Method rules

web/api/v1/api.go:1590–1748

(r *http.Request)

}

func (api *API) rules(r *http.Request) apiFuncResult {
	if err := r.ParseForm(); err != nil {
		return apiFuncResult{nil, &apiError{errorBadData, fmt.Errorf("error parsing form values: %w", err)}, nil, nil}
	}

	queryFormToSet := func(values []string) map[string]struct{} {
		set := make(map[string]struct{}, len(values))
		for _, v := range values {
			set[v] = struct{}{}
		}
		return set
	}

	rnSet := queryFormToSet(r.Form["rule_name[]"])
	rgSet := queryFormToSet(r.Form["rule_group[]"])
	fSet := queryFormToSet(r.Form["file[]"])

	matcherSets, err := api.parseMatchersParam(r.Form["match[]"])
	if err != nil {
		return apiFuncResult{nil, &apiError{errorBadData, err}, nil, nil}
	}

	ruleGroups := api.rulesRetriever(r.Context()).RuleGroups()
	res := &RuleDiscovery{RuleGroups: make([]*RuleGroup, 0, len(ruleGroups))}
	typ := strings.ToLower(r.URL.Query().Get("type"))

	if typ != "" && typ != "alert" && typ != "record" {
		return invalidParamError(fmt.Errorf("not supported value %q", typ), "type")
	}

	returnAlerts := typ == "" || typ == "alert"
	returnRecording := typ == "" || typ == "record"

	excludeAlerts, err := parseExcludeAlerts(r)
	if err != nil {
		return invalidParamError(err, "exclude_alerts")
	}

	maxGroups, nextToken, parseErr := parseListRulesPaginationRequest(r)
	if parseErr != nil {
		return *parseErr
	}

	rgs := make([]*RuleGroup, 0, len(ruleGroups))

	foundToken := false

	for _, grp := range ruleGroups {
		if maxGroups > 0 && nextToken != "" && !foundToken {
			if nextToken != getRuleGroupNextToken(grp.File(), grp.Name()) {
				continue
			}
			foundToken = true
		}

		if len(rgSet) > 0 {
			if _, ok := rgSet[grp.Name()]; !ok {
				continue