Golang Manager.WatchNetworks Examples

Example #1

File: server.go Project: luxas/flannel

// GET /?next=cursor watches
// GET / retrieves all networks
func handleNetworks(ctx context.Context, sm subnet.Manager, w http.ResponseWriter, r *http.Request) {
	cursor := getCursor(r.URL)
	wr, err := sm.WatchNetworks(ctx, cursor)
	if err != nil {
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, err)
		return
	}

	switch wr.Cursor.(type) {
	case string:
	case fmt.Stringer:
		wr.Cursor = wr.Cursor.(fmt.Stringer).String()
	default:
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprint(w, fmt.Errorf("internal error: watch cursor is of unknown type"))
		return
	}

	jsonResponse(w, http.StatusOK, wr)
}