Copilot third commit

Author: atcreddy

comments.js

@@ -0,0 +1,48 @@
+// Create web server
+//
+var express = require('express');
+var app = express();
+var bodyParser = require('body-parser');
+var fs = require('fs');
+var path = require('path');
+
+app.use(bodyParser.urlencoded({ extended: false }));
+app.use(bodyParser.json());
+
+// Read comments from file
+app.get('/comments', function(req, res) {
+  fs.readFile('comments.json', 'utf8', function(err, data) {
+    if (err) {
+      console.log('Error: ' + err);
+      res.send('Error: ' + err);
+      return;
+    }
+    res.send(data);
+  });
+});
+
+// Write comments to file
+app.post('/comments', function(req, res) {
+  fs.readFile('comments.json', 'utf8', function(err, data) {
+    if (err) {
+      console.log('Error: ' + err);
+      res.send('Error: ' + err);
+      return;
+    }
+    var comments = JSON.parse(data);
+    comments.push(req.body);
+    fs.writeFile('comments.json', JSON.stringify(comments, null, 4), function(err) {
+      if (err) {
+        console.log('Error: ' + err);
+        res.send('Error: ' + err);
+        return;
+      }
+      res.send(comments);
+    });
+  });
+});
+
+// Start server
+var server = app.listen(3000, function() {
+  console.log('Server listening on port 3000');
+});