resource

type Resource struct {
	// RequestURL is the location to request this resource.
	RequestURL *url.URL

	// RedirectURL is non-nil when RequestURL gets redirected, and the value
	// represents the location after the redirect.
	//
	// All other fields, except RequestURL, should be unset when RedirectURL
	// has a non-nil value.
	RedirectURL *url.URL

	// PhysicalURL is the physical location of this resource. It is usually
	// identical to RequestURL, but can be different when the web server has
	// URL rewriting mechanism (e.g. to serve "index.html").
	//
	// See also: Package urlrewrite.
	PhysicalURL *url.URL

	// ValidityURL represents the location of the validity data.
	ValidityURL *url.URL

	// Exchange represents a signed exchange generated for this resource.
	//
	// Exchange should be set through the SetExchange method to keep in sync
	// with the Integrity field.
	Exchange *signedexchange.Exchange

	// Integrity represents the integirty of HTTP response headers for this
	// resource. Technically, it is the hash of the CBOR representation of
	// the response headers in the signed exchange, prefixed by the algorithm
	// and base64-encoded ("sha256-wZp5f6H9...").
	//
	// Integrity is set by the SetExchange method.
	Integrity string
}