Consuming Data in a Web Service
After the Web service has been built and exposed on the Web server, a client will typically call it by building a SOAP message and sending it to the server. However, Web services created by VS .NET by default also can be called using an HTTP-GET or POST. In this way, clients that don't support SOAP can still invoke the Web service. For example, a client can issue the following HTTP-GET to call the GetTopSellers method of the Catalog Web service:
GET /Catalog.asmx/GetTopSellers?daysOut=value HTTP/1.1
Host: www.computebooks.com
The result will be an XML document that includes the schema of the DataSet along with the serialized DiffGram encoded as follows:
HTTP/1.1 200 OK Content-Type: text/xml; charset=utf-8 Content-Length: ...
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