The last method is PUT, and it is usually used to update a row in a database.

PUT /post/:slug

In Postman, you need to select the PUT method first, then the URL of the post you want to edit. Let's edit my-blog-post-3; so the URL will be http://localhost:3000/api/post/my-blog-post-3. In the Headers tab, you need to add, as in the POST method, the Content-Type header with the value application/x-www-form-urlencoded. The last part is the Body tab, where you can send the new data you want to replace, in this case, a new title and new content:

If everything works fine, you should get this response:

Again, if you want to verify the post was updated correctly, then go to the /posts endpoint in your browser:

As you can see, the post title, content, and slug were updated correctly.