[−][src]Module opentelemetry::api::trace::b3_propagator
B3 Propagator
The B3Propagator facilitates SpanContext propagation using
B3 Headers. This propagator supports both version of B3 headers,
- Single Header: b3: {trace_id}-{span_id}-{sampling_state}-{parent_span_id}
- Multiple Headers: X-B3-TraceId: {trace_id} X-B3-ParentSpanId: {parent_span_id} X-B3-SpanId: {span_id} X-B3-Sampled: {sampling_state} X-B3-Flags: {debug_flag}
If inject_encoding is set to B3Encoding::SingleHeader then b3 header is used to inject
and extract. Otherwise, separate headers are used to inject and extract.
Structs
| B3Propagator | Extracts and injects |
Enums
| B3Encoding | B3Encoding is a bitmask to represent B3 encoding type |