Introduction

Welcome 🙌

@rx-angular/isr manages caching of server-rendered Angular pages built with Angular SSR (@angular/ssr). It gives you an easy way to cache pages on the server and to invalidate that cache when you need to.

You register it on the server with provideISR() (standalone, recommended); IsrModule.forRoot() is the legacy NgModule equivalent.

Why?

Angular SSR does not provide an API to pass route data or information directly into the server-side rendering pipeline. @rx-angular/isr fills that gap so a route can declare whether, and for how long, it should be cached.

How?

ISR round-trips each route's revalidate value through the rendered HTML to decide what to cache. See the mechanism in How ISR works.

What's next?

• Overview: features, benefits, and where to go next.

• @rx-angular/isr API: the full export surface.

• Set up ISR: wire ISR into an existing SSR app.