o11y

Aug 11, 2026

Changes in this version

+ const DefaultMaxUniqueCollections

+ const MaxBaggageAttributeKeys

+ const MaxBaggageKeyBytes

+ const MaxBaggageValueBytes

+ const UserNameKey

+ func ContextWithBaggageValue(ctx context.Context, key, value string) (context.Context, error)

+ func ContextWithoutBaggageValues(ctx context.Context, keys ...string) context.Context

type Option

+ func WithBaggageAttributes(keys ...string) Option

+ func WithMaxUniqueCollections(n int) Option

Jun 8, 2026

Changes in this version

+ func ContextWithUser(ctx context.Context, name string) (context.Context, error)

+ func SetUser(ctx context.Context, name string)

+ func UserName(name string) slog.Attr

type Option

+ func WithSamplingRatio(ratio float64) Option

+ func WithTraceSampler(sampler sdktrace.Sampler) Option

+ func WithUserBaggage() Option

May 22, 2026

Changes in this version

type Option

+ func WithExemplars(enabled bool) Option

May 22, 2026

Changes in this version

+ const DefaultMaxUniqueRoutes

+ const DefaultMetricsAddr

+ func DefaultLatencyBuckets() []float64

+ type Config struct

+ type FeatureToggles struct

+ Log bool

+ Metrics bool

+ Profiling bool

+ Trace bool

+ type Option func(*Config)

+ func WithDisableDefaultViews() Option

+ func WithEnvironment(env string) Option

+ func WithExtraHTTPServerAttributeKeys(keys ...string) Option

+ func WithHistogramBuckets(buckets []float64) Option

+ func WithLogEnabled(enabled bool) Option

+ func WithLogLevel(level slog.Level) Option

+ func WithMaxUniqueRoutes(n int) Option

+ func WithMetricsAddr(addr string) Option

+ func WithMetricsEnabled(enabled bool) Option

+ func WithMetricsOTLPEndpoint(endpoint string) Option

+ func WithOTLPEndpoint(endpoint string) Option

+ func WithOTLPHeaders(headers map[string]string) Option

+ func WithProfilingAuthHeaders(headers map[string]string) Option

+ func WithProfilingEnabled(enabled bool) Option

+ func WithProfilingEndpoint(endpoint string) Option

+ func WithRuntimeMetrics(enabled bool) Option

+ func WithServiceName(name string) Option

+ func WithServiceNamespace(namespace string) Option

+ func WithServiceVersion(version string) Option

+ func WithTraceEnabled(enabled bool) Option

+ type SDK struct

+ Logger *slog.Logger

+ Propagator propagation.TextMapPropagator

+ Toggles FeatureToggles

+ func Init(ctx context.Context, opts ...Option) (*SDK, error)

+ func (s *SDK) Meter(name string) metric.Meter

+ func (s *SDK) MeterProvider() metric.MeterProvider

+ func (s *SDK) Shutdown(ctx context.Context) error

+ func (s *SDK) Tracer(name string) oteltrace.Tracer

+ func (s *SDK) TracerProvider() oteltrace.TracerProvider