diff --git a/api/src/routes/discussion.ts b/api/src/routes/discussion.ts
index 0a8bc55..3b1a4bf 100644
--- a/api/src/routes/discussion.ts
+++ b/api/src/routes/discussion.ts
@@ -17,10 +17,12 @@ router.post('/comment', async (req: Request, res: Response) => {
     try {
         let comment = req.body as DiscussionComment;
 
-        console.log(comment);
+        if (!comment.content || comment.content.trim() === '') {
+            return res.status(400).json({ error: 'Comment content cannot be empty' });
+        }
 
-        await postComment(comment, req.user.id);
-        
+        let rowID = await postComment(comment, req.user.id);
+        audit.discussion('comment_posted', { actorId: req.user.id, targetId: rowID }, { parent: comment.post_id })
         res.sendStatus(201);
     } catch (error) {
         logger.error('app', "Failed to post comments", error);
diff --git a/api/src/services/db/discussionService.ts b/api/src/services/db/discussionService.ts
index 62d7298..25c4676 100644
--- a/api/src/services/db/discussionService.ts
+++ b/api/src/services/db/discussionService.ts
@@ -145,4 +145,6 @@ export async function postComment(commentData: DiscussionComment, poster: number
     if (!result.affectedRows || result.affectedRows !== 1) {
         throw new Error('Failed to insert comment: expected 1 row to be inserted');
     }
+    
+    return Number(result.insertId);
 }
\ No newline at end of file
diff --git a/api/src/services/logging/auditLog.ts b/api/src/services/logging/auditLog.ts
index d70109a..f2fab6a 100644
--- a/api/src/services/logging/auditLog.ts
+++ b/api/src/services/logging/auditLog.ts
@@ -57,7 +57,7 @@ class AuditLogger {
         return this.record('course', action, context, data);
     }
 
-    discussion(action: 'created', context: AuditContext, data: any = {}) {
+    discussion(action: 'created' | 'comment_posted', context: AuditContext, data: any = {}) {
         return this.record('discussion', action, context, data);
     }
 }