etag

type Filter ¶

type Filter struct {
}

falcore/etag.Filter is a falcore.ResponseFilter that matches the response's Etag header against the request's If-None-Match header. If they match, the filter will return a '304 Not Modifed' status and no body.

Ideally, Etag filtering is performed as soon as possible as you may be able to skip generating the response body at all. Even as a last step, you will see a significant benefit if clients are well behaved.

func (f *Filter) FilterResponse(request *falcore.Request, res *http.Response)