funcContextWithGetHook¶

func ContextWithGetHook(parentcontext.Context, hookGetHookFunc)context.Context

ContextWithGetHook returns a copy of parent with hook configured to beinvoked every time FromContext is called.

Passing nil GetHookFunc creates a context with no get hook to call.

funcContextWithList¶added inv1.0.0

func ContextWithList(parentcontext.Context, listList)context.Context

ContextWithList returns a copy of parent with baggage. Passing nil listreturns a context without any baggage.

funcContextWithSetHook¶

func ContextWithSetHook(parentcontext.Context, hookSetHookFunc)context.Context

ContextWithSetHook returns a copy of parent with hook configured to beinvoked every time ContextWithBaggage is called.

Passing nil SetHookFunc creates a context with no set hook to call.

typeGetHookFunc¶

type GetHookFunc func(context.Context,List)List

GetHookFunc is a callback called when getting baggage from the context.

typeItem¶added inv1.0.0

type Item struct {ValuestringProperties []Property}

Item is the value and metadata properties part of a list-member.

typeList¶added inv1.0.0

type List map[string]Item

List is the collection of baggage members. The W3C allows for duplicates,but OpenTelemetry does not, therefore, this is represented as a map.

func ListFromContext(ctxcontext.Context)List

typeProperty¶added inv1.0.0

type Property struct {Key, Valuestring// HasValue indicates if a zero-value value means the property does not// have a value or if it was the zero-value.HasValuebool}

Property is a metadata entry for a list-member.

typeSetHookFunc¶

type SetHookFunc func(context.Context,List)context.Context

SetHookFunc is a callback called when storing baggage in the context.