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package influx
import (
"fmt"
"regexp"
influxdb "github.com/influxdata/influxdb1-client/v2"
"github.com/go-kit/log"
)
func ExampleCounter() {
in := New(map[string]string{"a": "b"}, influxdb.BatchPointsConfig{}, log.NewNopLogger())
counter := in.NewCounter("influx_counter")
counter.Add(10)
counter.With("error", "true").Add(1)
counter.With("error", "false").Add(2)
counter.Add(50)
client := &bufWriter{}
in.WriteTo(client)
expectedLines := []string{
`(influx_counter,a=b count=60) [0-9]{19}`,
`(influx_counter,a=b,error=true count=1) [0-9]{19}`,
`(influx_counter,a=b,error=false count=2) [0-9]{19}`,
}
if err := extractAndPrintMessage(expectedLines, client.buf.String()); err != nil {
fmt.Println(err.Error())
}
// Output:
// influx_counter,a=b count=60
// influx_counter,a=b,error=true count=1
// influx_counter,a=b,error=false count=2
}
func ExampleGauge() {
in := New(map[string]string{"a": "b"}, influxdb.BatchPointsConfig{}, log.NewNopLogger())
gauge := in.NewGauge("influx_gauge")
gauge.Set(10)
gauge.With("error", "true").Set(2)
gauge.With("error", "true").Set(1)
gauge.With("error", "false").Set(2)
gauge.Set(50)
gauge.With("test", "true").Set(1)
gauge.With("test", "true").Add(1)
client := &bufWriter{}
in.WriteTo(client)
expectedLines := []string{
`(influx_gauge,a=b,test=true value=2) [0-9]{19}`,
`(influx_gauge,a=b value=50) [0-9]{19}`,
`(influx_gauge,a=b,error=true value=1) [0-9]{19}`,
`(influx_gauge,a=b,error=false value=2) [0-9]{19}`,
}
if err := extractAndPrintMessage(expectedLines, client.buf.String()); err != nil {
fmt.Println(err.Error())
}
// Output:
// influx_gauge,a=b,test=true value=2
// influx_gauge,a=b value=50
// influx_gauge,a=b,error=true value=1
// influx_gauge,a=b,error=false value=2
}
func ExampleHistogram() {
in := New(map[string]string{"foo": "alpha"}, influxdb.BatchPointsConfig{}, log.NewNopLogger())
histogram := in.NewHistogram("influx_histogram")
histogram.Observe(float64(10))
histogram.With("error", "true").Observe(float64(1))
histogram.With("error", "false").Observe(float64(2))
histogram.Observe(float64(50))
client := &bufWriter{}
in.WriteTo(client)
expectedLines := []string{
`(influx_histogram,foo=alpha p50=10,p90=50,p95=50,p99=50) [0-9]{19}`,
`(influx_histogram,error=true,foo=alpha p50=1,p90=1,p95=1,p99=1) [0-9]{19}`,
`(influx_histogram,error=false,foo=alpha p50=2,p90=2,p95=2,p99=2) [0-9]{19}`,
}
if err := extractAndPrintMessage(expectedLines, client.buf.String()); err != nil {
fmt.Println(err.Error())
}
// Output:
// influx_histogram,foo=alpha p50=10,p90=50,p95=50,p99=50
// influx_histogram,error=true,foo=alpha p50=1,p90=1,p95=1,p99=1
// influx_histogram,error=false,foo=alpha p50=2,p90=2,p95=2,p99=2
}
func extractAndPrintMessage(expected []string, msg string) error {
for _, pattern := range expected {
re := regexp.MustCompile(pattern)
match := re.FindStringSubmatch(msg)
if len(match) != 2 {
return fmt.Errorf("pattern not found! {%s} [%s]: %v\n", pattern, msg, match)
}
fmt.Println(match[1])
}
return nil
}
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