otelslog

README

otelslog

log/slog handler for OTel

Quick start

Configure open-telemetry provider first. See example here

Then configure slog logger with otelslog handler:

package main

import (
	"context"
	"github.com/landmaj/opentelemetry-go/otelslog"
	"log/slog"
)

func main() {
	// configure logger provider
	loggerProvider :=  ...

	otelLogger := slog.New(otelslog.NewOtelHandler(loggerProvider, &otelslog.HandlerOptions{}))

	//configure default logger
	slog.SetDefault(otelLogger)

	doSomething(ctx)
}

// call function with opentelemetry context provided
func doSomething(ctx context.Context) {
	slog.InfoContext(ctx, "hello", slog.String("myKey", "myValue"))
}

Documentation

Index

• func Version() string
• type HandlerOptions
• type OtelHandler
  • func NewOtelHandler(loggerProvider otel.LoggerProvider, opts *HandlerOptions) *OtelHandler
  • func (o OtelHandler) Enabled(ctx context.Context, level slog.Level) bool
  • func (o OtelHandler) Handle(ctx context.Context, record slog.Record) error
  • func (o OtelHandler) WithAttrs(attrs []slog.Attr) slog.Handler
  • func (o OtelHandler) WithGroup(name string) slog.Handler

Functions

func Version

func Version() string

Version is the current release version of OpenTelemetry Slog in use.

Types

type HandlerOptions

type HandlerOptions struct {
	Level slog.Leveler
}

HandlerOptions are options for a OtelHandler. A zero HandlerOptions consists entirely of default values.

type OtelHandler

type OtelHandler struct {
	// contains filtered or unexported fields
}

OtelHandler is a Handler that writes Records to OTLP

func NewOtelHandler

func NewOtelHandler(loggerProvider otel.LoggerProvider, opts *HandlerOptions) *OtelHandler

NewOtelHandler creates a OtelHandler that writes to otlp, using the given options. If opts is nil, the default options are used.

func (OtelHandler) Enabled

func (o OtelHandler) Enabled(ctx context.Context, level slog.Level) bool

func (OtelHandler) Handle

func (o OtelHandler) Handle(ctx context.Context, record slog.Record) error

func (OtelHandler) WithAttrs

func (o OtelHandler) WithAttrs(attrs []slog.Attr) slog.Handler

func (OtelHandler) WithGroup

func (o OtelHandler) WithGroup(name string) slog.Handler