| 主权项 |
1. A computer-implemented method comprising:
receiving, by a shopping platform from a user device, a browsing request to view an item offered by a first third party retailer; retrieving an estimated inventory value for the item at the first third-party retailer, wherein the shopping platform maintains the estimated inventory value for the item using a combination of a history of purchases of the item by users of the shopping platform and a history of inventory values for the item received from one or more third party retailers; transmitting, from the shopping platform to the user device, a representation of the item as being available for purchase based upon the estimated inventory value for the item; receiving, by the shopping platform from the user device, a request to initiate a purchase of the item in response to the transmitted representation of the item; transmitting, from the shopping platform to a retail server in response to the received selection, a request for a current inventory value for the item; receiving, by the shopping platform from the retail server, the current inventory value for the item; initiating the purchase of the item in response to determining the item is available based upon the received current inventory value. |
