bootstrap(_:)

bootstrap is an one-time configuration function which globally selects the desired metrics backend implementation. bootstrap can be called at maximum once in any given program, calling it more than once will lead to undefined behavior, most likely a crash.

Metrics.swift:598
static func bootstrap(_ factory: MetricsFactory)

Parameters

factory

A factory that given an identifier produces instances of metrics handlers such as CounterHandler, RecorderHandler and TimerHandler.