How to Set Up Next.js with Prisma and PlanetScale: A Simple Guide

Building Scalable Applications with Next.js, Prisma, and Supabase

In the rapidly evolving world of web development, creating scalable applications that can handle growth and complexity without a hitch is important. This is where the powerful trio of Next.js, Prisma, and Supabase comes into play.

This blog dives deep into how you can leverage these technologies to build a robust Next.js application that scales seamlessly, ensuring a smooth experience for both developers and users alike.

Gathering Environment Variables

Before diving into the code, it's crucial to set up a solid foundation. Start by creating a new .env file in your project's root directory. This file will securely store your environment variables, including SUPABASE_URL, SUPABASE_ANON_KEY, and SUPABASE_SERVICE_KEY. These keys are essential for connecting your Next.js app to Supabase, ensuring your app's data interactions are secure and efficient.

Setting Up Next.js and Prisma

Kickstart your js project by running the following command:

Copy
1npx create-next-app my-app

This command scaffolds a new Next.js project, setting the stage for a modern, scalable application.

Install Prisma and Initialize

Next, install Prisma to handle your app's database interactions elegantly:

Copy
1npm install prisma --save-dev
2npx prisma init

This step not only installs Prisma but also initializes a new Prisma project, creating a prisma directory and a .env file if it doesn't already exist.

Configuring the Database Schema

The heart of your application's data layer is its database schema. Define your schema within the prisma directory, leveraging Prisma's powerful schema definition language. This schema acts as a blueprint for your database, outlining tables, relationships, and more.

Setting Up Supabase

To get started with Supabase, you first need to create a Supabase client. This client will allow your Next.js application to interact with your Supabase project. Begin by installing the @supabase/supabase-js package:

Copy
1npm install @supabase/supabase-js

Once installed, you can create a Supabase client instance by importing the package and passing your Supabase project URL and anon key to the createClient function. Here’s how you can do it:

Copy
1import { createClient } from '@supabase/supabase-js';
2
3const supabaseUrl = 'https://your-supabase-project-url.supabase.co';
4const supabaseAnonKey = 'your-supabase-anon-key';
5const supabase = createClient(supabaseUrl, supabaseAnonKey);

This setup is crucial as it establishes a connection between your Next.js app and your Supabase project, enabling seamless data interactions.

Integrating Prisma and Supabase

After defining your schema, install the Prisma client:

Copy
1npm install @prisma/client

This client enables seamless interaction with your Supabase database, allowing for sophisticated CRUD operations and more, directly from your Next.js app.

Authentication and Authorization

Authentication is a critical component of modern web applications. Implementing Supabase Auth can streamline this process by installing Supabase auth helpers:

Copy
1npm install @supabase/auth-helpers-nextjs

These helpers facilitate implementing robust authentication and authorization mechanisms, leveraging Supabase’s capabilities to manage user sessions effectively.

Server-Side Rendering with Supabase

Leverage Next.js’s server-side rendering feature to enhance your app’s performance and SEO. By rendering pages on the server, you ensure that your app’s content is ready to go the moment it reaches the user’s browser. Additionally, consider using Supabase Client Components for handling authentication within your applications, as they offer versatility and can be used alongside server components as detailed in the Supabase documentation.

Configuring Next.js for Server-Side Rendering

To leverage server-side rendering (SSR) with Supabase in your Next.js application, you need to wrap your app with the SupabaseProvider component. This ensures that Supabase is available throughout your app, enhancing performance and SEO. Create a pages/_app.js file and configure it as follows:

Copy
1import { SupabaseProvider } from '@supabase/auth-helpers-nextjs';
2import { supabase } from '../lib/supabase';
3
4function MyApp({ Component, pageProps }) {
5  return (
6    <SupabaseProvider value={supabase}>
7      <Component {...pageProps} />
8    </SupabaseProvider>
9  );
10}
11
12export default MyApp;

By doing this, you ensure that your application is ready to handle server-side rendering with Supabase, providing a smoother and faster user experience.

Real-time Functionality with Supabase

Setting up real-time subscriptions with Supabase adds a layer of interactivity and immediacy to your app, allowing users to see updates as they happen, without needing to refresh their browsers. You can also create new posts by sending an HTTP POST request using the Fetch API, ensuring you set the appropriate headers.

Enabling Real-time Subscriptions

Real-time functionality is a game-changer for modern web applications, allowing users to see updates instantly without refreshing the page. Supabase makes it easy to set up real-time subscriptions. Here’s how you can subscribe to insert events on a specific table:

Copy
1import { supabase } from '../lib/supabase';
2
3supabase
4  .from('todos')
5  .on('INSERT', (payload) => {
6    console.log('New todo inserted:', payload);
7  })
8  .subscribe();

This example demonstrates how to listen for new entries in the todos table. Whenever a new todo is inserted, the payload is logged to the console, providing real-time updates to your application.

Using Prisma Client JS with Supabase

Dive deeper into the capabilities of Prisma Client JS, including configuring the provider Prisma Client JS to specify your database provider, to enhance your interaction with the Supabase database. This advanced usage opens up new possibilities for CRUD operations, authentication, and authorization, making your app even more powerful and flexible.

Community Resources and Courses

Learning Resources for Next.js, Prisma, and Supabase

To further enhance your skills and knowledge in building scalable applications with Next.js, Prisma, and Supabase, here are some valuable resources:

• Next.js Documentation: Next.js Docs
• Prisma Documentation: Prisma Docs
• Supabase Documentation: Supabase Docs
• Next.js and Prisma Tutorial: Next.js and Prisma Guide
• Supabase and Next.js Tutorial: Supabase and Next.js Guide
• Prisma and Supabase Tutorial: Prisma and Supabase Guide

These resources are excellent starting points for deepening your understanding and staying updated with the latest developments. Always refer to the official documentation for the most current information and best practices.

Troubleshooting and Optimization

Facing issues or looking to optimize your app’s performance? The official Supabase documentation is a treasure trove of information, offering solutions to common problems and best practices for keeping your app running smoothly.

Additionally, you can manage user roles and access settings easily through the Supabase dashboard.

The Bottom Line

Building a scalable Next.js app with Prisma and Supabase integration offers a streamlined, efficient path to creating robust, feature-rich applications. By following the steps outlined in this blog, you're well on your way to developing an app that not only meets but exceeds user expectations. The combination of Next.js, Prisma, and Supabase provides a solid foundation for growth, ensuring your app can scale seamlessly as it evolves.