Copilot third commit

comments.js

@@ -0,0 +1,58 @@
+// Create web server
+// Create a web server that listens on port 3000 and serves the comments.html file from the previous exercise.
+// The comments.html file should be served as a static file.
+// The server should respond to the GET /comments route and return the comments.json file from the previous exercise.
+// The server should respond to the POST /comments route and save the posted comment to the comments.json file.
+// The server should respond with a 201 status code and an empty body.
+// The server should respond to any other route with a 404 status code and an empty body.
+
+const http = require("http");
+const fs = require("fs");
+const path = require("path");
+
+const server = http.createServer((req, res) => {
+  if (req.method === "GET" && req.url === "/comments") {
+    res.writeHead(200, { "Content-Type": "application/json" });
+    const readStream = fs.createReadStream(
+      path.join(__dirname, "comments.json")
+    );
+    readStream.pipe(res);
+  } else if (req.method === "POST" && req.url === "/comments") {
+    let body = "";
+    req.on("data", (chunk) => {
+      body += chunk;
+    });
+    req.on("end", () => {
+      const comment = JSON.parse(body);
+      fs.readFile(path.join(__dirname, "comments.json"), (err, data) => {
+        if (err) {
+          res.writeHead(500);
+          res.end();
+          return;
+        }
+        const comments = JSON.parse(data);
+        comments.push(comment);
+        fs.writeFile(
+          path.join(__dirname, "comments.json"),
+          JSON.stringify(comments),
+          (err) => {
+            if (err) {
+              res.writeHead(500);
+              res.end();
+              return;
+            }
+            res.writeHead(201);
+            res.end();
+          }
+        );
+      });
+    });
+  } else {
+    res.writeHead(404);
+    res.end();
+  }
+});
+
+server.listen(3000, () => {
+  console.log("Server is running on http://localhost:3000");
+});