onRequest() — astro Function Reference

Architecture documentation for the onRequest() function in middleware.js from the astro codebase.

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IntegrationAdapters→ SsrAdapters→ onRequest() — astro Function Reference

Dependency Diagram

graph TD
  66b589b2_3c4d_5f3c_0837_74d0c2af4c0c["onRequest()"]
  d313a7b6_b0a2_c5a4_523e_bb8dea1b5f34["middleware.js"]
  66b589b2_3c4d_5f3c_0837_74d0c2af4c0c -->|defined in| d313a7b6_b0a2_c5a4_523e_bb8dea1b5f34
  style 66b589b2_3c4d_5f3c_0837_74d0c2af4c0c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/astro/test/fixtures/i18n-routing-manual/src/middleware.js lines 6–20

export const onRequest = defineMiddleware(async (context, next) => {
	if (allowList.has(context.url.pathname)) {
		return await next();
	}
	if (requestHasLocale(context)) {
		return await next();
	}

	if (context.url.pathname === '/' || context.url.pathname === '/redirect-me') {
		return redirectToDefaultLocale(context);
	}
	return new Response(null, {
		status: 404,
	});
});