Get a price quote for a barwa.pl product. Calculated by the same engine as the on-site calculator, so the price is identical. Returns net/gross price, currency, delivery time and, if the configuration matches a defined product, its name and link. Use get_product_pricing_schema first for valid option ids. width/height in mm (free-size products) or format_id (predefined). quantity is the TOTAL run and the product minimum applies per design: with liczba_wzorow=N the minimum is N x schema quantity.min. pages = total inner pages/sheets (books, brochures, calendars) — only when the schema lists options.pages; respect its min/max/step. A product whose schema marks material as required (no default) needs material_id. Bound products (books, brochures, notebooks) need a quantity that is a multiple of copies per sheet, which depends on size and material: on error quantity_not_multiple retry with a value from allowed.quantities. Default finishes are already included; to drop one (e.g. no lamination) pass its group_id in remove_finish_groups (only groups with removable=true) and relay any returned warnings to the customer.