code: func parseCamliPath(path string) (action string, err error) {
  	camIdx := strings.Index(path, camliPrefix)
  	if camIdx == -1 {
  		return "", ErrCamliPath
  	}
  	action = path[camIdx+len(camliPrefix):]
  	return
  }
docs: // parseCamliPath looks for "/camli/" in the path and returns
  // what follows it (the action).