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Real World XML Web Services: For VB and VB .NET Developers by Yasser Shohoud

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13.4. Authentication and Authorization

At this point, we have the core Web service operations implemented and working. However, there's still a lot of work to be done. We must secure the Web service so that only registered users with the appropriate permissions can access each of the methods. We must also modify the standard, auto-generated, documentation page to inform users that registration is required and to give them a link to the registration page. We also need to implement a usage tracking system so that we can monitor the usage for each user and, possibly, bill for it.

As you can see, a typical Web service requires substantial infrastructure. Instead of building security and usage accounting from scratch, we will simply use the infrastructure ...

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