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Feaure/add status override from context #46

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2309c80
add StatusOverrideFromContext
May 4, 2021
5646ff6
multi-status support
May 4, 2021
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15 changes: 15 additions & 0 deletions middleware.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package ginprometheus

import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"os"
Expand Down Expand Up @@ -101,6 +102,8 @@ type Prometheus struct {

// gin.Context string to use as a prometheus URL label
URLLabelFromContext string
//read value to override api status ( first match in array)
StatusOverrideFromContext []string
}

// PrometheusPushGateway contains the configuration for pushing to a Prometheus pushgateway (optional)
Expand Down Expand Up @@ -367,6 +370,18 @@ func (p *Prometheus) HandlerFunc() gin.HandlerFunc {
c.Next()

status := strconv.Itoa(c.Writer.Status())

//iterate over each context key to find first match
if len(p.StatusOverrideFromContext) > 0 {
for _, v := range p.StatusOverrideFromContext {
statusFromContext, found := c.Get(v)
if found {
status = fmt.Sprintf("%v", statusFromContext)
break
}
}
}

elapsed := float64(time.Since(start)) / float64(time.Second)
resSz := float64(c.Writer.Size())

Expand Down