Use index pattern service to load index patterns

[mattkime]

There are a number of places where kibana index patterns are loaded directly from the Saved Object API instead of the index patterns service on the data plugin. This essentially treats the index pattern saved objects as an api in itself and makes changing the index patterns api more difficult. In particular, we'd like to be able to separate out the index pattern string from the displayed title of the index pattern. This issue tracks the changes needed to remove working directly with saved objects.

• @elastic/ml-ui
  • x-pack/plugins/ml [ML] Using data views service for loading data views #113961
  • x-pack/plugins/transform [ML] Transforms: Use data views service for loading data views #124381
  • x-pack/plugins/data_visualizer/public/application/file_data_visualizer/components/import_view/import_view.js [ML] File data visualizer: Use data views service for loading data views #131903
• @elastic/kibana-app Index pattern management resolved - [Indexpattern management] Use indexPatterns Service instead of savedObjects client #91839
• @elastic/kibana-app lens - resolved - [Lens] Load indexpatterns list from indexPattern Service #91984
• @elastic/kibana-presentation https://github.com/elastic/kibana/blob/master/x-pack/plugins/canvas/public/lib/es_service.ts
• @elastic/fleet - Fleet needs to use data view api to create data views, no saved object api #153368
• @elastic/kibana-app-services (need to do after others are complete)
  • filter manager [Filter manager] Stop loading index patterns via saved object, use service instead #91036
  • use index patterns and search services for autocomplete #92861
• @elastic/kibana-core Use the data plugin's index-pattern APIs for the "Should show the interstitial page" validation #108711
• @elastic/apm-ui [APM] Use index pattern service to load index patterns #131368
• @elastic/kibana-data-discovery
  • x-pack/plugins/graph/public/helpers/use_workspace_loader.ts [Graph] Make use of data view service instead of Saved Object API #131378
  • src/plugins/discover/public/application/view_alert/view_alert_route.tsx
• @elastic/response-ops
  • x-pack/plugins/triggers_actions_ui/public/common/lib/data_apis.ts [Alerting] Use index pattern service to load index patterns #129914
• @elastic/platform-deployment-management
  • x-pack/plugins/watcher/server/routes/api/indices/register_get_index_patterns_route.ts
    • May benefit from Index Patterns REST API for getting list of all patterns #99928 - targeting early 8.4

[rudolf]

Once we've migrated all plugins over to the index patterns service we should consider setting hidden: true for the index-pattern saved object to block any plugins from reading these directly again in the future. This would require adding an index pattern HTTP API (if we don't already have one) and we would have to document it so that external users who might be relying on the saved objects API can switch to this dedicated API instead.

This is a pattern we want all saved objects to adopt in the long term #72028

[kertal]

Closing this, because it's > 3 years old, and except #153368 all seems to be resolved, or the linked code is no longer valid