Refactor comments API routes and add GET and DELETE routes for comments

backend/routes/api/comments.js

@@ -2,4 +2,46 @@
 const mongoose = require("mongoose");
 const Comment = mongoose.model("Comment");
 
+/**
+ * Express router for handling comments API endpoints.
+ * @module routes/api/comments
+ */
+
 module.exports = router;
+
+/**
+ * GET /api/comments
+ * Retrieves all comments.
+ * @name GET/api/comments
+ * @function
+ * @memberof module:routes/api/comments
+ * @param {Object} req - Express request object.
+ * @param {Object} res - Express response object.
+ * @returns {Object} - JSON response containing the comments.
+ */
+router.get("/", (req, res) => {
+    Comment.find()
+        .then(comments => {
+            res.json({ comments });
+        })
+        .catch(err => console.log(err));
+});
+
+/**
+ * DELETE /api/comments/:id
+ * Deletes a comment by its ID.
+ * @name DELETE/api/comments/:id
+ * @function
+ * @memberof module:routes/api/comments
+ * @param {Object} req - Express request object.
+ * @param {Object} res - Express response object.
+ * @returns {Object} - JSON response indicating the success of the deletion.
+ */
+router.delete("/:id", async (req, res) => {
+    try {
+        await Comment.findByIdAndRemove(req.params.id);
+        res.json({ success: true });
+    } catch (err) {
+        console.log(err);
+    }
+});