Function isReplayable

http_request.go:124–138

(r *http.Request)

}

func isReplayable(r *http.Request) bool {
	if r.Body == nil || r.Body == NoBody || r.GetBody != nil {
		switch valueOrDefault(r.Method, "GET") {
		case "GET", "HEAD", "OPTIONS", "TRACE":
			return true
		}
		// The Idempotency-Key, while non-standard, is widely used to
		// mean a POST or other request is idempotent. See
		// https://golang.org/issue/19943#issuecomment-421092421
		if headerHas(r.Header, "Idempotency-Key") || headerHas(r.Header, "X-Idempotency-Key") {
			return true
		}
	}
	return false
}

func reqExpectsContinue(r *http.Request) bool {
	return hasToken(headerGet(r.Header, "Expect"), "100-continue")