• @azure/digital-twins-core:
• ^1.1.0:
• Operating system:
• nodejs
  • 16.13:
• browser
  • name/version:
• typescript
  • ^4.3.5:
• Is the bug related to documentation in
  • README.md
  • source code documentation
  • SDK API docs on https://docs.microsoft.com

Describe the bug
Hey. While working with digital twins client and trying to execute few queries at same time I expected that options passed to DigitalTwinsClient:

retryOptions: {
  maxRetries: 20,
  retryDelayInMs: 5000,
},

don't change anything. My queries got immediate rejected with QuotaExceptionError. After some investigation of your code I spot that also there is no Retry-After header in response as mentioned in the docs. I found it in @azure/core-rest-pipeline/dist/index.js@getRetryAfterInMs.

if (!(response && [429, 503].includes(response.status)))
  return undefined;

Status code is 200 for QuotaExceptionError.

const retryAfterHeader = response.headers.get(RetryAfterHeader);

There is no "retry-after-ms", "x-ms-retry-after-ms", "Retry-After" in response.

To Reproduce
Steps to reproduce the behavior:

1. Execute few DT queries using digitalTwinsClient.queryTwins() till you will get QuotaExceptionError.

Expected behavior
Retry logic is working.

Screenshots
Here is function which I modified.

Additional context
Add any other context about the problem here.