88 lines
1.9 KiB
Go
88 lines
1.9 KiB
Go
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package api
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import (
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"io/ioutil"
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"time"
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)
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// MetricsSummary holds a roll-up of metrics info for a given interval
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type MetricsSummary struct {
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Timestamp string
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Gauges []GaugeValue
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Points []PointValue
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Counters []SampledValue
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Samples []SampledValue
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}
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type GaugeValue struct {
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Name string
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Hash string `json:"-"`
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Value float32
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Labels []Label `json:"-"`
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DisplayLabels map[string]string `json:"Labels"`
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}
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type PointValue struct {
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Name string
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Points []float32
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}
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type SampledValue struct {
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Name string
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Hash string `json:"-"`
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*AggregateSample
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Mean float64
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Stddev float64
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Labels []Label `json:"-"`
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DisplayLabels map[string]string `json:"Labels"`
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}
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// AggregateSample is used to hold aggregate metrics
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// about a sample
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type AggregateSample struct {
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Count int // The count of emitted pairs
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Rate float64 // The values rate per time unit (usually 1 second)
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Sum float64 // The sum of values
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SumSq float64 `json:"-"` // The sum of squared values
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Min float64 // Minimum value
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Max float64 // Maximum value
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LastUpdated time.Time `json:"-"` // When value was last updated
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}
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type Label struct {
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Name string
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Value string
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}
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// Metrics returns a slice of bytes containing metrics, optionally formatted as either json or prometheus
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func (op *Operator) Metrics(q *QueryOptions) ([]byte, error) {
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if q == nil {
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q = &QueryOptions{}
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}
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metricsReader, err := op.c.rawQuery("/v1/metrics", q)
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if err != nil {
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return nil, err
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}
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metricsBytes, err := ioutil.ReadAll(metricsReader)
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if err != nil {
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return nil, err
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}
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return metricsBytes, nil
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}
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// MetricsSummary returns a MetricsSummary struct and query metadata
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func (op *Operator) MetricsSummary(q *QueryOptions) (*MetricsSummary, *QueryMeta, error) {
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var resp *MetricsSummary
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qm, err := op.c.query("/v1/metrics", &resp, q)
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if err != nil {
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return nil, nil, err
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}
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return resp, qm, nil
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}
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