[Spaces] Content summary API

[elena-shostak]

Summary

Added space content summary GET API endpoint which returns summary of the different saved objects that exist within each space.

Request GET kbn:/internal/spaces/a-space/content_summary Response

{
  "summary": [
    {
      "count": 1,
      "type": "config",
      "displayName": "Config"
    },
    {
      "count": 2,
      "type": "dashboard",
      "displayName": "Dashboard",
      "icon": "dashboardApp"
    },
    {
      "count": 4,
      "type": "index-pattern",
      "displayName": "data view",
      "icon": "indexPatternApp"
    },
    {
      "count": 2,
      "type": "tag",
      "displayName": "Tag",
      "icon": "tag"
    }
  ],
  "total": 9
}

Request GET kbn:/internal/spaces/not-a-space/content_summary Response

{
  "statusCode": 404,
  "error": "Not Found",
  "message": "Not Found"
}

Checklist

• [x] Unit or functional tests were updated or added to match the most common scenarios
• [x] Flaky Test Runner was used on any tests changed. Report

For maintainers

• [x] This was checked for breaking API changes and was labeled appropriately

Fixes: https://github.com/elastic/kibana/issues/182406

[elena-shostak]

/ci

[elena-shostak]

/ci

[elasticmachine]

Pinging @elastic/kibana-security (Team:Security)

[kibana-ci]

:green_heart: Build Succeeded

• Buildkite Build
• Commit: b0e28bf44b324c6f6e86f49643096797327011ea

Metrics [docs]

✅ unchanged

History

• :green_heart: Build #208708 succeeded 40e5ec172562b925d333ba1656173812359c602c
• :yellow_heart: Build #208630 was flaky a981f27f30e99e07a1a890190b2d9df0b8ee1484

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