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AWS X-Ray ID generator for OpenTelemetry




AWS OpenTelemetry X-Ray IdGenerator

[![NPM Published Version][npm-img]][npm-url] [![Apache License][license-image]][license-image]

component owners: @willarmiros @NathanielRN

The OpenTelemetry IdGenerator for AWS X-Ray generates trace IDs with its first four bytes set to the start time of the trace followed by a unique identifier consisting of 12 bytes of randomly generated numbers. OpenTelemetry offers an extension point which allows the usage of this custom IdGenerator as opposed to the out-of-the-box random IdGenerator, enabling compatibility with AWS X-Ray.

Compatible with OpenTelemetry JS API and SDK 1.0+.


npm install --save @opentelemetry/id-generator-aws-xray


In the global tracer configuration file, configure the following:

const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
const { AWSXRayIdGenerator } = require('@opentelemetry/id-generator-aws-xray');

const tracerConfig = {
  idGenerator: new AWSXRayIdGenerator(),
  resources: resources
const tracerProvider = new NodeTracerProvider(tracerConfig);

Trace ID Details

Example trace ID format: 58406520a006649127e371903a2de979

A trace ID consists of two parts:

  1. Timestamp: The first 8 hexadecimal digits represent the time of the original request in Unix epoch time. For example, 10:00 AM December 1st, 2016 PST in epoch time is 1480615200 seconds, or 58406520 in hexadecimal digits.
  2. Unique Identifier: The last 24 hexadecimal digits is an random identifier for the trace.

Useful links


Apache 2.0 - See [LICENSE][license-url] for more information. [discussions-url]: [license-url]: [license-image]: [npm-url]: [npm-img]: