Initial commit

index.js

@@ -0,0 +1,31 @@
+const net = require('net');
+const fs = require('fs');
+
+const PORT = 9100;
+const FILE_PATH = 'data.txt';
+
+const server = net.createServer((socket) => {
+  console.log('Client connected');
+
+  socket.on('data', (data) => {
+    fs.appendFile(FILE_PATH, data, (err) => {
+      if (err) {
+        console.error(err);
+      } else {
+        console.log('Data written to file');
+      }
+    });
+  });
+
+  socket.on('end', () => {
+    console.log('Client disconnected');
+  });
+
+  socket.on('error', (err) => {
+    console.error(err);
+  });
+});
+
+server.listen(PORT, () => {
+  console.log(`Server running on port ${PORT}`);
+});