Dynamic Blueprint parameters with Search API

Issue

Blueprints offer static filtering by field values, but a dynamic approach is needed where search fields enable filtering based on user-provided values for specific structure fields, Is possible to provide custom parameters to Search Blueprints?
- How can I create a search experience that allows filtering content from a specific structure based on the values of its fields, using a dedicated search input for each field?

Dynamic filtering by structure fields can be achieved using Blueprints and the Search headless API:

Create the Blueprint:
- Add a parameter in the Blueprint configuration, prefixed with search.experiences.* (e.g., search.experiences.fieldName). This parameter will hold the value entered by the user in the search input.
- In the Query Builder, under "Paste Any Elasticsearch Query" or "JSON element", insert ${search.experiences.fieldName} in the code as a variable.
  - This integrates the parameter's value into the search query.
- Adjust "Query Settings" as needed to refine the search behavior.
- Test the Blueprint by setting the variable directly within the Blueprint preview.
- Configure and copy the External Reference Code (ERC) for API usage.
Access the Search Headless API:
- Enable the Release Feature Flag LPS-179669.
- Use the postSearchPage endpoint of the Search headless API (ensure the feature flag is enabled). This endpoint allows executing searches based on Blueprints.
- Include the parameter nestedFields=embedded to retrieve embedded objects (content). This ensures that the structure's fields are included in the search results.
- In the request body, provide a JSON structure containing the variable with the value to filter by (e.g., {"fieldName": "your_value"}). Replace fieldName with the actual name you used in the Blueprint configuration and your_value with the desired filter value.
- The API response will return search results filtered based on your provided parameter.

Alternative Approaches:

Headless Delivery API for Web Content Filtering: Explore the headless APIs specifically designed for filtering web content by structure fields, like headless delivery API.
Nested Custom Filters: Consider using nested Custom Filters for a more integrated approach to filtering within the search interface.
Custom Facets: Utilize Custom Facets to provide users with interactive filtering options based on structure field values.