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Extra labels may be added to the imported data by passing `extra_label=name=value` query args. Multiple query args may be passed in order to add multiple extra labels. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/719
26 lines
668 B
Go
26 lines
668 B
Go
package common
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import (
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"fmt"
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"net/http"
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"strings"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
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)
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// GetExtraLabels extracts name:value labels from `extra_label=name=value` query args from req.
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func GetExtraLabels(req *http.Request) ([]prompbmarshal.Label, error) {
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q := req.URL.Query()
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var result []prompbmarshal.Label
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for _, label := range q["extra_label"] {
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tmp := strings.SplitN(label, "=", 2)
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if len(tmp) != 2 {
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return nil, fmt.Errorf("`extra_label` query arg must have the format `name=value`; got %q", label)
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}
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result = append(result, prompbmarshal.Label{
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Name: tmp[0],
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Value: tmp[1],
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})
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}
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return result, nil
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}
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