handle exceptions while adding the site

routes/sites.js

@@ -36,16 +36,19 @@ router.get('/:id', async function(req, res, next) {
  * 
  * Creates a new site with the provided domain name.
  * 
- * // TODO: Implement validation for domain name format
- * // TODO: Implement error handling for duplicate domains
  * // TODO: Ability to add additional site properties (e.g., name, description)
  */
 router.post('/add', async function(req, res, next) {
     const domain = req.body.domain;
+    let newSite = null;
 
-    const newSite = await siteModel.insert(domain, domain);
-
-    console.log('New site created:', newSite);
+    // insert method passes a lot of validation errors to the caller
+    try {
+        newSite = await siteModel.insert(domain, domain);
+    } catch (error) {
+        console.error('Error creating site:', error);
+        return res.status(400).send('Error creating site: ' + error.message);
+    }
 
     if (!newSite) {
         res.status(400).send('Error creating site');