Struct SnsEventExtractor 

pub struct SnsEventExtractor;

Extractor for SNS notification events.

SNS events can carry trace context in the AWSTraceHeader message attribute using X-Ray format. This extractor:

1. Does NOT set a parent context (returns current context)
2. Creates span links for each message’s trace context

This follows OpenTelemetry semantic conventions for messaging systems, where the async nature of message queues means span links are more appropriate than parent-child relationships.

Example

use opentelemetry_lambda_tower::{OtelTracingLayer, SnsEventExtractor};

let layer = OtelTracingLayer::new(SnsEventExtractor::new());

Implementations

impl SnsEventExtractor

pub fn new() -> Self

Creates a new SNS event extractor.

Trait Implementations

impl Clone for SnsEventExtractor

fn clone(&self) -> SnsEventExtractor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SnsEventExtractor

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

Formats the value using the given formatter.

impl Default for SnsEventExtractor

fn default() -> SnsEventExtractor

Returns the “default value” for a type.

impl TraceContextExtractor<SnsEvent> for SnsEventExtractor

fn extract_context(&self, _event: &SnsEvent) -> Context

Extracts parent context for creating child spans.

fn extract_links(&self, event: &SnsEvent) -> Vec<Link>

Extracts span links for async message correlation.

fn trigger_type(&self) -> &'static str

Returns the FaaS trigger type for semantic conventions.

fn span_name(&self, event: &SnsEvent, lambda_ctx: &LambdaContext) -> String

Generates span name based on event and Lambda context.

fn record_attributes(&self, event: &SnsEvent, span: &Span)

Records event-specific attributes on the span.