42 lines
830 B
Go
42 lines
830 B
Go
|
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
|
||
|
|
}
|