global

Documentation

Index

• func ErrorHandler() otel.ErrorHandler
• func Handle(err error)
• func Meter(instrumentationName string, opts ...metric.MeterOption) metric.Meter
• func MeterProvider() metric.Provider
• func Propagators() propagation.Propagators
• func SetErrorHandler(h otel.ErrorHandler)
• func SetMeterProvider(mp metric.Provider)
• func SetPropagators(p propagation.Propagators)
• func SetTraceProvider(tp trace.Provider)
• func TraceProvider() trace.Provider
• func Tracer(name string) trace.Tracer

Functions

func ErrorHandler

func ErrorHandler() otel.ErrorHandler

ErrorHandler returns the global ErrorHandler instance. If no ErrorHandler instance has been set (`SetErrorHandler`), the default ErrorHandler which logs errors to STDERR is returned.

func Handle

func Handle(err error)

Handle is a convience function for ErrorHandler().Handle(err)

func Meter

func Meter(instrumentationName string, opts ...metric.MeterOption) metric.Meter

Meter creates an implementation of the Meter interface from the global Provider. The instrumentationName must be the name of the library providing instrumentation. This name may be the same as the instrumented code only if that code provides built-in instrumentation. If the instrumentationName is empty, then a implementation defined default name will be used instead.

This is short for MeterProvider().Meter(name)

func MeterProvider

func MeterProvider() metric.Provider

MeterProvider returns the registered global meter provider. If none is registered then a default meter provider is returned that forwards the Meter interface to the first registered Meter.

Use the meter provider to create a named meter. E.g.

meter := global.MeterProvider().Meter("example.com/foo")

or

meter := global.Meter("example.com/foo")

func Propagators

func Propagators() propagation.Propagators

Propagators returns the registered global propagators instance. If none is registered then an instance of propagators.NoopPropagators is returned.

func SetErrorHandler

func SetErrorHandler(h otel.ErrorHandler)

SetErrorHandler sets the global ErrorHandler to be h.

func SetMeterProvider

func SetMeterProvider(mp metric.Provider)

SetMeterProvider registers `mp` as the global meter provider.

func SetPropagators

func SetPropagators(p propagation.Propagators)

SetPropagators registers `p` as the global propagators instance.

func SetTraceProvider

func SetTraceProvider(tp trace.Provider)

SetTraceProvider registers `tp` as the global trace provider.

func TraceProvider

func TraceProvider() trace.Provider

TraceProvider returns the registered global trace provider. If none is registered then an instance of trace.NoopProvider is returned.

Use the trace provider to create a named tracer. E.g.

tracer := global.TraceProvider().Tracer("example.com/foo")

or

tracer := global.Tracer("example.com/foo")

func Tracer

func Tracer(name string) trace.Tracer

Tracer creates a named tracer that implements Tracer interface. If the name is an empty string then provider uses default name.

This is short for TraceProvider().Tracer(name)