77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
package metrics
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type MetricName string
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const (
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// Number of services. Labels: host.
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MetricServicesGauge MetricName = "gost_services"
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// Total service requests. Labels: host, service.
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MetricServiceRequestsCounter MetricName = "gost_service_requests_total"
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// Number of in-flight requests. Labels: host, service.
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MetricServiceRequestsInFlightGauge MetricName = "gost_service_requests_in_flight"
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// Request duration historgram. Labels: host, service.
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MetricServiceRequestsDurationObserver MetricName = "gost_service_request_duration_seconds"
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// Total service input data transfer size in bytes. Labels: host, service.
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MetricServiceTransferInputBytesCounter MetricName = "gost_service_transfer_input_bytes_total"
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// Total service output data transfer size in bytes. Labels: host, service.
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MetricServiceTransferOutputBytesCounter MetricName = "gost_service_transfer_output_bytes_total"
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// Chain node connect duration histogram. Labels: host, chain, node.
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MetricNodeConnectDurationObserver MetricName = "gost_chain_node_connect_duration_seconds"
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// Total service handler errors. Labels: host, service.
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MetricServiceHandlerErrorsCounter MetricName = "gost_service_handler_errors_total"
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// Total chain connect errors. Labels: host, chain, node.
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MetricChainErrorsCounter MetricName = "gost_chain_errors_total"
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)
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type Labels map[string]string
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var (
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global Metrics = Noop()
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)
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func Init(m Metrics) {
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if m != nil {
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global = m
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} else {
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global = Noop()
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}
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}
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func IsEnabled() bool {
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return global != Noop()
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}
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type Gauge interface {
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Inc()
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Dec()
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Add(float64)
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Set(float64)
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}
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type Counter interface {
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Inc()
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Add(float64)
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}
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type Observer interface {
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Observe(float64)
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}
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type Metrics interface {
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Counter(name MetricName, labels Labels) Counter
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Gauge(name MetricName, labels Labels) Gauge
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Observer(name MetricName, labels Labels) Observer
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}
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func GetCounter(name MetricName, labels Labels) Counter {
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return global.Counter(name, labels)
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}
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func GetGauge(name MetricName, labels Labels) Gauge {
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return global.Gauge(name, labels)
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}
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func GetObserver(name MetricName, labels Labels) Observer {
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return global.Observer(name, labels)
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}
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