Make changes to allow for /api/quality-metrics to work

[ADI-ROXX]

Which problem is this PR solving?

• Resolves [Feature]: Make changes to allow for /api/quality-metrics to work #2640

Description of the changes

How was this change tested?

Checklist

• I have read https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
• I have signed all commits
• I have added unit tests for the new functionality
• I have run lint and test steps successfully
  • for jaeger: make lint test
  • for jaeger-ui: npm run lint and npm run test

[ADI-ROXX]

@yurishkuro Some tests are failing. I have to make changes in the .test.js files

[yurishkuro]

lgtm. Is it correct that this is a breaking change (different data shape is expected)? Please document it in the description.

[yurishkuro]

can you get the CI to green? Both linter and unit tests are failing.

[ADI-ROXX]

Is it correct that this is a breaking change (different data shape is expected)?

I didn't understand. Can you elaborate it a bit? What data shape is actually expected?

[yurishkuro]

You are now parsing data in a different shape than before (the "data" sub-structure in json)

[ADI-ROXX]

You are now parsing data in a different shape than before (the "data" sub-structure in json)

Are you referring to this:

[yurishkuro]

yes