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Ultimate Guide to Implementing DELETE Operations in Next.js with Prisma

In this tutorial, we will learn how to delete a post in Next.js using the API and UI code. Deleting a post requires making changes to the folder structure and implementing the delete method. Let's dive in!

Changing the Folder Structure

Currently, the folder structure for the API is not suitable for deleting posts. We need to pass an ID to delete a specific post. To enable this functionality, we will need to alter the folder structure. Here's how:

  • Create a new folder named "posts" within the API directory.
  • Move the existing file into the "posts" folder.
  • Rename the file to "index".

Now, when we access the "posts" endpoint, it will work without specifying the file name.

Implementing the Delete Method

To delete a post, we need to create a new file in the "posts" folder and pass the ID as a parameter. Here are the steps:

  • Import the necessary modules: Next.js request and response.
  • Copy the existing code from the get method.
  • Modify the copied code to implement the delete functionality.
  • Retrieve the ID from the request parameters.
  • Use the ID to delete the corresponding record from the database.
  • Return a response indicating that the post has been deleted.

After implementing the delete method, the API URL for deleting a post will be "Local Host 3000 API posts/ID".

Adding the Delete Button

Now, let's add a delete button to the UI to allow users to delete posts. Here's how:

  • Locate the section where the posts are displayed.
  • Add a delete button for each post.
  • Style the button using Tailwind CSS.
  • Attach a click event to the button.
  • In the click event handler, call the delete function and pass the post ID.

With the delete button in place, users will be able to delete individual posts from the UI.

Testing the Delete Functionality

Now that we have implemented the delete method and added the delete button, let's test the functionality. Here's how:

  • Ensure that there are multiple posts available.
  • Click the delete button for a specific post.
  • Verify that the post has been deleted from the UI.

If the post is successfully deleted, the page will not be refreshed. To update the UI, simply refresh the page manually.

Conclusion

Deleting a post in Next.js requires making changes to the folder structure and implementing the delete method. By following the steps outlined in this tutorial, you can easily enable the delete functionality and allow users to delete posts from the UI. Happy coding!

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