Struct TraceContext 

pub struct TraceContext {
    pub version: u8,
    pub trace_id: String,
    pub parent_id: String,
    pub flags: u8,
}

W3C Trace Context (traceparent header) (P2-8).

Format: version-trace_id-parent_id-flags, e.g. 00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01. trace_id is 32 lowercase hex chars, parent_id 16, flags 2 (bit 0 = sampled).

Fields

version: u8

Version byte (currently 0, serialized as "00").

trace_id: String

32-char lowercase hex trace id.

parent_id: String

16-char lowercase hex parent span id.

flags: u8

2-char hex flags byte (bit 0 = sampled).

Implementations

impl TraceContext

pub fn new(trace_id: impl Into<String>, parent_id: impl Into<String>) -> Self

Create a new (unsampled) trace context with version 00.

pub fn sampled(self) -> Self

Mark the trace as sampled (sets flags bit 0).

pub fn is_sampled(&self) -> bool

Whether this trace has been marked as sampled.

pub fn parse(s: &str) -> Option<Self>

Parse a traceparent header value.

pub fn to_traceparent(&self) -> String

Serialize to a traceparent header value.

Trait Implementations

impl Clone for TraceContext

fn clone(&self) -> TraceContext

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TraceContext

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TraceContext

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for TraceContext

impl PartialEq for TraceContext

fn eq(&self, other: &TraceContext) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for TraceContext

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TraceContext