[Home](./index.md) > [bitburner](./bitburner.md) > [WarehouseAPI](./bitburner.warehouseapi.md) > [bulkPurchase](./bitburner.warehouseapi.bulkpurchase.md) ## WarehouseAPI.bulkPurchase() method Set material to bulk-buy. **Signature:** ```typescript bulkPurchase(divisionName: string, city: CityName, materialName: CorpMaterialName, amt: number): void; ``` ## Parameters

Parameter	Type	Description
divisionName	string	Name of the division
city	[CityName](./bitburner.cityname.md)	Name of the city
materialName	[CorpMaterialName](./bitburner.corpmaterialname.md)	Name of the material
amt	number	Amount of material to buy

**Returns:** void ## Remarks RAM cost: 20 GB