H09 Attach a recipe to a product

Use your current course session. Preparation and course runner · R script ↓

H09 Attach a recipe to a product

Goal: Compose a definition and inspect its plan.

Prerequisites: H08.

Attach the recipe directly to the product. There is no need for an empty workflow builder.

training_step(
  "H09",
  {
    prepared_product <- policy_product |> dr_add_recipe(rounding_recipe)
    print(dr_plan(prepared_product))
    prepared_run <- dr_run(
      prepared_product,
      data = precise_policies,
      write = FALSE
    )
    prepared_rows <- dr_collect(prepared_run)
    print(prepared_rows)
    stopifnot(prepared_rows$premium[1] == 100.13, policies$premium[1] == 100)
  },
  needs = c("H08")
)

Expected result: Rounded output; the original delivery remains unchanged.

Task: When are product checks applied?