Contact form submissions with Supabase - Supabase Tutorial

Enhancing My Contact Form with Supabase: A Comprehensive Guide

In this video tutorial, learn how to create an efficient contact form and integrating it with Supabase, an open-source alternative to Firebase. Supabase offers a robust, scalable database solution based on Postgres, which I find to be both reliable and powerful. I especially appreciate that Supabase provides a free tier, allowing me to experiment with its features.

Getting Started with Supabase

I start by setting up a new project on Supabase. The first step is to define a table named "entries" within the Supabase database. This table includes several key columns:

• email (text, not nullable)
• name (text, not nullable)
• subject (text, nullable)
• message (text, not nullable)
• created_at (timestamp, nullable, default now())

This structured table setup ensures that every contact form submission is captured with all the essential details, including timestamps for tracking submissions.

Implementing the Contact Form

Next, I demonstrate how to handle form submissions by targeting the form from the DOM. I attach an event listener to the "submit" event of the form. When the form is submitted, my script collects all input values, constructs a "submission" object with these values, and sends this object to the Supabase database using the "insert" method.

User Feedback and Form Reset

To enhance user experience, I include feedback mechanisms. If the submission to Supabase is successful, users receive a confirmation alert saying, "Thanks for contacting us." If there’s an error, they are prompted with, "There was an error, please try again." Additionally, I ensure that the form fields are cleared post-submission, making it easy for users to submit another inquiry.

Securing My Contact Form

A critical aspect I cover in the video is securing the contact form against unauthorized access. I enable row-level security in Supabase, which allows me to define precise rules for data access and modification. I set up a policy permitting all users to insert new rows while restricting access to reading, updating, or deleting existing rows. This way, I ensure that only new submissions can be added without compromising the integrity of the existing data.

Testing and Validation

The final step involves testing the contact form to ensure it functions properly. I submit a test form and confirm that the data is accurately recorded in the Supabase database. I also verify that unauthorized users cannot access or modify existing rows, ensuring that the form remains secure and reliable.

Conclusion

This tutorial has been an invaluable resource for me and should be for developers looking to integrate a contact form with Supabase. The powerful features of Supabase and its ease of use make it an excellent choice for various applications, and this guide provides a clear, practical approach to implementing and securing a contact form.

For those interested in leveraging Supabase for their projects, my video offers a thorough introduction, showcasing both the database's capabilities and the process of creating a functional, secure contact form.