forked from openzipkin/zipkin-go
/
shared.go
24 lines (21 loc) · 939 Bytes
/
shared.go
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package b3
import "errors"
// Common Header Extraction / Injection errors
var (
ErrInvalidSampledHeader = errors.New("invalid B3 Sampled header found")
ErrInvalidFlagsHeader = errors.New("invalid B3 Flags header found")
ErrInvalidTraceIDHeader = errors.New("invalid B3 TraceID header found")
ErrInvalidSpanIDHeader = errors.New("invalid B3 SpanID header found")
ErrInvalidParentSpanIDHeader = errors.New("invalid B3 ParentSpanID header found")
ErrInvalidScope = errors.New("require either both TraceID and SpanID or none")
ErrInvalidScopeParent = errors.New("ParentSpanID requires both TraceID and SpanID to be available")
ErrEmptyContext = errors.New("empty request context")
)
// Default B3 Header keys
const (
TraceID = "x-b3-traceid"
SpanID = "x-b3-spanid"
ParentSpanID = "x-b3-parentspanid"
Sampled = "x-b3-sampled"
Flags = "x-b3-flags"
)