Package Exports

aws-xray-lambda-promise-subsegment

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Readme

aws-xray-lambda-promise-subsegment

This will wrap an existing promise in a new promise that also creates a new subsegment in aws x-ray. It takes advantage of lambda already having an open trace to add a sub-segment to.

Running locally

If you are running locally an not inside lambda, you will get a warning:

WARNING: Skipping adding subsegment because we are not executing inside of aws lambda

This is because there is no open trace to add a segment to. However, this will allow you to test locally without errors occuring.

Usage

// javascript
const addPromiseSegment = require("aws-xray-lambda-promise-subsegment").addPromiseSegment;

const promiseOfThings = promiseOfThingsFactory();

const promiseWrappedInSegment = addPromiseSegment("subSegmentName", promiseOfThings, {
      someMetadata1: greatValue,
      someMetadata2: amazingValue
  },
  {
      annotation1: bestValue,
      annotation2: biglyValue
  });

// typescript
import { addPromiseSegment } from "aws-xray-lambda-promise-subsegment";

const promiseOfThings = promiseOfThingsFactory();

const promiseWrappedInSegment = addPromiseSegment("subSegmentName", promiseOfThings, {
      someMetadata1: greatValue,
      someMetadata2: amazingValue
  },
  {
      annotation1: bestValue,
      annotation2: biglyValue
  });