types

type Backend interface {
	// BackendName returns the name of the backend.
	BackendName() string
	// SampleConfig returns the sample config for the backend.
	SampleConfig() string
	// SendMetricsAsync flushes the metrics to the backend, preparing payload synchronously but doing the send asynchronously.
	// Must not read/write MetricMap asynchronously.
	SendMetricsAsync(context.Context, *types.MetricMap, SendCallback)
	// SendEvent sends event to the backend.
	SendEvent(context.Context, *types.Event) error
}

type Factory func(*viper.Viper) (Backend, error)

type RunnableBackend interface {
	Backend
	// Run executes backend send operations. Should be started in a goroutine.
	Run(context.Context) error
}

type SendCallback func([]error)