Guides

Aggregates

One input, several rows. Aggregates are built with input blueprints, so the full guide lives there.

An aggregate is a result that implements IBiomeAggregate, so Biome saves its parts in place of the wrapper. You build one with an input blueprint: Blueprint.FromInput, where tests customize a small input object and the factory builds the related rows from it.

Input blueprints can build aggregates as well as ordinary entity outputs, so the full explanation, with a worked example, lives in one guide:

Aggregates: one input, several rows covers IBiomeAggregate, save-time expansion, and transient aggregates.
Input blueprints covers ordinary entity outputs and typed child inputs. Check that the package referenced by your project exposes the form you use.

Transients

Build an entity and return it, without saving it.

Input blueprints

Customize a small input object, then build the row from it. For init-only properties, derived values, typed children, and groups of rows.