Struct PropagationContext 

pub struct PropagationContext {
    pub version: u16,
    pub root_uuid: Option<Uuid>,
    pub parent_uuid: Uuid,
}

Versioned, transport-neutral causal context for crossing a Relay boundary.

Applications are responsible for serializing, transporting, authenticating, and trusting this value. It intentionally contains only Relay identifiers; OpenTelemetry traceparent and tracestate remain transport sidecars. A context without a root_uuid preserves Relay event parentage when imported. The first local OpenTelemetry span created after import starts a new trace.

Fields

version: u16

Wire-format version. Version 1 is the only currently supported value.

root_uuid: Option<Uuid>

Stable session root when the sending application knows one. When this root is omitted, the first local OpenTelemetry span after import starts a new trace.

parent_uuid: Uuid

Immediate Relay event or scope that caused the boundary crossing.

Implementations

impl PropagationContext

pub const VERSION: u16 = 1

The current wire-format version.

pub fn to_json(&self) -> Result<String>

Serialize this validated context for application-managed transport.

pub fn from_json(value: &str) -> Result<Self>

Deserialize and validate a context received from application-managed transport.

pub fn validate(&self) -> Result<()>

Validate a context received from an untrusted transport.

Trait Implementations

impl Clone for PropagationContext

fn clone(&self) -> PropagationContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PropagationContext

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PropagationContext

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for PropagationContext

impl PartialEq for PropagationContext

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for PropagationContext

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 PropagationContext