Method parseMatchersParam

web/api/v1/api.go:2302–2318

(matchers []string)

}

func (api *API) parseMatchersParam(matchers []string) ([][]*labels.Matcher, error) {
	matcherSets, err := api.parser.ParseMetricSelectors(matchers)
	if err != nil {
		return nil, err
	}

OUTER:
	for _, ms := range matcherSets {
		for _, lm := range ms {
			if lm != nil && !lm.Matches("") {
				continue OUTER
			}
		}
		return nil, errors.New("match[] must contain at least one non-empty matcher")
	}
	return matcherSets, nil
}

// parseLimitParam returning 0 means no limit is to be applied.
func parseLimitParam(limitStr string) (limit int, err error) {