Handles auth methods from auth registry in DataSourceSavedObjectsClientWrapper

[bandinib-amzn]

Description

This PR handles auth methods from auth registry in DataSourceSavedObjectsClientWrapper.

Issues Resolved

Partially fixes #5692, #5838

Screenshot

Testing the changes

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 67.12%. Comparing base (89fcf63) to head (80deb83).

❗ Current head 80deb83 differs from pull request most recent head b3382a5. Consider uploading reports for the commit b3382a5 to get more accurate results

Files	Patch %	Lines
...bjects/data_source_saved_objects_client_wrapper.ts	87.50%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #6062    +/-   ##
========================================
  Coverage   67.12%   67.12%            
========================================
  Files        3321     3319     -2     
  Lines       64085    64192   +107     
  Branches    10280    10308    +28     
========================================
+ Hits        43015    43090    +75     
- Misses      18566    18592    +26     
- Partials     2504     2510     +6     

Flag	Coverage Δ
Linux_1	31.63% <ø> (ø)
Linux_2	55.20% <ø> (ø)
Linux_3	44.65% <87.50%> (+0.04%)	⬆️
Linux_4	35.14% <ø> (+0.04%)	⬆️
Windows_1	31.68% <ø> (+0.02%)	⬆️
Windows_2	55.17% <ø> (ø)
Windows_3	44.67% <87.50%> (+0.05%)	⬆️
Windows_4	35.14% <ø> (+0.04%)	⬆️

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[xinruiba]

Thanks for the change.
Do we also need to handle registered auth method here?

OpenSearch-Dashboards/src/plugins/data_source/server/client/configure_client.ts

Line 180 in 89fcf63

throw Error(`${type} is not a supported auth type for data source`);

[bandinib-amzn]

Thanks for the change. Do we also need to handle registered auth method here?

OpenSearch-Dashboards/src/plugins/data_source/server/client/configure_client.ts

Line 180 in 89fcf63

throw Error(`${type} is not a supported auth type for data source`);

No. This should be fine. On server side how we store in auth registry is little bit different than browser side. On server side, type basically tells with which method request needs to sign. Authentication method can be anything. But there are only two ways we can sign the request - either Basic Auth or AWS SigV4 auth. or don't sign request at all which is No Auth. When we on server side, when authentication method will be registered from plugin or any other component, it will be registered as follows:

{
 name: 'customAuth',
authType: AuthType.SigV4 or AuthType.UsernamePassword,
credentialProvider: () => {retruns credentials required to sign the request}
}