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package http_round_tripper
type config struct {
labelValues map[string]string
}
type factoryConfig struct {
namespace string
subsystem string
requestDurationBuckets []float64
labels []string
}
// FactoryOption is used to pass options in NewFactory.
type FactoryOption func(*factoryConfig)
func applyFactoryOptions(opts []FactoryOption) factoryConfig {
config := factoryConfig{
subsystem: "http",
requestDurationBuckets: []float64{
0.005, /* 5ms */
0.025, /* 25ms */
0.1, /* 100ms */
0.5, /* 500ms */
1.0, /* 1s */
10.0, /* 10s */
30.0, /* 30s */
60.0, /* 1m */
300.0, /* 5m */
},
labels: []string{"code", "method"},
}
for _, v := range opts {
v(&config)
}
return config
}
// WithNamespace will configure the namespace to apply to the metrics.
func WithNamespace(namespace string) FactoryOption {
return func(config *factoryConfig) {
config.namespace = namespace
}
}
// WithLabels will configure additional labels to apply to the metrics.
func WithLabels(labels ...string) FactoryOption {
return func(config *factoryConfig) {
config.labels = append(config.labels, labels...)
}
}
// WithRequestDurationBuckets will configure the duration buckets used for
// incoming request histogram buckets.
func WithRequestDurationBuckets(buckets []float64) FactoryOption {
return func(config *factoryConfig) {
config.requestDurationBuckets = buckets
}
}
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