:sig
COMPONENT(Request& context)

:desc
Defines the default component entrypoint for the current `.uce` file.

`component()` and `component_render()` invoke `COMPONENT(Request& context)` by default. Named component entrypoints use `COMPONENT:NAME(Request& context)`.

This keeps page rendering and component rendering separate:

- direct HTTP requests call `RENDER(Request& context)`
- WebSocket messages call `WS(Request& context)`
- component helpers call `COMPONENT(Request& context)` or `COMPONENT:NAME(Request& context)`

A file intended only for component reuse can define `COMPONENT()` without defining `RENDER()`.

Inside component handlers, props arrive through `context.call`.

When you call `component(":NAME", props, context)` or `component_render(":NAME", props, context)`, the runtime resolves `:NAME` against the current `.uce` file instead of requiring the file name again.

Examples:
`COMPONENT(Request& context)`
`{`
`    <><section><?: component(":BODY", context.call, context) ?></section></>`
`}`

`COMPONENT:BODY(Request& context)`
`{`
`    <><p><?= context.call["body"] ?></p></>`
`}`

:see
>component
>component_render
>1_RENDER
>1_WS

:related
**PHP:** View partials, reusable include files, small template helpers, and server-side component-like rendering patterns
**JavaScript / Node.js:** Reusable component functions, React or Vue components, and server-rendered partials