add handler & router & server files

src/handler.js

@@ -0,0 +1,43 @@
+const fs = require("fs");
+const path = require("path");
+const homeHandler = (request, response) => {
+	const filePath = path.join(__dirname, "../public/index.html");
+	fs.readFile(filePath, (error, file) => {
+		if (error) {
+			return console.log(error);
+
+			response.writeHead(500, { "Content-Type": "text/html" });
+			response.end("server error");
+		} else {
+			response.writeHead(200, {
+				"Content-Type": "text/html"
+			});
+			response.end(file);
+		}
+	});
+};
+
+const publicHandler = (request, response, endpoint) => {
+	const extinsion = endpoint.split(".")[1];
+	const extinsionType = {
+		html: "text/html",
+		css: "text/css",
+		js: "application/javascript",
+		jpg: "image/jpg",
+		ico: "image/x-icon"
+	};
+
+	const filePath = path.join(__dirname, "/../public", endpoint);
+	fs.readFile(filePath, (error, file) => {
+		if (error) {
+			response.writeHead(500, { "Content-Type": "text/html" });
+			response.end("server error");
+		} else {
+			response.writeHead(200, {
+				"Content-Type": extinsionType[extinsion]
+			});
+			response.end(file);
+		}
+	});
+};
+module.exports = { homeHandler, publicHandler };

src/router.js

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+const { homeHandler, publicHandler } = require("./handler");
+const router = (request, response) => {
+	const endpoint = request.url;
+	if (endpoint === "/") {
+		homeHandler(request, response);
+	} else if (endpoint.split(".")[1]) {
+		publicHandler(request, response, endpoint);
+	}
+};
+
+module.exports = router;

src/server.js

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+const http = require("http");
+const router = require("./router");
+const server = http.createServer(router);
+
+server.listen(3000, () => {
+	console.log(
+		"Server is listening on http://localhost:3000. Ready to accept requests!"
+	);
+});