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Re: get confirmation of a payment from other website via a direct action, how to get back to a shopping session?
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Re: get confirmation of a payment from other website via a direct action, how to get back to a shopping session?


  • Subject: Re: get confirmation of a payment from other website via a direct action, how to get back to a shopping session?
  • From: Mike Schrag <email@hidden>
  • Date: Thu, 28 May 2009 09:36:49 -0400

you'll either be using cookies, which species sessionid + instance id, or you'll be using URL encodingand your direct action URL will have both the instance ID as well as ?wosid=xxx in the URL (http://yoursite/cgi-bin/WebObjects/YourApp.woa/instanceid/daname?wosid=xxx ) ... should work fine

ms
Does this also work with several machines running instances? I can imagine it works fine on one server, but as far as I know there is not some shared context over servers, or is there?
instance number is encoded in the URL or in a cookie ... in a standard setup with one apache in front, you will be routed to the correct server based on your instance number*, which will then have the corresponding session id. every time someone clicks a link in your stateful app, they are getting routed to the same server -- wo would just explode in a ball of flames if this didn't function properly.

ms

* and if you have a load balancer in front, it obviously needs to understand sticky sessions, but again, nothing would work right in your app if this wasn't already happening
This IS a consideration of a vulnerability if you LOSE that instance inbetween these operations -- Patrick's suggestion of storing as much as possible in the db would cover you for that.

ms

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References: 
 >get confirmation of a payment from other website via a direct action, how to get back to a shopping session? (From: Johan Henselmans <email@hidden>)
 >Re: get confirmation of a payment from other website via a direct action, how to get back to a shopping session? (From: Mike Schrag <email@hidden>)
 >Re: get confirmation of a payment from other website via a direct action, how to get back to a shopping session? (From: Mike Schrag <email@hidden>)

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