In this article we show how Forms Authentication can be used to secure ASP.Net Web Services, using the built-in ASP.Net Membership Provider classes which utilize SQL Server to store usernames and passwords.
Adding a Web Service, (also called an Application Programming Interface, or API for short) to an existing web site or desktop application (of the client-server variety) is a great way to enable additional and innovative uses of the data it holds, and also extend its reach to different development platforms such as native Apple and Linux applications , or to native mobile device applications such as those on Apple’s iPhone.
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