copyRequest() — astro Function Reference

Architecture documentation for the copyRequest() function in rewrite.ts from the astro codebase.

Function typescript CoreAstro CoreMiddleware

Entity Profile

CoreAstro→ CoreMiddleware→ copyRequest() — astro Function Reference

Dependency Diagram

graph TD
  93d8ff95_1c45_20a8_a760_1125b2b74931["copyRequest()"]
  67024343_d7f2_f928_d5b2_367cfa846343["rewrite.ts"]
  93d8ff95_1c45_20a8_a760_1125b2b74931 -->|defined in| 67024343_d7f2_f928_d5b2_367cfa846343
  style 93d8ff95_1c45_20a8_a760_1125b2b74931 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/astro/src/core/routing/rewrite.ts lines 156–189

export function copyRequest(
	newUrl: URL,
	oldRequest: Request,
	isPrerendered: boolean,
	logger: Logger,
	routePattern: string,
): Request {
	if (oldRequest.bodyUsed) {
		throw new AstroError(AstroErrorData.RewriteWithBodyUsed);
	}
	return createRequest({
		url: newUrl,
		method: oldRequest.method,
		body: oldRequest.body,
		isPrerendered,
		logger,
		headers: isPrerendered ? {} : oldRequest.headers,
		routePattern,
		init: {
			referrer: oldRequest.referrer,
			referrerPolicy: oldRequest.referrerPolicy,
			mode: oldRequest.mode,
			credentials: oldRequest.credentials,
			cache: oldRequest.cache,
			redirect: oldRequest.redirect,
			integrity: oldRequest.integrity,
			signal: oldRequest.signal,
			keepalive: oldRequest.keepalive,
			// https://fetch.spec.whatwg.org/#dom-request-duplex
			// @ts-expect-error It isn't part of the types, but undici accepts it and it allows to carry over the body to a new request
			duplex: 'half',
		},
	});
}