Method Execute

handlers/processing/handler.go:67–94

Execute handles the image processing request

(
	reqID string,
	rw server.ResponseWriter,
	req *http.Request,
)

// Execute handles the image processing request
func (h *Handler) Execute(
	reqID string,
	rw server.ResponseWriter,
	req *http.Request,
) *server.Error {
	// Increment the number of requests in progress
	h.Monitoring().Stats().IncRequestsInProgress()
	defer h.Monitoring().Stats().DecRequestsInProgress()

	// Verify URL signature and extract image url and processing options
	r, err := h.newRequest(req)
	if err != nil {
		return err
	}

	// if processing options indicate raw image streaming, stream it and return
	if r.opts.GetBool(keys.Raw, false) {
		return h.stream.Execute(req, r.imageURL, reqID, r.opts, rw)
	}

	r.reqID = reqID
	r.req = req
	r.rw = rw
	r.config = h.config
	r.ch = h.ConditionalHeaders().NewRequest(r.req)

	return r.execute()
}

// newRequest extracts image url and processing options from request URL and verifies them
func (h *Handler) newRequest(req *http.Request) (*request, *server.Error) {