---
title: "<StackHandler />"
---

Renders the appropriate authentication or account-related component based on the current route.

For detailed usage instructions, please refer to the manual section of the [setup guide](../getting-started/setup.mdx).

## Props

<PropTable
  props={[
    {
      name: "app",
      type: "StackServerApp",
      description: "The Stack server application instance."
    },
    {
      name: "routeProps",
      type: "NextRouteProps",
      description: "The Next.js route props, usually the first argument of the page component (see below)"
    },
    {
      name: "fullPage",
      type: "boolean",
      description: "Whether to render the component in full-page mode."
    },
    {
      name: "componentProps",
      type: "{ [K in keyof Components]?: Partial<ComponentProps<Components[K]>> }",
      description: "Props to pass to the rendered components."
    }
  ]}
/>

## Example

```tsx title="app/handler/[...stack].tsx"
import { StackHandler } from '@stackframe/stack';
import { stackServerApp } from "@/stack/server";

export default function Handler(props: { params: any, searchParams: any }) {
  return (
    <StackHandler
      app={stackServerApp}
      routeProps={props}
      fullPage={true}
      componentProps={{
        SignIn: { /* SignIn component props */ },
        SignUp: { /* SignUp component props */ },
        // ... other component props
      }}
    />
  );
}
```