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Tutorials - How To Invoke a Simple External Web Service
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The easiest way to invoke a Web service is to use the Delve Toolkit’s Web service invocation wizard (see Delve Habitat Tutorial). In some cases, however, it may be preferable to code an invocation by hand. This is generally pretty easy, requiring as little as a single line of code. In this lesson we’ll be taking a look at how easy it is to invoke a simple Web service using the “invoke” statement. To use “invoke,” a Web service must be registered as a resource—a simple process described in the Delve Habitat Tutorial.

To use “invoke,” a Web service must be registered as a resource—a simple process described in the Delve Habitat Tutorial. In this example we’ll call a service “GridAccess” with an operation “businessAt” that provides the name the business closest to a set of urban grid coordinates.

 


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