I would approach it from the user level and ask for there paypal address of record first. i would then build the Shipping estimate tables so they are access fast. note: this is a change from the manual maintainance of the shipping estimate tables. Then i would call paypal. on the return request would do check if the address changed, if not then use the previous. would then check for for the zipcode to see if in same rate table, which usually it is, then return the previous tables. my experience in building the shipping estimates for USPS and UPS for a rate table based on a zipcode is under a few seconds. using the shipping estimate service should not be more than a few milli seconds if the data is already there. Also using this method once a rate table is built it is good for about 6 months.
Scott Gray sent the following on 8/4/2009 3:13 PM: > Hi All, > > In order to be able to perform a full checkout with PayPal's Express > Checkout you are required to send 1 or more 'default' shipping > methods/estimates along with the request that initiates the checkout. > It's a bit of a PITA because you don't yet know the shipping address but > are required to provide estimates anyway. > > Later in the checkout process PayPal sends you the shipping address as > soon as it is known and requests a new list of shipment > methods/estimates. If and only if that communication fails or times out > (6 seconds) are 'default' shipping methods/estimates used. > > So I'm trying to figure out the best way to get these default shipment > methods into the data model without affecting anything else, here's some > options so far: > 1. Create a new entity which is a join of PaymentGatewayConfigPayPal > and ShipmentCostEstimate and avoid the shipment estimate services. I > haven't looked into how I could force a certain shipment cost when > creating the order yet. > 2. Add an estimateWithoutGeo field to ProductStoreShipmentMethod (or > perhaps to ShipmentCostEstimate) and support for it to the shipment > estimate services which allows an estimate to be calculated without > knowing the destination. > > Any thoughts? Other suggestions? > > Thanks > Scott > > HotWax Media > http://www.hotwaxmedia.com -- BJ Freeman http://www.businessesnetwork.com/automation http://bjfreeman.elance.com http://www.linkedin.com/profile?viewProfile=&key=1237480&locale=en_US&trk=tab_pro Systems Integrator.
