[FEATURE] SearchTemplateResponse should include aggregations and suggest

[eNorby1]

The SearchTemplateResponse currently only includes hits, but would be useful if it also had the aggregations and suggest (optional) fields, same as the regular SearchResponse.

[wbeckler]

Is it available from the server? As in, is this a client parsing and response object issue, or is it a feature request on the opensearch server?

[eNorby1]

It is - from what I can tell the server response is pretty much the same as in a regular SearchResponse. Which makes sense, the request template just gets resolved to a regular query (that can include suggestions and aggregations), the response wouldn't be different.

[bohyunjung]

+1

@wbeckler
It is a client parsing and response object issue.

We're experiencing the same issue using the OpenSearch Java client - When we make a request using SearchTemplate, We cannot access to the aggregations field by SearchTemplateResponse while the server response apparently has it.

[MrEyratnz]

+1 for aggregations (honestly, +1 for feature-parity with RHLC).

Would prefer using the java client, but the RHLC seems much more feature-complete.

Given the existing deprecation notice for the RHLC for OS 3.0.0, is there currently a timeline for feature-parity between the two clients?

[dblock]

The code generation project (see #318 and #366) should reach parity and some.