Struct SpanContext 

pub struct SpanContext {
    pub trace_id: Option<String>,
    pub parent_span_id: Option<String>,
    pub baggage: Vec<(String, String)>,
}

Context for distributed tracing.

Fields

trace_id: Option<String>

Trace ID (for distributed tracing)

parent_span_id: Option<String>

Parent span ID

baggage: Vec<(String, String)>

Additional baggage

Implementations

impl SpanContext

pub fn new() -> Self

Create empty context.

pub fn with_trace_id(self, trace_id: impl Into<String>) -> Self

Create with trace ID.

pub fn with_baggage( self, key: impl Into<String>, value: impl Into<String>, ) -> Self

Add baggage item.

Trait Implementations

impl Clone for SpanContext

fn clone(&self) -> SpanContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpanContext

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

Formats the value using the given formatter.

impl Default for SpanContext

fn default() -> SpanContext

Returns the “default value” for a type.