OpenTelemetry.Propagator.B3.Internal

Conversion of the hs-opentelemetry internal representation of the trace ID and the span ID and the B3 header representation of them each other.

|----------------+---------------------------------------+------------------------------| | | Trace ID | Span ID | |----------------+---------------------------------------+------------------------------| | Internal | 128-bit integer | 64-bit integer | | B3 Header | Hex text of 64-bit or 128-bit integer | Hex text of 64-bit integer | |----------------+---------------------------------------+------------------------------|

Encoders

encodeTraceId

Arguments

:: TraceId

-> ByteString

ASCII text of 64-bit integer

encodeSpanId

Arguments

:: SpanId

-> ByteString

ASCII text of 64-bit integer

Decoders

decodeXb3TraceIdHeader :: ByteString -> Maybe TraceId

decodeXb3SpanIdHeader :: ByteString -> Maybe SpanId

decodeXb3SampledHeader :: ByteString -> Maybe SamplingState

decodeXb3FlagsHeader :: ByteString -> Maybe SamplingState

decodeB3SampleHeader :: ByteString -> Maybe SamplingState

decodeB3SingleHeader :: ByteString -> Maybe B3SingleHeader

B3SingleHeader

data B3SingleHeader

Constructors

B3SingleHeader

Fields

• traceId :: TraceId
• spanId :: SpanId
• samplingState :: SamplingState
• parentSpanId :: Maybe SpanId

SampleState

data SamplingState

Constructors

Accept

Deny

Debug

Defer

Instances

Eq SamplingState

Defined in OpenTelemetry.Propagator.B3.Internal

Methods

(==) :: SamplingState -> SamplingState -> Bool

(/=) :: SamplingState -> SamplingState -> Bool

Conversions

samplingStateToValue :: SamplingState -> Value

Encode a SamplingState as a Value.

samplingStateFromValue :: Value -> Maybe SamplingState

Used to decode the SamplingState from a TraceState Value.

printSamplingStateSingle :: SamplingState -> Maybe Text

Encode a SamplingState as the Sampling State component of the b3 header value.

printSamplingStateMulti :: SamplingState -> Maybe (HeaderName, Text)

Header Keys

b3Header :: HeaderName

xb3TraceIdHeader :: HeaderName

xb3SpanIdHeader :: HeaderName

xb3SampledHeader :: HeaderName

xb3FlagsHeader :: HeaderName