Building Real-Time Notifications with Upstash Redis, Next.js Server Actions and Vercel

The blog post outlines the process of building real-time notifications using Server-Sent Events (SSE) with Upstash Redis, Next.js Server Actions, and Vercel. It explains the setup required for Upstash Redis, including creating a database and configuring environment variables, before detailing the project's repository structure and the role of message channels in Upstash Redis for real-time communication. The post further describes how to create an SSE API in a Next.js App Router, publish messages using Next.js Server Actions, and set up a frontend interface to handle these notifications, utilizing React's useFormStatus hook to manage form submissions. Additionally, it provides a method for establishing a persistent connection to the SSE API, ensuring continuous data flow even in the event of errors or disconnections, and concludes with instructions for deploying the project to Vercel.