28.6. Session Tracking in Web Services

Section 26.7 described the advantages of using session tracking to maintain client state information so you can personalize the users’ browsing experiences. Now we’ll incorporate session tracking into a web service. Suppose a client application needs to call several methods from the same web service, possibly several times each. In such a case, it can be beneficial for the web service to maintain state information for the client, thus eliminating the need for client information to be passed between the client and the web service multiple times. For example, a web service that provides local restaurant reviews could store the client user’s street address during the initial request, then use it to return ...

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