jsschools

Astro.cookies

Astro.cookies provides a typed API to read, set, and delete HTTP cookies.

Since Astro 1.4 Spec ↗

Syntax

Astro.cookies.set('theme', 'dark')

Returns

AstroCookies — A cookie manager with get, set, has, delete, and headers methods.

Examples

---
const theme = Astro.cookies.get('theme')?.value ?? 'light';
Astro.cookies.set('seen', 'true', { path: '/', httpOnly: true });
---
<html data-theme={theme}></html>
Output 
Reads the saved theme cookie and sets a server-side seen flag for future visits.

Notes

Setting or deleting cookies only takes effect in on-demand (SSR) rendered routes. cookies.get() returns an object with .value, .json(), and .number() helpers. Use httpOnly and secure for sensitive values.

See also