datadog

Documentation

Overview

Package datadog implements the Datadog APM traces compatible TextMapPropagator.

Index

• func ToDatadogID(otelID string) string
• func ToOpenTelemetryID(ddID string) (string, error)
• type Propagator
  • func (Propagator) Extract(ctx context.Context, carrier propagation.TextMapCarrier) context.Context
  • func (Propagator) Fields() []string
  • func (Propagator) Inject(ctx context.Context, carrier propagation.TextMapCarrier)

Examples

• Propagator

Functions

func ToDatadogID

func ToDatadogID(otelID string) string

ToDatadogID converts the ID that comes from OpenTelemetry SDK to Datadog ID.

func ToOpenTelemetryID

func ToOpenTelemetryID(ddID string) (string, error)

ToOpenTelemetryID converts the ID that comes from Datadog APM traces to OpenTelemetry ID.

It may fail if the ID has invalid format.

Types

type Propagator

type Propagator struct{}

Propagator serializes Span Context to/from Datadog APM traces headers.

Example

package main

import (
	"github.com/aereal/otel-propagators/datadog"
	"go.opentelemetry.io/otel"
)

func main() {
	otel.SetTextMapPropagator(datadog.Propagator{})
}

func (Propagator) Extract

func (Propagator) Extract(ctx context.Context, carrier propagation.TextMapCarrier) context.Context

Extract gets a context from the carrier if it contains Datadog APM traces headers.

func (Propagator) Fields

func (Propagator) Fields() []string

Fields returns a list of fields used by HTTPTextFormat.

func (Propagator) Inject

func (Propagator) Inject(ctx context.Context, carrier propagation.TextMapCarrier)

Inject injects a context to the carreir following Datadog APM traces format.