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feat(log,metrics): add log and metrics modules. (#63)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,11 +1,11 @@ | ||
| package commands | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
| ) | ||
|
|
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| func ExitOnError(err error) { | ||
| fmt.Printf("immortal error: %s\n", err.Error()) //nolint | ||
| log.Printf("immortal error: %s\n", err.Error()) //nolint | ||
| os.Exit(1) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package metrics | ||
|
|
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| import ( | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/client_golang/prometheus/promauto" | ||
| ) | ||
|
|
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| type Metrics struct { | ||
| EventsTotal *prometheus.CounterVec | ||
| RequestsTotal *prometheus.CounterVec | ||
| MessagesTotal prometheus.Counter | ||
| Subscriptions prometheus.Gauge | ||
| Connections prometheus.Gauge | ||
| EventLaency prometheus.Histogram | ||
| RequestLatency prometheus.Histogram | ||
| } | ||
|
|
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| func New() *Metrics { | ||
| eventsT := promauto.NewCounterVec(prometheus.CounterOpts{ | ||
| Name: "events_total", | ||
| Help: "number of events sent to the relay.", | ||
| }, []string{"status"}) | ||
|
|
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| reqsT := promauto.NewCounterVec(prometheus.CounterOpts{ | ||
| Name: "requests_total", | ||
| Help: "number of REQ messages sent to relay.", | ||
| }, []string{"status"}) | ||
|
|
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| msgT := promauto.NewCounter(prometheus.CounterOpts{ | ||
| Name: "messages_total", | ||
| Help: "number of messages received.", | ||
| }) | ||
|
|
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| subs := promauto.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "subscriptions", | ||
| Help: "number of open subscription.", | ||
| }) | ||
|
|
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| conns := promauto.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "connections", | ||
| Help: "number of open websocket connections.", | ||
| }) | ||
|
|
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| eventL := promauto.NewHistogram(prometheus.HistogramOpts{ | ||
| Name: "event_latency", | ||
| Help: "time needed to request to an EVENT message.", | ||
| }) | ||
|
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| reqL := promauto.NewHistogram(prometheus.HistogramOpts{ | ||
| Name: "requset_latency", | ||
| Help: "time needed to request to a REQ message.", | ||
| }) | ||
|
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| return &Metrics{ | ||
| EventsTotal: eventsT, | ||
| Connections: conns, | ||
| MessagesTotal: msgT, | ||
| Subscriptions: subs, | ||
| RequestsTotal: reqsT, | ||
| EventLaency: eventL, | ||
| RequestLatency: reqL, | ||
| } | ||
| } |
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