascript" : ext === ".svg" ? "image/svg+xml" : "text/html";
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res.writeHead(200, { "Content-Type": type + "; charset=utf-8" });
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return res.end(fs.readFileSync(full));
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}
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res.writeHead(404); res.end("Not found");
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}).listen(PORT, () => console.log("Сервер на порту " + PORT));
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