observe-server/render/report/metric_row.go

package report

import "time"

// MetricRow is a tuple of data used to render a metric as a sparkline and
// accoutrements.
type MetricRow struct {
	ID         string  `json:"id"`
	Label      string  `json:"label"`
	Format     string  `json:"format"`
	Group      string  `json:"group"`
	Value      float64 `json:"value"`
	ValueEmpty bool    `json:"value_empty"`
	Priority   float64 `json:"priority"`
	URL        string  `json:"url"`
	// Metric     *Metric
	Metric
}

// Metric is a list of timeseries data with some metadata. Clients must use the
// Add method to add values.  Metrics are immutable.
type Metric struct {
	Samples []Sample `json:"samples,omitempty"`
	Min     float64  `json:"min"`
	Max     float64  `json:"max"`
}

// Sample is a single datapoint of a metric.
type Sample struct {
	Timestamp time.Time `json:"date"`
	Value     float64   `json:"value"`
}