}
	}

	authType := getRequestAuthType(r)
	var signatureVersion string
	switch authType {
	case authTypeSignedV2, authTypePresignedV2:
		signatureVersion = signV2Algorithm
	case authTypeSigned, authTypePresigned, authTypeStreamingSigned, authTypePostPolicy:
		signatureVersion = signV4Algorithm
	}

	var authtype string
	switch authType {
	case authTypePresignedV2, authTypePresigned:

func registerMetricsRouter(router *mux.Router) {
	// metrics router
	metricsRouter := router.NewRoute().PathPrefix(minioReservedBucketPath).Subrouter()
	authType := prometheusAuthType(strings.ToLower(env.Get(EnvPrometheusAuthType, string(prometheusJWT))))

	auth := AuthMiddleware
	if authType == prometheusPublic {
		auth = NoAuthMiddleware
	}
	metricsRouter.Handle(prometheusMetricsPathLegacy, auth(metricsHandler()))

    }
}

fun BuildFeatures.enablePullRequestFeature() {
    pullRequests {
        vcsRootExtId = VersionedSettingsBranch.fromDslContext().vcsRootId()
        provider = github {
            authType = token {
                token = "%github.bot-teamcity.token%"
            }
            filterAuthorRole = PullRequests.GitHubRoleFilter.EVERYBODY

	opts     promhttp.HandlerOpts
	authFn   func(http.Handler) http.Handler

	metricsData *metricsV3Collection
}

func newMetricsV3Server(authType prometheusAuthType) *metricsV3Server {
	registry := prometheus.NewRegistry()
	authFn := AuthMiddleware
	if authType == prometheusPublic {
		authFn = NoAuthMiddleware
	}

	metricGroups := newMetricGroups(registry)

	return &metricsV3Server{
		registry: registry,