We built the open source real-time server, AnyCable, that deploys to Fly.io in one command (and configures itself), and the SDK for serverless JS/TS that allows you to build real-time features without any 3d-party PaaS. We call it a real-time server, because it has WebSockets and more, and it’s easy to run and scale.

Here’s all you need to add real-time to your Next.js/Vercel app:

– Deploy AnyCable to Fly.io with one command (see the docs)

– In your Vercel app add one serverless function (copy from docs)

– That’s it! Now you can write our business logic using AnyCable Serverless SDK :https://github.com/anycable/anycable-serverless-js

Benefits:

– Pay for the gas, not the taxi (unlike the PaaS)

– Own and control data

– Get as much flexibility to build out features as possible

– No vendor lock because it's open source

– Proven and tested abstractions–channels and subscriptions

– Guaranteed delivery and restoration of any messages lost due to connectivity issues

– Stability: we ensure auto scaling, smooth reconnection on deployment, fallbacks from WebSockets to other transport, and many more

– Integration with GraphQL ecosystem

Demo Next.js+Vercel+AnyCable chat app:

- live app: https://vercel-anycable-demo.vercel.app

- source code: https://github.com/anycable/vercel-anycable-demo

AnyCable: https://github.com/anycable/anycable

We hope you will give it a try and tell us what you think!