Struct Span 

pub struct Span {

    pub trace_id: String,
    pub span_id: String,
    pub parent_span_id: Option<String>,
    pub name: String,
    pub service: String,
    pub kind: Option<SpanKind>,
    pub status: SpanStatus,
    pub start_time: i64,
    pub duration_us: i64,
    pub attributes: Option<BTreeMap<String, String>>,
    pub events: Option<Vec<SpanEvent>>,
    pub resource: Option<BTreeMap<String, String>>,
    pub extensions: Option<BTreeMap<String, Value>>,
}

A single span in a distributed trace.

All IDs are lowercase hex strings. parent_span_id is None for root spans. Attributes are flattened to string values.

Fields

trace_id: String

Trace ID in lowercase hex (16 or 32 chars).

span_id: String

Span ID in lowercase hex (16 chars).

parent_span_id: Option<String>

Parent span ID. None for root spans.

name: String

Operation name.

service: String

Service name.

kind: Option<SpanKind>

Span kind, normalized to OTel SpanKind.

status: SpanStatus

Span status: ok, error, or unset.

start_time: i64

Start time as Unix seconds.

duration_us: i64

Duration in microseconds (integer, no floating point precision loss).

attributes: Option<BTreeMap<String, String>>

Span attributes, flattened to string values.

events: Option<Vec<SpanEvent>>

Span events (Full View only). Not all providers populate this field.

resource: Option<BTreeMap<String, String>>

Resource attributes (Full View only).

extensions: Option<BTreeMap<String, Value>>

Provider-specific metadata (Full View only).

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Span

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Span

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Span

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Span

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 Span