# Core Services

- [Session Service](/core-services/session-service.md): A service to handle the Get, Update and Clearing of the Session
- [Database Service](/core-services/database-service.md): A service which handles storing of the Basket in the database
- [Basket Service](/core-services/basket-service.md): A service which handles all things around the basket
- [Object Reference](/core-services/object-reference.md)
- [Basket](/core-services/object-reference/basket.md)
- [Customer](/core-services/object-reference/customer.md)
- [UmbCheckoutMetaData](/core-services/object-reference/umbcheckoutmetadata.md)
- [UmbCheckoutSession](/core-services/object-reference/umbcheckoutsession.md)
- [LineItem](/core-services/object-reference/lineitem.md)
- [UmbCheckoutConfiguration](/core-services/object-reference/umbcheckoutconfiguration.md)
- [MultiUrlPicker](/core-services/object-reference/multiurlpicker.md)
- [Cookies](/core-services/cookies.md)
- [Addons](/core-services/addons.md)
- [Database Service](/core-services/addons/database-service.md): A service which handles storing of the Basket in the database
- [Property Editors](/core-services/property-editors.md)
- [MetaData Property Editor](/core-services/property-editors/metadata-property-editor.md)