define_asset_job selection of asset groups

To define an asset job that targets a selection of asset groups, you can use the

define_asset_job

function in combination with the

AssetSelection

API. The

AssetSelection.groups

method allows you to specify one or more asset groups to include in the job. Here's an example from the documentation on how to use

AssetSelection.groups

to target all assets in a specific group:

python from dagster import define_asset_job, AssetSelection  # Define a job that targets all the assets in a group called "marketing": marketing_job = define_asset_job(     name="marketing_job",     selection=AssetSelection.groups("marketing") )

You can also combine multiple groups using the

|

operator, which represents the union of selections:

python # Define a job that targets all assets in both "marketing" and "sales" groups: combined_job = define_asset_job(     name="combined_job",     selection=AssetSelection.groups("marketing") | AssetSelection.groups("sales") )

The

AssetSelection

API provides flexibility in how you select assets for a job, allowing for unions, intersections, and differences of selections using operators like

|

,

&

, and

-

, respectively. Remember that resources are supplied to the assets, not the job itself, so you would define resources at the asset level. For more complex selection logic, you can refer to the

AssetSelection

API in the documentation, which provides a variety of methods to create custom selections based on your needs.