Swagger Article - posts --> .get() by id operation.js

/**
 * @swagger
 * /posts/{id}:
 *   get:
 *     summary: gets posts by id
 *     tags: [Posts]
 *     parameters:
 *       - in : path
 *         name: id
 *         description: id of post
 *         schema:
 *           type: integer
 *         required: true
 *     responses:
 *       200:
 *         description: posts by its id
 *         content:
 *           application/json:
 *             schema:
 *               $ref: '#/components/schemas/Post'
 *       400:
 *         description: post can not be found
 */

postRouter.get("/:id", (req, res) => {
  const post = data.find((post) => post.id === +req.params.id);

  if (!post) {
    res.sendStatus(404);
  }

  res.send(post);
});