package trace

import "cloud.google.com/go/internal/trace"

Index ¶

• func EndSpan(ctx context.Context, err error)
• func IsOpenCensusTracingEnabled() bool
• func IsOpenTelemetryTracingEnabled() bool
• func StartSpan(ctx context.Context, name string) context.Context
• func TracePrintf(ctx context.Context, attrMap map[string]interface{}, format string, args ...interface{})

Functions ¶

func EndSpan ¶

func EndSpan(ctx context.Context, err error)

EndSpan ends a span with the given error. If IsOpenCensusTracingEnabled returns true, the span will be an OpenCensus span. If IsOpenTelemetryTracingEnabled returns true, the span will be an OpenTelemetry span. Set the environment variable GOOGLE_API_GO_EXPERIMENTAL_TELEMETRY_PLATFORM_TRACING to the case-insensitive value "opentelemetry" before loading the package to use OpenTelemetry tracing. The default will remain OpenCensus until [TBD], at which time the default will switch to "opentelemetry" and explicitly setting the environment variable to "opencensus" will be required to continue using OpenCensus tracing.

func IsOpenCensusTracingEnabled ¶

func IsOpenCensusTracingEnabled() bool

IsOpenCensusTracingEnabled returns true if the environment variable GOOGLE_API_GO_EXPERIMENTAL_TELEMETRY_PLATFORM_TRACING is NOT set to the case-insensitive value "opentelemetry".

func IsOpenTelemetryTracingEnabled ¶

func IsOpenTelemetryTracingEnabled() bool

IsOpenTelemetryTracingEnabled returns true if the environment variable GOOGLE_API_GO_EXPERIMENTAL_TELEMETRY_PLATFORM_TRACING is set to the case-insensitive value "opentelemetry".

func StartSpan ¶

func StartSpan(ctx context.Context, name string) context.Context

StartSpan adds a span to the trace with the given name. If IsOpenCensusTracingEnabled returns true, the span will be an OpenCensus span. If IsOpenTelemetryTracingEnabled returns true, the span will be an OpenTelemetry span. Set the environment variable GOOGLE_API_GO_EXPERIMENTAL_TELEMETRY_PLATFORM_TRACING to the case-insensitive value "opentelemetry" before loading the package to use OpenTelemetry tracing. The default will remain OpenCensus until [TBD], at which time the default will switch to "opentelemetry" and explicitly setting the environment variable to "opencensus" will be required to continue using OpenCensus tracing.

func TracePrintf ¶

func TracePrintf(ctx context.Context, attrMap map[string]interface{}, format string, args ...interface{})

TracePrintf retrieves the current OpenCensus or OpenTelemetry span from context, then: * calls Span.Annotatef if OpenCensus is enabled; or * calls Span.AddEvent if OpenTelemetry is enabled.

If IsOpenCensusTracingEnabled returns true, the expected span must be an OpenCensus span. If IsOpenTelemetryTracingEnabled returns true, the expected span must be an OpenTelemetry span. Set the environment variable GOOGLE_API_GO_EXPERIMENTAL_TELEMETRY_PLATFORM_TRACING to the case-insensitive value "opentelemetry" before loading the package to use OpenTelemetry tracing. The default will remain OpenCensus until [TBD], at which time the default will switch to "opentelemetry" and explicitly setting the environment variable to "opencensus" will be required to continue using OpenCensus tracing.

Source Files ¶

trace.go