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package metrics_test
import (
"fmt"
"github.com/VictoriaMetrics/metrics"
)
func ExampleCounter() {
// Define a counter in global scope.
var c = metrics.NewCounter(`metric_total{label1="value1", label2="value2"}`)
// Increment the counter when needed.
for i := 0; i < 10; i++ {
c.Inc()
}
n := c.Get()
fmt.Println(n)
// Output:
// 10
}
func ExampleCounter_vec() {
for i := 0; i < 3; i++ {
// Dynamically construct metric name and pass it to GetOrCreateCounter.
name := fmt.Sprintf(`metric_total{label1=%q, label2="%d"}`, "value1", i)
metrics.GetOrCreateCounter(name).Add(i + 1)
}
// Read counter values.
for i := 0; i < 3; i++ {
name := fmt.Sprintf(`metric_total{label1=%q, label2="%d"}`, "value1", i)
n := metrics.GetOrCreateCounter(name).Get()
fmt.Println(n)
}
// Output:
// 1
// 2
// 3
}
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