HTTPHandler returns http.Handler used to export metrics.

MustRegister registers the provided Metric and panics if any error occurs.

NewCounter creates a Counter metric partitioned by the given label names.

NewGauge creates a Gauge metric partitioned by the given label names.

NewHistogram creates a histogram metric partitioned by the given label names.

Register registers the provided Metric.

Counter is a Metric that represents a single numerical value that only ever goes up.

Exporter creates all kinds Metric, and return the http.Handler used to export metrics.

Gauge is a Metric that represents a single numerical value that can arbitrarily go up and down.

Histogram counts individual observations from an event or sample stream in configurable buckets.

Metric models basic operations of metric being exported.