@aws/otel-aws-xray-id-generator

AWS OpenTelemetry X-Ray IdGenerator README

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.

Installation

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

Usage

In the global tracer configuration file, configure the following:

const { NodeTracerProvider } = require('@opentelemetry/node');
const { AwsXRayIdGenerator } = require('@aws-observability/propagator-aws-xray');
// ...

module.exports = ("service_name_here") => {
   const tracerConfig = {
    idGenerator: new AwsXRayIdGenerator(),
    resources: resources
  };
  const tracerProvider = new NodeTracerProvider(tracerConfig);
  // ...}

For more details, see the Getting Started guide.

Trace ID Details

Example trace ID format: 58406520a006649127e371903a2de979

A trace ID consists of two parts; the time stamp and the unique identifier.

Time Stamp

• the first 8 hexadecimal digits represent the time of the original request in Unix epoch time
• for example, 10:00AM December 1st, 2016 PST in epoch time is 1480615200 seconds, or 58406520 in hexadecimal digits.

Unique Identifier

• the last 24 hexadecimal digits is an unique identifier for the trace

Useful links

• For more information on OpenTelemetry, visit: https://opentelemetry.io/
• For more about OpenTelemetry JavaScript: https://github.com/open-telemetry/opentelemetry-js
• For help or feedback on this project, join us on gitter

License

Apache 2.0 - See LICENSE for more information.