28 lines
663 B
Go
28 lines
663 B
Go
package metrics_test
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import (
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"fmt"
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"time"
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"go.unistack.org/metrics"
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)
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func ExampleHistogram() {
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// Define a histogram in global scope.
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var h = metrics.NewHistogram(`request_duration_seconds{path="/foo/bar"}`)
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// Update the histogram with the duration of processRequest call.
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startTime := time.Now()
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processRequest()
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h.UpdateDuration(startTime)
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}
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func ExampleHistogram_vec() {
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for i := 0; i < 3; i++ {
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// Dynamically construct metric name and pass it to GetOrCreateHistogram.
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name := fmt.Sprintf(`response_size_bytes{path=%q}`, "/foo/bar")
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response := processRequest()
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metrics.GetOrCreateHistogram(name).Update(float64(len(response)))
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}
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}
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