Web sockets don't work out of the box on serverless architecture, so you have to rely on third-party or external service. But when deploying to Fly.io, you don't have to. Let's take a look at a sample Next.js app to see this in action.

Demo repository:
https://github.com/fly-apps/nextjs-websockets

Fly.io offers insights into edge computing, serverless architecture, and global content delivery network (CDN), providing documentation, tutorials, and best practices for deploying and scaling applications at the network edge. By exploring Fly.io's curated content, developers can learn about Fly's edge computing platform, distributed application runtime, and HTTP/2 load balancing for building fast, secure, and scalable web applications. Whether you're optimizing latency for global users, offloading compute-intensive tasks, or deploying microservices, Fly.io offers resources to supercharge your application performance and reliability.

Fly.io

Learn how to implement WebSockets in a Next.js application without using third-party services by leveraging traditional servers on Fly.io. The post explains the setup and configuration required to create a custom server for handling WebSocket connections, illustrated with a simple chat application example.

Using web sockets on Next.js | NO third party solution